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1. Biomedical articles (top 50; 2009 to 2014)
1. |||||||||. 100%  Bătăiosu M, Diaconu O, Moraru I, Dăguci C, Tuculină M, Dăguci L, Gheorghiţă L: The failures of root canal preparation with hand ProTaper. Curr Health Sci J; 2012 Jul;38(3):129-31
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] The failures of root canal preparation with hand ProTaper.
  • The failures of root canal preparation are due to some anatomical deviation (canal in "C" or "S") and some technique errors.
  • The technique errors are usually present in canal root cleansing and shaping stage and are the result of endodontic treatment objectives deviation.
  • OBJECTIVES: Our study was made on technique errors while preparing the canal roots with hand ProTaper.
  • The canal root of these teeth were cleansed and shaped with hand ProTaper by crown-down technique and canal irrigation with NaOCl(2,5%).
  • The dental preparation control was made by X-ray.
  • RESULTS: During canal root preparation some failures were observed like: canal root overinstrumentation, zipping and stripping phenomenon, discarded and/or fractured instruments.
  • CONCLUSIONS: Hand ProTaper represents a revolutionary progress of endodontic treatment, but a deviation from accepted rules of canal root instrumentation can lead to failures of endodontic treatment.

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  • (PMID = 24778848.001).
  • [ISSN] 2067-0656
  • [Journal-full-title] Current health sciences journal
  • [ISO-abbreviation] Curr Health Sci J
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] Romania
  • [Other-IDs] NLM/ PMC3945274
  • [Keywords] NOTNLM ; ProTaper / root canal / technique errors
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2. |||||||||. 100%  Surakanti JR, Venkata RC, Vemisetty HK, Dandolu RK, Jaya NK, Thota S: Comparative evaluation of apically extruded debris during root canal preparation using ProTaper™, Hyflex™ and Waveone™ rotary systems. J Conserv Dent; 2014 Mar;17(2):129-32
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Comparative evaluation of apically extruded debris during root canal preparation using ProTaper™, Hyflex™ and Waveone™ rotary systems.
  • The purpose of this in vitro study was to assess the amount of apically extruded debris during the root canal preparation using rotary and reciprocating nickel-titanium instrumentation systems.
  • The root canals were instrumented according to the manufacturers' instructions using the Reciprocating single-file system WaveOne™ (Dentsply Maillefer, Ballaigues, Switzerland) and full-sequence rotary Hyflex CM™ (Coltene Whaledent, Allstetten, Switzerland) and ProTaper™ (Dentsply Maillefer, Ballaigues, Switzerland) instruments.

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  • (PMID = 24778507.001).
  • [ISSN] 0972-0707
  • [Journal-full-title] Journal of conservative dentistry : JCD
  • [ISO-abbreviation] J Conserv Dent
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] India
  • [Other-IDs] NLM/ PMC4001267
  • [Keywords] NOTNLM ; Apical extrusion / Hyflex / WaveOne / reciprocating motion
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3. |||||||||. 94%  Pasternak B Jr, Sousa Neto MD, Dionísio VC, Pécora JD, Silva RG: Analysis of kinematic, kinetic and electromyographic patterns during root canal preparation with rotary and manual instruments. J Appl Oral Sci; 2012 Feb;20(1):57-63
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Analysis of kinematic, kinetic and electromyographic patterns during root canal preparation with rotary and manual instruments.
  • OBJECTIVE: This study assessed the muscular activity during root canal preparation through kinematics, kinetics, and electromyography (EMG).
  • MATERIAL AND METHODS: The operators prepared one canal with RaCe rotary instruments and another with Flexo-files.
  • CONCLUSION: The muscular recruitment for accomplishment of articular movements for root canal preparation with either the rotary or manual techniques is distinct.
  • [MeSH-major] Endodontics. Muscle, Skeletal / physiology. Root Canal Preparation / instrumentation

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  • (PMID = 22437679.001).
  • [ISSN] 1678-7765
  • [Journal-full-title] Journal of applied oral science : revista FOB
  • [ISO-abbreviation] J Appl Oral Sci
  • [Language] eng
  • [Publication-type] Comparative Study; Journal Article
  • [Publication-country] Brazil
  • [Other-IDs] NLM/ PMC3928773
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4. |||||||||. 94%  Wang R, Gao XJ, Sun TQ, Tan H, Huang DM: [The clinical analysis on the effects of different difficulty in root canal preparation]. Hua Xi Kou Qiang Yi Xue Za Zhi; 2011 Apr;29(2):146-8, 152
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] [The clinical analysis on the effects of different difficulty in root canal preparation].
  • OBJECTIVE: To investigate the effects of root canal preparation treated by endodontists of different levels in different difficulty associated with the root canal anatomy factors.
  • METHODS: Totally 422 teeth with 901 root canals were randomly selected from the Conservative Dentistry Department, West China Stomatology Hospital, and these teeth were respectively treated by junior specialist postgraduates, senior specialist postgraduates and endodontic specialists.
  • Grading criteria of root canal risk factor and root canal therapy difficulty assessment were found based on 6 items: Tooth type, working length, root curvature, calcification, number of canals, and the previous endodontic treatment.
  • The effects of root canal preparation with different difficulty in different groups were analyzed with RxC Chi-square test.
  • RESULTS: Success rates of root canal preparation in junior group and senior group during three difficulty groups were statistically different (P < 0.05), and the root canal therapy difficulty group I > group II > group III.
  • The operator factors in root canal therapy difficulty group I and group II were not significantly different P > 0.05).
  • But in root canal therapy difficulty group III, the endodontic specialist group have highest success rate in root canal preparation.
  • CONCLUSION: The cases of root canal treatment should be treated by endodontist of corresponding level according to the difficulty.
  • In difficult cases, endodontic specialist can provide better root canal preparation result.

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  • (PMID = 21598484.001).
  • [ISSN] 1000-1182
  • [Journal-full-title] Hua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology
  • [ISO-abbreviation] Hua Xi Kou Qiang Yi Xue Za Zhi
  • [Language] chi
  • [Publication-type] English Abstract; Journal Article
  • [Publication-country] China
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5. |||||||||. 88%  Liu Y, Ma W, Gao W: [Effect of different techniques in root canal preparation on coronal microleakage of endodontically treated teeth]. Hua Xi Kou Qiang Yi Xue Za Zhi; 2012 Oct;30(5):522-5
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  • [Title] [Effect of different techniques in root canal preparation on coronal microleakage of endodontically treated teeth].
  • OBJECTIVE: To compare the effect of three techniques in root canal preparation on coronal microleakage of endodontically treated teeth.
  • Two specimens of every group were split longitudinally into equal segments and canal walls at coronal portion were examined under scanning electron microscope (SEM).
  • In group B and group C, the smear layer of root canals were removed and dentinal tubules were open.
  • In group D, the root canal dentinal tubules were sealed or semi-sealed and the smear layer were melted and ablated.
  • CONCLUSION: The coronal microleakage following root canal treatment could be reduced by removing smear layer with different techniques in root canal preparation.

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  • (PMID = 23173320.001).
  • [ISSN] 1000-1182
  • [Journal-full-title] Hua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology
  • [ISO-abbreviation] Hua Xi Kou Qiang Yi Xue Za Zhi
  • [Language] chi
  • [Publication-type] English Abstract; Journal Article
  • [Publication-country] China
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6. |......... 8%  Cooper IF, Siadaty MS: 'Body PartsCMMA OrgansCMMA or Organ Components' associated with 'Canal Preparation Root': Top Publications. BioMedLib Review; BodyPartOrgan;CanalPreparationRoot:706695261. ISSN: 2331-5717. 2014/1/30
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  • [Title] 'Body PartsCMMA OrgansCMMA or Organ Components' associated with 'Canal Preparation Root': Top Publications.
  • [Transliterated title]
  • Background: There are articles published each month which present 'Body Part Organ or Organ Component' for 'canal preparation root'.
  • Finding such articles is important for researchers, clinicians, and patients.
  • However these articles are spread across thousands of journals, and there are many types of 'Body Part Organ or Organ Component'.
  • This makes searching and locating the relevant publications a challenge.
  • We have used BioMedLib's semantic search technology to address the issue, and gathered all the pertinent publications in this review article.
  • Methods: We categorized the publications we found into two groups.
  • We used the strength of textual-association to separate the groups.
  • In group one there are publications with the strongest evidence of association. We focused finding the most relevant publications pertinent to our goal, rather than combining them into a conclusion section. Such textual synthesis will be the focus of our next project.
  • Results: Group one includes 20 publications, and group two 5149 publications.
  • Here are the top 10.
  • Souza RA: The importance of apical patency and cleaning of the apical foramen on root canal preparation.
  • Zhang L et al: [Residual dentin thickness in first premolars after root canal preparation].
  • Milani AS et al: The effect of root canal preparation on the development of dentin cracks.
  • Barreto MS et al: Vertical root fractures and dentin defects: effects of root canal preparation, filling, and mechanical cycling.
  • Matsuoka E et al: Morphological study of the Er,Cr:YSGG laser for root canal preparation in mandibular incisors with curved root canals.
  • Peters OA et al: Root canal preparation of maxillary molars with the self-adjusting file: a micro-computed tomography study.
  • Ahmed HM: Anatomical challenges, electronic working length determination and current developments in root canal preparation of primary molar teeth.
  • Wang Y et al: [Clinical effect of three kinds of rotary nickel-titanium instruments on root canal preparation of molars].
  • Abou-Rass M et al: The use of rotary instruments as auxiliary aids to root canal preparation of molars.
  • Patterson SM et al: The effect of an apical dentin plug in root canal preparation.

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  • [Copyright] Copyright 2014 Siadaty and Cooper; licensee BioMedLib LLC.
  • (UID = 706695261.001).
  • [ISSN] 2331-5717
  • [Journal-full-title] BioMedLib Review
  • [Language] eng
  • [Publication-type] Review
  • [Publication-country] UNITED STATES
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7. |||||||||. 105%  Boessler C, Paque F, Peters OA: The effect of electropolishing on torque and force during simulated root canal preparation with ProTaper shaping files. J Endod; 2009 Jan;35(1):102-6
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] The effect of electropolishing on torque and force during simulated root canal preparation with ProTaper shaping files.
  • We studied the impact of two surface types, machined and electropolished, of ProTaper shaping files on torque and force during simulated root canal preparation.
  • Pilot holes of 0.5-mm diameter were drilled perpendicularly through 3-mm thick human dentin discs and served as standardized simulated root canals (SSRCs).
  • In three experimental groups (Sx, S1, and S2) preparation of SSRCs was performed using electropolished versus machined instruments in the same dentin disc.
  • [MeSH-major] Dental Instruments. Dental Polishing. Root Canal Preparation / instrumentation

  • HSDB. structure - NICKEL, ELEMENTAL.
  • HSDB. structure - TITANIUM.
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  • (PMID = 19084135.001).
  • [ISSN] 1878-3554
  • [Journal-full-title] Journal of endodontics
  • [ISO-abbreviation] J Endod
  • [Language] eng
  • [Publication-type] Comparative Study; Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Dental Alloys; 12035-60-8 / titanium nickelide; 7OV03QG267 / Nickel; D1JT611TNE / Titanium
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8. |||||||||. 105%  Han JL, He H, Zhu YQ: [Analysis of interappointment flare-ups after root canal preparation with Mtwo NiTi rotary system]. Shanghai Kou Qiang Yi Xue; 2011 Aug;20(4):398-400
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] [Analysis of interappointment flare-ups after root canal preparation with Mtwo NiTi rotary system].
  • PURPOSE: To study the interappointment flare-ups after root canal preparation with Mtwo NiTi rotary system and explore the influence factors.
  • One group was treated with Mtwo NiTi rotary system while the other was treated with K file, the interappointment flare-ups after root canal preparation was compared between the 2 groups.
  • RESULTS: Less flare-ups occurred in the group of root canal preparation with NiTi rotary system, the difference was statistically significant (P=0.027).
  • CONCLUSIONS: Root canal preparation with Mtwo NiTi rotary system could decrease the flare-ups after root canal therapy.

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  • (PMID = 21909606.001).
  • [ISSN] 1006-7248
  • [Journal-full-title] Shanghai kou qiang yi xue = Shanghai journal of stomatology
  • [ISO-abbreviation] Shanghai Kou Qiang Yi Xue
  • [Language] chi
  • [Publication-type] English Abstract; Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] China
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9. |||||||||. 104%  Bürklein S, Tsotsis P, Schäfer E: Incidence of dentinal defects after root canal preparation: reciprocating versus rotary instrumentation. J Endod; 2013 Apr;39(4):501-4
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Incidence of dentinal defects after root canal preparation: reciprocating versus rotary instrumentation.
  • INTRODUCTION: The purpose of this study was to evaluate the incidence of dentinal defects after root canal preparation with reciprocating instruments (Reciproc and WaveOne) and rotary instruments.
  • The root canals were instrumented by using the reciprocating single-file systems Reciproc and WaveOne and the full-sequence rotary Mtwo and ProTaper instruments.
  • All canal preparation created dentinal defects.
  • CONCLUSIONS: Under the conditions of this study, root canal preparation with both rotary and reciprocating instruments resulted in dentinal defects.
  • [MeSH-major] Dental Instruments / adverse effects. Dentin / injuries. Root Canal Preparation / instrumentation

  • HSDB. structure - NICKEL, ELEMENTAL.
  • HSDB. structure - TITANIUM.
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  • [Copyright] Copyright © 2013 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.
  • (PMID = 23522545.001).
  • [ISSN] 1878-3554
  • [Journal-full-title] Journal of endodontics
  • [ISO-abbreviation] J Endod
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 12035-60-8 / titanium nickelide; 7OV03QG267 / Nickel; D1JT611TNE / Titanium
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10. |||||||||. 104%  Parirokh M, Jalali S, Haghdoost AA, Abbott PV: Comparison of the effect of various irrigants on apically extruded debris after root canal preparation. J Endod; 2012 Feb;38(2):196-9
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Comparison of the effect of various irrigants on apically extruded debris after root canal preparation.
  • The aim was to quantitatively compare the amount of debris extruded apically from root canals when 3 different irrigants were used during canal preparation with rotary instruments.
  • METHODS: Ninety-one extracted single-rooted human mandibular premolar teeth with straight root canals were used.
  • Hero 642 instruments were used for root canal preparation in all teeth, and 3 different irrigants were used (group 2, 2% chlorhexidine; group 3, 5.25% sodium hypochlorite; group 4, 2.5% sodium hypochlorite).
  • Debris extruded from the apical foramen during root canal preparation was collected into preweighed Eppendorf tubes.
  • [MeSH-major] Dental Pulp Cavity / pathology. Extravasation of Diagnostic and Therapeutic Materials / etiology. Root Canal Irrigants / administration & dosage. Root Canal Preparation / methods. Tooth Apex / pathology

  • HSDB. structure - CHLORHEXIDINE.
  • HSDB. structure - SODIUM HYPOCHLORITE.
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  • [Copyright] Copyright © 2012 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.
  • (PMID = 22244635.001).
  • [ISSN] 1878-3554
  • [Journal-full-title] Journal of endodontics
  • [ISO-abbreviation] J Endod
  • [Language] eng
  • [Publication-type] Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Root Canal Irrigants; DY38VHM5OD / Sodium Hypochlorite; R4KO0DY52L / Chlorhexidine
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11. |||||||||. 104%  Rhodes SC, Hülsmann M, McNeal SF, Beck P, Eleazer PD: Comparison of root canal preparation using reciprocating Safesiders stainless steel and Vortex nickel-titanium instruments. Oral Surg Oral Med Oral Pathol Oral Radiol Endod; 2011 May;111(5):659-67
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Comparison of root canal preparation using reciprocating Safesiders stainless steel and Vortex nickel-titanium instruments.
  • OBJECTIVE: The aim of the present study was to assess several parameters related to the clinical usage of 2 root canal preparation instruments: Vortex .06 rotary nickel-titanium instruments, and Safesiders reciprocating stainless steel instruments.
  • STUDY DESIGN: Fifty extracted mandibular molars with mesial root canal curvatures between 20° and 50° were divided into 2 groups and embedded in acrylic resin inside a modified Bramante muffle system.
  • All root canals were prepared to ISO size 40 using either Vortex .06 rotary nickel-titanium-instruments in a low-torque motor or Safesiders stainless steel instruments in a proprietary reciprocating handpiece.
  • The following parameters were evaluated: straightening of curved root canals, working safety issues (perforations, instrument breakages, canal blockages, loss of working length), postpreparation root canal cross-section, and working time.
  • RESULTS: The Vortex .06 instruments maintained canal curvatures well, with the mean degree of straightening recorded as 0.72°.
  • Safesiders instruments demonstrated significantly more canal straightening, with the mean degree of straightening recorded as 15.5°.
  • More than 90% of the root canals prepared with the Vortex .06 instruments resulted in a round or oval cross-section, whereas the Safesiders instruments produced round or oval cross-sections 60% of the time.
  • Neither of the 2 instruments could effectively prepare 100% of the root canal circumference.
  • CONCLUSIONS: Vortex .06 maintained the original root canal curvatures well, whereas Safesiders instruments demonstrated significant straightening and irregular preparation shapes when used in sizes larger than ISO 20.
  • Preparation of the complete circumference of the root canal was not possible with either system.
  • [MeSH-major] Dental Instruments. Root Canal Preparation / instrumentation

  • HSDB. structure - NICKEL, ELEMENTAL.
  • HSDB. structure - TITANIUM.
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  • [Copyright] Copyright © 2011 Mosby, Inc. All rights reserved.
  • (PMID = 21411348.001).
  • [ISSN] 1528-395X
  • [Journal-full-title] Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics
  • [ISO-abbreviation] Oral Surg Oral Med Oral Pathol Oral Radiol Endod
  • [Language] eng
  • [Publication-type] Comparative Study; Evaluation Studies; Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Dental Alloys; 12035-60-8 / titanium nickelide; 12597-68-1 / Stainless Steel; 7OV03QG267 / Nickel; D1JT611TNE / Titanium
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12. |||||||||. 104%  Paqué F, Ganahl D, Peters OA: Effects of root canal preparation on apical geometry assessed by micro-computed tomography. J Endod; 2009 Jul;35(7):1056-9
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Effects of root canal preparation on apical geometry assessed by micro-computed tomography.
  • INTRODUCTION: Previous micro-computed tomography analyses of root canal preparation provided data that were usually averaged over canal length.
  • The aim of this study was to compare preparation effects on apical root canal geometry.
  • Teeth were scanned by using micro-computed tomography before and after canal shaping with FlexMaster, GT-Rotary, Lightspeed, ProFile, ProTaper, instruments or nickel-titanium K-files for hand instrumentation.
  • Apical preparation was to a size #40 in mesiobuccal and distobuccal and #45 in palatal canals except for GT (#20) and ProTaper (#25 in mesiobuccal and distobuccal and #30 in palatal canals, respectively).
  • Data for canal volume changes, the structure model index (quantifying canal cross sections), and untreated surface area were contrasted by using analysis of variance and Scheffé tests.
  • RESULTS: Mean mesiobuccal, distobuccal, and palatal canal volumes increased after preparation (P < .05), but differences were noted for preparation techniques.
  • All canals were slightly rounder in the apical 4 mm after preparation indicated by nonsignificant increases in structure model index.
  • Preparation with GT left significantly larger untreated areas in all canal types (P < .05); among root canal types, distobuccal canals had the least amounts of untreated surface areas.
  • CONCLUSIONS: Apical canal geometry was affected differently by 6 preparation techniques; preparations with GT instruments to an apical size #20 left more canal surface untouched, which might affect the ability to disinfect root canals in maxillary molars.
  • [MeSH-major] Root Canal Preparation / instrumentation. Tooth Apex / anatomy & histology. Tooth Apex / radiography

  • HSDB. structure - NICKEL, ELEMENTAL.
  • HSDB. structure - TITANIUM.
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  • (PMID = 19567334.001).
  • [ISSN] 1878-3554
  • [Journal-full-title] Journal of endodontics
  • [ISO-abbreviation] J Endod
  • [Language] eng
  • [Publication-type] Comparative Study; Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Dental Alloys; 12035-60-8 / titanium nickelide; 7OV03QG267 / Nickel; D1JT611TNE / Titanium
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13. |||||||||. 103%  Barreto MS, Moraes Rdo A, Rosa RA, Moreira CH, Só MV, Bier CA: Vertical root fractures and dentin defects: effects of root canal preparation, filling, and mechanical cycling. J Endod; 2012 Aug;38(8):1135-9
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Vertical root fractures and dentin defects: effects of root canal preparation, filling, and mechanical cycling.
  • INTRODUCTION: The aim of this study was to evaluate the ex vivo effects of root canal preparation, filling techniques, and mechanical cycling (MC) on the incidence of dentin defects and vertical root fractures (VRFs).
  • The other groups were prepared by using Gates Glidden drills and ProTaper Universal files up to F3 and were grouped according to the following: prepared teeth and the absence of root canal filling, passive technique, lateral compaction, and Tagger's hybrid technique.
  • The defects were categorized as no defect, vertical root fracture, and other defects.
  • [MeSH-major] Dentin / injuries. Root Canal Obturation / adverse effects. Root Canal Preparation / adverse effects. Tooth Fractures / etiology. Tooth Root / injuries
  • [MeSH-minor] Bisphenol A-Glycidyl Methacrylate / chemistry. Composite Resins / chemistry. Dental Materials / chemistry. Dental Stress Analysis / instrumentation. Dentin-Bonding Agents / chemistry. Edetic Acid / therapeutic use. Epoxy Resins / therapeutic use. Equipment Design. Gutta-Percha / therapeutic use. Humans. Humidity. Root Canal Filling Materials / therapeutic use. Root Canal Irrigants / therapeutic use. Sodium Hypochlorite / therapeutic use. Stress, Mechanical. Temperature. Time Factors. Tooth Apex / pathology

  • HSDB. structure - ETHYLENEDIAMINE TETRAACETIC ACID.
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  • [Copyright] Copyright © 2012 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.
  • (PMID = 22794222.001).
  • [ISSN] 1878-3554
  • [Journal-full-title] Journal of endodontics
  • [ISO-abbreviation] J Endod
  • [Language] eng
  • [Publication-type] Comparative Study; Journal Article; Randomized Controlled Trial
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Composite Resins; 0 / Dental Materials; 0 / Dentin-Bonding Agents; 0 / Epoxy Resins; 0 / Root Canal Filling Materials; 0 / Root Canal Irrigants; 0 / epoxy resin-based root canal sealer; 0 / filtek Z350; 0 / single bond; 454I75YXY0 / Bisphenol A-Glycidyl Methacrylate; 9000-32-2 / Gutta-Percha; 9G34HU7RV0 / Edetic Acid; DY38VHM5OD / Sodium Hypochlorite
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14. |||||||||. 102%  De-Deus G, Silva EJ, Marins J, Souza E, Neves Ade A, Gonçalves Belladonna F, Alves H, Lopes RT, Versiani MA: Lack of causal relationship between dentinal microcracks and root canal preparation with reciprocation systems. J Endod; 2014 Sep;40(9):1447-50
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  • [Title] Lack of causal relationship between dentinal microcracks and root canal preparation with reciprocation systems.
  • INTRODUCTION: This study aimed to evaluate the frequency of dentinal microcracks observed after root canal preparation with 2 reciprocating and a conventional full-sequence rotary system using micro-computed tomographic analysis.
  • METHODS: Thirty mesial roots of mandibular molars presenting a type II Vertucci canal configuration were scanned at an isotropic resolution of 14.16 μm.
  • The sample was randomly assigned to 3 experimental groups (n = 10) according to the system used for the root canal preparation: group A-Reciproc (VDW, Munich, Germany), group B-WaveOne (Dentsply Maillefer, Baillagues, Switzerland), and group C-BioRaCe (FKG Dentaire, La-Chaux-de-Fonds, Switzerland).
  • Second and third scans were taken after the root canals were prepared with instruments sizes 25 and 40, respectively.
  • CONCLUSIONS: No causal relationship between dentinal microcrack formation and canal preparation procedures with Reciproc, WaveOne, and BioRaCe systems was observed.

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  • [Copyright] Copyright © 2014 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.
  • (PMID = 25146030.001).
  • [ISSN] 1878-3554
  • [Journal-full-title] Journal of endodontics
  • [ISO-abbreviation] J Endod
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
  • [Keywords] NOTNLM ; Dentinal microcracks / micro–computed tomography scan / reciprocating motion / root canal preparation / rotary system
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15. |||||||||. 93%  Nordmeyer S, Schnell V, Hülsmann M: Comparison of root canal preparation using Flex Master Ni-Ti and Endo-Eze AET stainless steel instruments. Oral Surg Oral Med Oral Pathol Oral Radiol Endod; 2011 Feb;111(2):251-9
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Comparison of root canal preparation using Flex Master Ni-Ti and Endo-Eze AET stainless steel instruments.
  • OBJECTIVE: The aim of this study was to compare various parameters of root canal preparation using FlexMaster rotary nickel-titanium and Endo-Eze AET stainless steel instruments.
  • STUDY DESIGN: Fifty curved mesial root canals of extracted mandibular molars were prepared to size 45 using FlexMaster or AET instruments.
  • The following parameters were evaluated: straightening of root canal curvature, postoperative root canal cross-sections, cleaning ability, safety issues, and working time.
  • CONCLUSIONS: AET cannot be recommended for preparation of curved root canals, owing to unacceptable straightening.
  • [MeSH-major] Dental Instruments. Dental Pulp Cavity / anatomy & histology. Equipment Design. Root Canal Preparation / instrumentation. Smear Layer

  • HSDB. structure - NICKEL, ELEMENTAL.
  • HSDB. structure - TITANIUM.
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  • [Copyright] Copyright © 2011 Mosby, Inc. All rights reserved.
  • (PMID = 21167758.001).
  • [ISSN] 1528-395X
  • [Journal-full-title] Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics
  • [ISO-abbreviation] Oral Surg Oral Med Oral Pathol Oral Radiol Endod
  • [Language] eng
  • [Publication-type] Comparative Study; Evaluation Studies; Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Dental Alloys; 12035-60-8 / titanium nickelide; 12597-68-1 / Stainless Steel; 7OV03QG267 / Nickel; D1JT611TNE / Titanium
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16. |||||||||. 92%  Inamoto K, Horiba N, Senda S, Naitoh M, Ariji E, Senda A, Nakamura H: Possibility of root canal preparation by Er:YAG laser. Oral Surg Oral Med Oral Pathol Oral Radiol Endod; 2009 Jan;107(1):e47-55
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Possibility of root canal preparation by Er:YAG laser.
  • OBJECTIVE: The purpose of this study was to evaluate the cutting efficiency and morphological changes of root dentin irradiated by an Er:YAG laser in vitro.
  • STUDY DESIGN: Thirty-two root dentin blocks were divided into 4 groups.
  • CONCLUSION: These results show that the Er:YAG laser operated under the conditions used in this study is an effective tool for root canal preparation.
  • [MeSH-major] Dentin / surgery. Laser Therapy. Lasers, Solid-State. Root Canal Preparation / instrumentation

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  • (PMID = 19101483.001).
  • [ISSN] 1528-395X
  • [Journal-full-title] Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics
  • [ISO-abbreviation] Oral Surg Oral Med Oral Pathol Oral Radiol Endod
  • [Language] eng
  • [Publication-type] Evaluation Studies; Journal Article
  • [Publication-country] United States
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17. |||||||||. 91%  Wang Y, Zhu YQ, Wang HN, Han JL, He Y, Zhu MY: [Clinical effect of three kinds of rotary nickel-titanium instruments on root canal preparation of molars]. Shanghai Kou Qiang Yi Xue; 2010 Apr;19(2):118-23
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] [Clinical effect of three kinds of rotary nickel-titanium instruments on root canal preparation of molars].
  • PURPOSE: To evaluate three kinds of nickel-titanium instruments applied to molar root canal preparation.
  • METHODS: A total of 90 molars treated by root canal therapy were randomly assigned to three groups: ProTaper group.
  • Crown-down technique was used in ProTaper and K3 group, while Mtwo group was treated with routine preparation technique.
  • Wearing and tearing degree of equipment, preparation time and postoperative complications incidence of 3 groups were also compared.
  • Data of root canal curvatures and preparation time was compared using t test; the incidence of complications of root canal treatment and postoperative pain was analyzed using Chi-square test.
  • RESULTS: In three groups, root canals had no deviation or no ledge, could maintain the root canal anatomy in early form, and achieved good preparation results.
  • The average root canal preparation time of the Mtwo group was 3.94 min, significantly less than the ProTaper (4.71 min) group and the K3(4.58 min) group.
  • CONCLUSIONS: Three rotary nickel-titanium systems tested in this study are effective in the molar root canal preparation.
  • The Mtwo instrument is much easier and faster during preparation with routine preparation technique.Supported by Research Fund of Science and Technology Commission of Shanghai Municipality(Grant No.08DZ2271100).

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  • (PMID = 20485969.001).
  • [ISSN] 1006-7248
  • [Journal-full-title] Shanghai kou qiang yi xue = Shanghai journal of stomatology
  • [ISO-abbreviation] Shanghai Kou Qiang Yi Xue
  • [Language] chi
  • [Publication-type] English Abstract; Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] China
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18. |||||||||. 88%  Capar ID, Ertas H, Ok E, Arslan H, Ertas ET: Comparative study of different novel nickel-titanium rotary systems for root canal preparation in severely curved root canals. J Endod; 2014 Jun;40(6):852-6
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Comparative study of different novel nickel-titanium rotary systems for root canal preparation in severely curved root canals.
  • INTRODUCTION: We compared the effects of 6 different rotary systems on transportation, canal curvature, centering ratio, surface area, and volumetric changes of curved mesial root canals of mandibular molar via cone-beam computed tomographic (CBCT) imaging.
  • METHODS: Mesiobuccal root canals of 120 mandibular first molars with an angle of curvature ranging from 20°-40° were divided into 6 groups of 20 canals.
  • Based on CBCT images taken before instrumentation, the groups were balanced with respect to the angle and radius of canal curvature.
  • Root canals were shaped with the following systems with an apical size of 25: OneShape (OS) (MicroMega, Besancon, France), ProTaper Universal (PU) F2 (Dentsply Maillefer, Ballaigues, Switzerland), ProTaper Next X2 (Dentsply Maillefer), Reciproc (R) R25 (VDW, Munich, Germany), Twisted File Adaptive (TFA) SM2 (SybronEndo, Orange, CA), and WaveOne primary (Dentsply Tulsa Dental Specialties, Tulsa, OK).
  • After root canal preparation, changes were assessed with CBCT imaging.
  • There was no significant difference among the 6 groups in transportation, canal curvature, changes of surface area, and centering ratio after instrumentation.
  • CONCLUSIONS: The 6 different file systems straightened root canal curvature similarly and produced similar canal transportation in the preparation of mesial canals of mandibular molars.

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  • [Copyright] Copyright © 2014 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.
  • (PMID = 24862716.001).
  • [ISSN] 1878-3554
  • [Journal-full-title] Journal of endodontics
  • [ISO-abbreviation] J Endod
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
  • [Keywords] NOTNLM ; Cone-beam computed tomographic imaging / OneShape / ProTaper Next / ProTaper Universal / Reciproc / Twisted File Adaptive / WaveOne / root canal transportation / root canal volume
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19. ||||||||.. 84%  de Alencar AH, Dummer PM, Oliveira HC, Pécora JD, Estrela C: Procedural errors during root canal preparation using rotary NiTi instruments detected by periapical radiography and cone beam computed tomography. Braz Dent J; 2010;21(6):543-9
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  • [Title] Procedural errors during root canal preparation using rotary NiTi instruments detected by periapical radiography and cone beam computed tomography.
  • This study detected procedural errors created by rotary nickel-titanium (NiTi) instruments during root canal preparation by two imaging methods.
  • Periapical radiographs (PR) and cone beam computed tomography (CBCT) images were obtained and two examiners, who evaluated them to verify the occurrence of procedural errors (fractured instruments, perforations, and canal transportation).
  • In view of the low incidence of procedural errors during root canal preparation performed by students the introduction of rotary NiTi instruments has potential in undergraduate teaching.
  • PR and CBCT permitted the detection of procedural errors, but the CBCT images offer more recourse for diagnosis.
  • [MeSH-major] Medical Errors. Root Canal Preparation / adverse effects. Root Canal Preparation / instrumentation
  • [MeSH-minor] Chi-Square Distribution. Cone-Beam Computed Tomography. Dental Alloys. Dental Instruments / adverse effects. Dental Pulp Cavity / radiography. Dentists. Humans. Molar. Nickel. Radiography, Dental / methods. Root Canal Obturation. Students, Dental. Titanium

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  • (PMID = 21271046.001).
  • [ISSN] 1806-4760
  • [Journal-full-title] Brazilian dental journal
  • [ISO-abbreviation] Braz Dent J
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] Brazil
  • [Chemical-registry-number] 0 / Dental Alloys; 12035-60-8 / titanium nickelide; 7OV03QG267 / Nickel; D1JT611TNE / Titanium
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20. ||||||||.. 83%  Ling J: [Difficulties in controlling root canal infection and a new concept of three-dimensional root canal preparation]. Hua Xi Kou Qiang Yi Xue Za Zhi; 2013 Jun;31(3):221-4
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  • [Title] [Difficulties in controlling root canal infection and a new concept of three-dimensional root canal preparation].
  • Successful endodontic treatment depends on the effectiveness of the cleaning and shaping of the root canal system.
  • Due to the complexity of the structure of root canal system and the particularity of root canal infections, the equipment and technology currently available for root canal preparation hinder the ability to adequately clean and shape the root canal system.
  • In this review, we summarized the difficulties in the control of root canal infection, the new concept of three-dimensional root canal preparation, and its quality control and assessment.

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  • (PMID = 23841287.001).
  • [ISSN] 1000-1182
  • [Journal-full-title] Hua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology
  • [ISO-abbreviation] Hua Xi Kou Qiang Yi Xue Za Zhi
  • [Language] chi
  • [Publication-type] English Abstract; Journal Article
  • [Publication-country] China
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21. ||||||||.. 81%  Farid H, Khan FR, Rahman M: ProTaper rotary instrument fracture during root canal preparation: a comparison between rotary and hybrid techniques. Oral Health Dent Manag; 2013 Mar;12(1):50-5
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] ProTaper rotary instrument fracture during root canal preparation: a comparison between rotary and hybrid techniques.
  • AIMS: This study aimed to compare the frequency of ProTaper rotary instrument fracture with rotary (conventional) and hybrid (rotary and hand files) canal preparation techniques.
  • Secondary objectives were to determine whether there was an association of ProTaper file fracture with the canal curvature and to compare the mean time required for canal preparation in the two techniques.
  • After creating an access cavity and a glide path for each canal, a periapical radiograph was taken and the canal curvature was measured with Schneider's technique.
  • The length of ProTaper files were measured before and after each canal preparation.
  • Time taken for each canal preparation was recorded.
  • The mean time taken for preparation of the root canals was 104.04 sec (± 55.7 sec) in Group A versus 122.88 sec (± 41.67 sec) in Group B (P=0.007).
  • CONCLUSION: In the teeth studied, the hybrid technique of root canal preparation with ProTaper rotary files, although time consuming, was safer in canals having a curvature greater than 25 degrees.
  • [MeSH-major] Root Canal Preparation / instrumentation
  • [MeSH-minor] Adolescent. Adult. Dental Alloys / chemistry. Dental Pulp Cavity / pathology. Dental Pulp Cavity / radiography. Edetic Acid / administration & dosage. Equipment Failure. Equipment Failure Analysis. Humans. Materials Testing. Molar / pathology. Molar / radiography. Nickel / chemistry. Radiography, Bitewing. Root Canal Irrigants / administration & dosage. Rotation. Sodium Hypochlorite / administration & dosage. Stainless Steel / chemistry. Time Factors. Titanium / chemistry. Tooth Apex / pathology. Tooth Apex / radiography. Young Adult

  • HSDB. structure - ETHYLENEDIAMINE TETRAACETIC ACID.
  • HSDB. structure - NICKEL, ELEMENTAL.
  • HSDB. structure - TITANIUM.
  • HSDB. structure - SODIUM HYPOCHLORITE.
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  • (PMID = 23474581.001).
  • [ISSN] 2247-2452
  • [Journal-full-title] Oral health and dental management
  • [ISO-abbreviation] Oral Health Dent Manag
  • [Language] eng
  • [Publication-type] Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't
  • [Publication-country] Romania
  • [Chemical-registry-number] 0 / Dental Alloys; 0 / Root Canal Irrigants; 12035-60-8 / titanium nickelide; 12597-68-1 / Stainless Steel; 7OV03QG267 / Nickel; 9G34HU7RV0 / Edetic Acid; D1JT611TNE / Titanium; DY38VHM5OD / Sodium Hypochlorite
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22. ||||||||.. 81%  Rippe MP, Santini MF, Bier CA, Baldissara P, Valandro LF: Effect of root canal preparation, type of endodontic post and mechanical cycling on root fracture strength. J Appl Oral Sci; 2014 Jun;22(3):165-73
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  • [Title] Effect of root canal preparation, type of endodontic post and mechanical cycling on root fracture strength.
  • OBJECTIVE: To evaluate the impact of the type of root canal preparation, intraradicular post and mechanical cycling on the fracture strength of roots.
  • MATERIAL AND METHODS: eighty human single rooted teeth were divided into 8 groups according to the instruments used for root canal preparation (manual or rotary instruments), the type of intraradicular post (fiber posts- FRC and cast post and core- CPC) and the use of mechanical cycling (MC) as follows: Manual and FRC; Manual, FRC and MC; Manual and CPC; Manual, CPC and MC; Rotary and FRC; Rotary, FRC and MC; Rotary and CPC; Rotary, CPC and MC.
  • All root canals were prepared for a post with a 10 mm length, using the custom #2 bur of the glass fiber post system.
  • RESULTS: The 3-way ANOVA showed that the root canal preparation strategy (p<0.03) and post type (p<0.0001) affected the fracture strength results, while mechanical cycling (p=0.29) did not.
  • CONCLUSION: The root canal preparation strategy only influenced the root fracture strength when restoring with a fiber post and mechanical cycling, so it does not seem to be an important factor in this scenario.

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  • (PMID = 25025556.001).
  • [ISSN] 1678-7765
  • [Journal-full-title] Journal of applied oral science : revista FOB
  • [ISO-abbreviation] J Appl Oral Sci
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] Brazil
  • [Other-IDs] NLM/ PMC4072266
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23. ||||||||.. 81%  Adorno CG, Yoshioka T, Suda H: The effect of working length and root canal preparation technique on crack development in the apical root canal wall. Int Endod J; 2010 Apr;43(4):321-7
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] The effect of working length and root canal preparation technique on crack development in the apical root canal wall.
  • AIM: To evaluate the effects of working length and root canal preparation technique on crack development in the apical root canal wall.
  • METHODOLOGY: Seventy extracted mandibular premolars were mounted in a resin block with simulated periodontal ligaments and divided into seven groups according to preparation technique and working length: group A, step-back preparation with stainless steel files with working length set at the apical foramen and defined as root canal length (CL); group B, same as for A, except that the working length was CL-1 mm; group C, crown-down preparation with Profile instruments followed by an apical enlargement sequence with CL as working length and group D, same as for C, except that the working length was CL-1 mm.
  • Digital images of the apical root surface (AS) were recorded before preparation, immediately after instrumentation and after removing the apical 1 mm (AS-1 mm) and 2 mm (AS-2 mm) of the root end.
  • Preparation technique significantly affected crack development at AS-1 mm (P < 0.05).
  • At AS-2 mm, there was no significant difference between preparation technique and working length in terms of crack development on the canal wall.
  • CONCLUSION: Root canal preparation alone, regardless of the technique used, can potentially generate cracks on the apical root canal wall as well as the apical surface.
  • [MeSH-major] Root Canal Preparation / methods. Tooth Apex / injuries. Tooth Fractures / etiology

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  • (PMID = 20487452.001).
  • [ISSN] 1365-2591
  • [Journal-full-title] International endodontic journal
  • [ISO-abbreviation] Int Endod J
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] England
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24. ||||||||.. 80%  Moore J, Fitz-Walter P, Parashos P: A micro-computed tomographic evaluation of apical root canal preparation using three instrumentation techniques. Int Endod J; 2009 Dec;42(12):1057-64
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] A micro-computed tomographic evaluation of apical root canal preparation using three instrumentation techniques.
  • AIM: To investigate the morphological changes in the apical third of the root canal after preparation with three techniques.
  • METHODOLOGY: Forty molar teeth were scanned using micro-computed tomography before and after instrumentation with: Group 1 - stainless steel K-files using the balanced force technique; Group 2 - stainless steel K-files (balanced force) and then refining the apical preparation with the equivalent size 0.04 taper FlexMaster instrument; Group 3 - a hybrid ProTaper/FlexMaster (ProFile for sizes 45 and 60) sequence.
  • Apical root canal preparation was evaluated with respect to the amount of dentine removed, canal roundness, transportation and how the dimensions of the prepared apical root canal correlated with those of the final instrument used.
  • RESULTS: The median apical preparation sizes for the three groups respectively were: 30, 30 and 40.
  • Despite the larger size and less experienced operator, the volumetric change (the amount of dentine removed) in canals prepared with a hybrid rotary nickel-titanium instrumentation technique remained small and, a more rounded preparation (P < 0.001) that closely matched the final instrument dimensions (P < 0.001) was produced.
  • There was a trend for less canal transportation using rotary nickel-titanium instruments.
  • CONCLUSIONS: Stainless steel hand preparation was not conservative of apical dentine.
  • When used correctly, even by less experienced operators, rotary nickel-titanium instruments were able to precisely 'machine' a canal to larger apical sizes with minimal risk of iatrogenic damage.
  • [MeSH-major] Dental Instruments. Dental Pulp Cavity / radiography. Root Canal Preparation / instrumentation. Root Canal Preparation / methods. Tooth Apex / radiography

  • HSDB. structure - NICKEL, ELEMENTAL.
  • HSDB. structure - TITANIUM.
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  • [CommentIn] Int Endod J. 2010 May;43(5):451-2; author reply 453 [20518940.001]
  • (PMID = 19912375.001).
  • [ISSN] 1365-2591
  • [Journal-full-title] International endodontic journal
  • [ISO-abbreviation] Int Endod J
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] England
  • [Chemical-registry-number] 0 / Dental Alloys; 12035-60-8 / titanium nickelide; 12597-68-1 / Stainless Steel; 7OV03QG267 / Nickel; D1JT611TNE / Titanium
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25. ||||||||.. 80%  Alves Vde O, Bueno CE, Cunha RS, Pinheiro SL, Fontana CE, de Martin AS: Comparison among manual instruments and PathFile and Mtwo rotary instruments to create a glide path in the root canal preparation of curved canals. J Endod; 2012 Jan;38(1):117-20
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Comparison among manual instruments and PathFile and Mtwo rotary instruments to create a glide path in the root canal preparation of curved canals.
  • INTRODUCTION: Nickel-titanium rotary instruments reduce procedural errors and the time required to finish root canal preparation.
  • The goal of this study was to evaluate the occurrences of apical transportation and canal aberrations produced with different instruments used to create a glide path in the preparation of curved root canals, namely manual K-files (Dentsply Maillefer, Ballaigues, Switzerland) and PathFile (Dentsply Maillefer) and Mtwo (Sweden and Martina, Padua, Italy) nickel-titanium rotary files.
  • The specimens were divided randomly into 3 groups with 15 canals each, and canal preparation was performed by an endodontist using #10-15-20 K-type stainless steel manual files (group M), #13-16-19 PathFile rotary instruments (group PF), and #10-15-20 Mtwo rotary instruments (group MT).
  • The double digital radiograph technique was used, pre- and postinstrumentation, to assess whether apical transportation and/or aberration in root canal morphology occurred.
  • RESULTS: No apical transportation or aberration in root canal morphology occurred in any of the teeth; therefore, no statistical analysis was conducted.
  • CONCLUSIONS: Neither the manual instruments nor the PathFile or Mtwo rotary instruments used to create a glide path had any influence on the occurrence of apical transportation or produced any canal aberration.
  • [MeSH-major] Dental Pulp Cavity / anatomy & histology. Root Canal Preparation / instrumentation. Tooth Apex / anatomy & histology

  • HSDB. structure - NICKEL, ELEMENTAL.
  • HSDB. structure - TITANIUM.
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  • [Copyright] Copyright © 2012 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.
  • (PMID = 22152634.001).
  • [ISSN] 1878-3554
  • [Journal-full-title] Journal of endodontics
  • [ISO-abbreviation] J Endod
  • [Language] eng
  • [Publication-type] Comparative Study; Journal Article; Randomized Controlled Trial
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Dental Alloys; 12035-60-8 / titanium nickelide; 12597-68-1 / Stainless Steel; 7OV03QG267 / Nickel; D1JT611TNE / Titanium
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26. ||||||||.. 78%  Jiang YT, Xia WW, Liang JP, Ma SF, Yan PF: [Quantitative evaluation of residual endodontic microorganisms after mechanical root canal preparation different chemical preparations by real-time PCR]. Shanghai Kou Qiang Yi Xue; 2009 Feb;18(1):10-4
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  • [Title] [Quantitative evaluation of residual endodontic microorganisms after mechanical root canal preparation different chemical preparations by real-time PCR].
  • PURPOSE: To establish a quick, sensitive method for quantifying root canal flora and investigate the effects of different root canal preparations on the pathogenic bacteria at RNA level.
  • METHODS: A total of 24 single-rooted teeth with chronic apical periodontitis were selected and prepared using 3% H2O2 combined with 1% NaClO, EDTA combined with 3% H(2)O(2),1% NaClO, respectively,the samples were taken before and after root canal preparation.
  • After isolation of total RNA from the root canal samples, cDNA was synthesized by reverse transcription, and detected by real-time PCR.
  • RESULTS: The number of bacteria in the root canal reduced dramatically after mechanical preparation and irrigated using 3% H(2)O(2) and 1% NaClO(P<0.01).
  • CONCLUSIONS: Real-time PCR can be employed in the identification of bacteria flora in the root canal, both methods of root canal preparation can effectively reduce the number of bacteria flora.

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  • (PMID = 19290419.001).
  • [ISSN] 1006-7248
  • [Journal-full-title] Shanghai kou qiang yi xue = Shanghai journal of stomatology
  • [ISO-abbreviation] Shanghai Kou Qiang Yi Xue
  • [Language] chi
  • [Publication-type] English Abstract; Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] China
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27. |||||||... 74%  Machado ME, Sapia LA, Cai S, Martins GH, Nabeshima CK: Comparison of two rotary systems in root canal preparation regarding disinfection. J Endod; 2010 Jul;36(7):1238-40
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Comparison of two rotary systems in root canal preparation regarding disinfection.
  • INTRODUCTION: The aim of the present study was to determine the disinfection of preparations carried out by using the Protaper or MTwo system in canals infected with Enterococcus faecalis.
  • CONCLUSIONS: Both systems, ProTaper and Mtwo, reduced the amount of bacteria in the mechanical disinfection of the root canal system, demonstrating that they are suitable for this purpose.
  • [MeSH-major] Dental Pulp Cavity / microbiology. Disinfection / methods. Root Canal Preparation / methods

  • MedlinePlus Health Information. consumer health - Germs and Hygiene.
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  • [Copyright] Copyright 2010 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.
  • (PMID = 20630307.001).
  • [ISSN] 1878-3554
  • [Journal-full-title] Journal of endodontics
  • [ISO-abbreviation] J Endod
  • [Language] eng
  • [Publication-type] Comparative Study; Journal Article
  • [Publication-country] United States
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28. |||||||... 71%  Minas NH, Meister J, Franzen R, Gutknecht N, Lampert F, Mir M: In vitro preliminary study to evaluate the capability of Er,Cr:YSGG laser in posterior teeth root-canal preparation with step-back technique. Lasers Med Sci; 2009 Jan;24(1):7-12
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  • [Title] In vitro preliminary study to evaluate the capability of Er,Cr:YSGG laser in posterior teeth root-canal preparation with step-back technique.
  • This preliminary study was to investigate in vitro the Er,Cr:YSGG laser ablation capability, both range (enlargement aspects of laser tips corresponded to conventional endodontic files) and quality (removing of smear layer and opening of dentinal tubules) to clean and shape the root canal for final obturation step.
  • The results revealed that posterior root-canal preparation could be achieved by laser beam transmitted to the canal using endodontic tips.
  • Considering the results of this current study, laser-based root-canal preparation still shows certain limitations, and further improvements are mandatory for higher achievement and better preparation outcomes.
  • [MeSH-major] Lasers, Solid-State. Root Canal Preparation / methods

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  • (PMID = 18087764.001).
  • [ISSN] 0268-8921
  • [Journal-full-title] Lasers in medical science
  • [ISO-abbreviation] Lasers Med Sci
  • [Language] eng
  • [Publication-type] In Vitro; Journal Article
  • [Publication-country] England
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29. |||||||... 71%  Zhang L, Ji P, Fu X, Song X: [Residual dentin thickness in first premolars after root canal preparation]. Hua Xi Kou Qiang Yi Xue Za Zhi; 2011 Aug;29(4):361-4
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  • [Title] [Residual dentin thickness in first premolars after root canal preparation].
  • OBJECTIVE: The residual dentin thickness of first premolars were measured by anatomical methods before and after post preparation, the data from which can help clinicians to choose proper sizes of peeso drill.
  • Walls of 4 mm short of the apex were respectively measured before and after post preparation with peeso drills number 1-3.
  • For two-canal first maxillary premolars and single-canal first mandibular premolars, the average residual mesial and distal thickness of root walls 4 mm short of the apex were less than 1 mm after post preparation by number 3 peeso drill.
  • The buccal root had nonsignificant differences (P>0.05).
  • The palatine root and the first mandibular premolars had significant differences (P<0.05).
  • For single-canal first maxillary premolars, the average residual mesial and distal thickness were less than 1 mm after post preparation by number 2 peeso drill.
  • CONCLUSION: In post preparation, for the buccal root of two-canal maxillary premolars, the maximum size of peeso drill was number 3, and for the palatine root and first mandibular premolars, the size was number 2, and for single-canal maxillary first premolars, the size was number 1.

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  • (PMID = 21932653.001).
  • [ISSN] 1000-1182
  • [Journal-full-title] Hua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology
  • [ISO-abbreviation] Hua Xi Kou Qiang Yi Xue Za Zhi
  • [Language] chi
  • [Publication-type] English Abstract; Journal Article
  • [Publication-country] China
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30. |||||||... 71%  Gao MJ, Zhou J, Jiang XZ, Liang L: [Evaluation of the fracture of nickel-titanium rotary Protaper during root canal preparation]. Shanghai Kou Qiang Yi Xue; 2012 Jun;21(3):294-7
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] [Evaluation of the fracture of nickel-titanium rotary Protaper during root canal preparation].
  • PURPOSE: To assess clinical application of Nickel-titanium(NiTi) rotary instruments Protaper in preparation of curved root canals.
  • An analysis was carried out regarding the relationship between the broken files and canal distribution,degree of curvature of canals, and the relationship between amount of the broken files and the duration was also included.
  • RESULTS: A total of 43 kits files were used in the preparation of 281 curved root canals, and broken files often happened in canals with curvature of >30° and very complex canals.
  • CONCLUSIONS: The fracture of NiTi instruments is closely related to the anatomy of the root cana1.
  • With the use of NiTi rotary instruments Protaper, curved root canals can be prepared effectively.

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  • (PMID = 22885490.001).
  • [ISSN] 1006-7248
  • [Journal-full-title] Shanghai kou qiang yi xue = Shanghai journal of stomatology
  • [ISO-abbreviation] Shanghai Kou Qiang Yi Xue
  • [Language] chi
  • [Publication-type] English Abstract; Journal Article
  • [Publication-country] China
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31. |||||||... 68%  Metzger Z, Zary R, Cohen R, Teperovich E, Paqué F: The quality of root canal preparation and root canal obturation in canals treated with rotary versus self-adjusting files: a three-dimensional micro-computed tomographic study. J Endod; 2010 Sep;36(9):1569-73
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  • [Title] The quality of root canal preparation and root canal obturation in canals treated with rotary versus self-adjusting files: a three-dimensional micro-computed tomographic study.
  • AIM: The study was designed to quantitatively evaluate the quality of root canal preparation and root canal obturation in canals treated with either rotary or self adjusting files, using three-dimensional micro-computed tomographic (CT) analysis.
  • METHODOLOGY: Pair-matched root canals were instrumented with either rotary nickel-titanium files or self-adjusting files following the manufacturers' instructions.
  • The area of the canal wall unaffected by the preparation procedure was analyzed using before and after micro-CT images.
  • Root canal obturation was done using lateral compaction with gutta-percha and AH26 (Dentsply-DeTrey, Konstanz, Germany).
  • Teeth were scanned a third time, and the adaptation of the filling material to the canal walls was evaluated three-dimensionally by micro-CT analysis and the area of canal wall untouched by the filling was determined.
  • RESULTS: A high percentage of unaffected root canal walls (60% +/-14%) and areas untouched by the root canal filling (45% +/- 15%) were found in canals treated with rotary files.
  • CONCLUSION: Within the limitations of the present study, the self-adjusting files allowed better cleaning and shaping and better adaptation of the root canal filling than those allowed by rotary files.
  • [MeSH-major] Dental Marginal Adaptation / standards. Dental Pulp Cavity / radiography. Root Canal Obturation / instrumentation. Root Canal Preparation / instrumentation

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  • [Copyright] Copyright 2010 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.
  • (PMID = 20728729.001).
  • [ISSN] 1878-3554
  • [Journal-full-title] Journal of endodontics
  • [ISO-abbreviation] J Endod
  • [Language] eng
  • [Publication-type] Comparative Study; Evaluation Studies; Journal Article
  • [Publication-country] United States
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32. |||||||... 68%  Mehrvarzfar P, Abbott PV, Saghiri MA, Delvarani A, Asgar K, Lotfi M, Karamifar K, Kharazifard MJ, Khabazi H: Effects of three oral analgesics on postoperative pain following root canal preparation: a controlled clinical trial. Int Endod J; 2012 Jan;45(1):76-82
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  • [Title] Effects of three oral analgesics on postoperative pain following root canal preparation: a controlled clinical trial.
  • AIM:   To compare the effects of single doses of three oral medications on postoperative pain following instrumentation of root canals in teeth with irreversible pulpitis.
  • CONCLUSION:   A single oral dose of Naproxen, Novafen and Tramadol taken immediately after treatment reduced postoperative pain following pulpectomy and root canal preparation of teeth with irreversible pulpitis.
  • [MeSH-major] Analgesics / therapeutic use. Pain, Postoperative / prevention & control. Root Canal Preparation / adverse effects

  • HSDB. structure - ACETAMINOPHEN.
  • HSDB. structure - IBUPROFEN.
  • HSDB. structure - NAPROXEN.
  • HSDB. structure - TRAMADOL HYDROCHLORIDE.
  • HSDB. structure - CAFFEINE.
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  • [Copyright] © 2011 International Endodontic Journal.
  • (PMID = 21902704.001).
  • [ISSN] 1365-2591
  • [Journal-full-title] International endodontic journal
  • [ISO-abbreviation] Int Endod J
  • [Language] eng
  • [Publication-type] Comparative Study; Journal Article; Randomized Controlled Trial
  • [Publication-country] England
  • [Chemical-registry-number] 0 / Analgesics; 0 / Analgesics, Non-Narcotic; 0 / Analgesics, Opioid; 0 / Anti-Inflammatory Agents, Non-Steroidal; 0 / Drug Combinations; 0 / Placebos; 362O9ITL9D / Acetaminophen; 39J1LGJ30J / Tramadol; 3G6A5W338E / Caffeine; 57Y76R9ATQ / Naproxen; WK2XYI10QM / Ibuprofen
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33. |||||||... 68%  Versiani MA, Pécora JD, de Sousa-Neto MD: Flat-oval root canal preparation with self-adjusting file instrument: a micro-computed tomography study. J Endod; 2011 Jul;37(7):1002-7
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Flat-oval root canal preparation with self-adjusting file instrument: a micro-computed tomography study.
  • INTRODUCTION: The aim of this study was to evaluate the root canal preparation in flat-oval canals treated with either rotary or self-adjusting file (SAF) by using micro-tomography analysis.
  • METHODS: Forty mandibular incisors were scanned before and after root canal instrumentation with rotary instruments (n = 20) or SAF (n = 20).
  • Changes in canal volume, surface area, and cross-sectional geometry were compared with preoperative values.
  • In the coronal third, percentage of prepared root canal walls and mean increases of volume and area were significantly higher with SAF (92.0%, 1.44 ± 0.49 mm(3), 0.40 ± 0.14 mm(2), respectively) than rotary instrumentation (62.0%, 0.81 ± 0.45 mm(3), 0.23 ± 0.15 mm(2), respectively) (P < .05).
  • SAF removed dentin layer from all around the canal, whereas rotary instrumentation showed substantial untouched areas.
  • CONCLUSIONS: In the coronal third, mean increases of area and volume of the canal as well as the percentage of prepared walls were significantly higher with SAF than with rotary instrumentation.
  • The size of the SAF preparation in the apical third of the canal was equivalent to those prepared with #40 rotary file with a 0.02 taper.
  • [MeSH-major] Dental Instruments. Dental Pulp Cavity / anatomy & histology. Incisor / anatomy & histology. Root Canal Preparation / instrumentation

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  • [Copyright] Copyright © 2011 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.
  • (PMID = 21689560.001).
  • [ISSN] 1878-3554
  • [Journal-full-title] Journal of endodontics
  • [ISO-abbreviation] J Endod
  • [Language] eng
  • [Publication-type] Comparative Study; Journal Article
  • [Publication-country] United States
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34. ||||||.... 65%  Roper MJ, White JM, Goodis HE, Gekelman D: Two-dimensional changes and surface characteristics from an erbium laser used for root canal preparation. Lasers Surg Med; 2010 Jul;42(5):379-83
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Two-dimensional changes and surface characteristics from an erbium laser used for root canal preparation.
  • BACKGROUND AND OBJECTIVE: Erbium lasers have been advocated for use in root canal because of their ability to ablate dentin and remove biologic debris in the root canal space.
  • This study evaluated the ability of an Er:YAG laser to remove dentin predictably in the root canal system and its cleaning ability.
  • The second group used an Er:YAG laser with ceramic tip, above the dentin ablation threshold for root canal shaping.
  • RESULTS: The control group produced cleaner, better shaped root canals, faster than the Er:YAG group.
  • CONCLUSION: The Erbium laser studied was equivalent to rotary files in the coronal and middle thirds but not in the apical thirds of the root canal system.
  • [MeSH-major] Lasers, Solid-State. Root Canal Preparation / methods

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  • (PMID = 20583251.001).
  • [ISSN] 1096-9101
  • [Journal-full-title] Lasers in surgery and medicine
  • [ISO-abbreviation] Lasers Surg Med
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
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35. ||||||.... 64%  Chandra V, Gandi P, Shivanna AK, Srinivas S, Himgiri S, Nischith KG: A scanning electron microscopic study to evaluate the efficacy of NaviTip FX in removing the canal debris during root canal preparation: an in vitro study. J Contemp Dent Pract; 2013 Jul-Aug;14(4):653-6
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  • [Title] A scanning electron microscopic study to evaluate the efficacy of NaviTip FX in removing the canal debris during root canal preparation: an in vitro study.
  • OBJECTIVE: To evaluate the efficacy of NaviTip FX in removing the canal debris during root canal preparation using scanning electron microscopic study.
  • Standard endodontic access cavity preparations were performed.
  • For group 1, NaviTip FX (brush covered needle) was used to irrigate the canal with 5.25% sodium hypochlorite after each instrument use.
  • ProTaper rotary files were used for the canal preparation.
  • CONCLUSION: The NaviTip FX (brush covered needle) showed effectively better canal wall debris removal than the NaviTip (brushless needle).

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  • (PMID = 24309344.001).
  • [ISSN] 1526-3711
  • [Journal-full-title] The journal of contemporary dental practice
  • [ISO-abbreviation] J Contemp Dent Pract
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] India
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36. ||||||.... 63%  Manjunatha M, Annapurna K, Sudhakar V, Sunil Kumar V, Hiremath VK, Shah A: Smear Layer Evaluation on Root Canal Preparation with Manual and Rotary Techniques using EDTA as an Irrigant: A Scanning Electron Microscopy Study. J Int Oral Health; 2013 Feb;5(1):66-78
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  • [Title] Smear Layer Evaluation on Root Canal Preparation with Manual and Rotary Techniques using EDTA as an Irrigant: A Scanning Electron Microscopy Study.
  • INTRODUCTION: The aim of any root canal treatment is to achieve a canal free of micro organisms, residual pulp remnants, debris and smear layer for the long term success of the procedure.
  • Many authors focused on the preparation capabilities of various manual and rotary instruments but very few investigators stressed on the actual cleaning abilities of these instruments.
  • AIMS AND OBJECTIVES: This study was undertaken to evaluate the cleaning efficiency of manual K flex files and rotary Pro File systems in the root canals using a scanning electron microscope.
  • MATERIAL AND METHODS: Thirty single rooted mandibular first premolars were divided into two groups and randomized (the manual group-M and the ProFile group-P) with respect to the preparation technique.
  • The canal walls were quantitatively evaluated for the amount of debris and smear layer.
  • The apical, middle and coronal regions of the canal surface, were graded (1-5) for debris and smear layer.
  • It was concluded from this study that none of the instrumentation techniques employed, produced the canal walls which were free of surface debris and smear layer.
  • Smear Layer Evaluation on Root Canal Preparation with Manual and Rotary Techniques using EDTA as an Irrigant: A Scanning Electron Microscopy Study.

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  • (PMID = 24155580.001).
  • [ISSN] 0976-7428
  • [Journal-full-title] Journal of international oral health : JIOH
  • [ISO-abbreviation] J Int Oral Health
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] India
  • [Other-IDs] NLM/ PMC3768081
  • [Keywords] NOTNLM ; Clinical research / Oral Health / Tooth loss
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37. ||||||.... 62%  Milani AS, Froughreyhani M, Rahimi S, Jafarabadi MA, Paksefat S: The effect of root canal preparation on the development of dentin cracks. Iran Endod J; 2012;7(4):177-82
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  • [Title] The effect of root canal preparation on the development of dentin cracks.
  • INTRODUCTION: Root fracture is not an instant phenomenon but a result of gradual development of tiny craze lines in tooth structure.
  • Recent studies have shown that canal instrumentation has the potential to cause dentinal cracks.
  • CONCLUSION: Canal preparation, whether hand or rotary, produces structural defects in dentin.
  • The ProTaper rotary system when used according to the manufacturer's instructions, tends to produce fewer cracks and can be considered a safe preparation technique.

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  • (PMID = 23130076.001).
  • [ISSN] 2008-2746
  • [Journal-full-title] Iranian endodontic journal
  • [ISO-abbreviation] Iran Endod J
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] Iran
  • [Other-IDs] NLM/ PMC3487527
  • [Keywords] NOTNLM ; Instrumentation / Protaper Rotary System / Root Canal Preparation / Tooth Fractures
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38. ||||||.... 62%  Gao XJ, Xu WN: [Analysis of vertical root fracture with two different techniques of root canal preparation]. Shanghai Kou Qiang Yi Xue; 2012 Jun;21(3):321-4
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] [Analysis of vertical root fracture with two different techniques of root canal preparation].
  • PURPOSE: To investigate the relationship of vertical root fracture (VRF) after root canal treatment with two different technique of root canal shaping and provide clinical reference.
  • METHODS: 1702 teeth treated with root canal treatment during recent 2 years.
  • All teeth were divided into two groups according to different techniques of root canal shaping: 643 teeth were prepared with NiTi rotary preparation technique (NRPT) and 1059 teeth were prepared with stainless steel hand K-files preparation technique(SSPT).
  • RESULTS: There were 32 teeth with vertical root fracture, the VRF rate was 1.88%.
  • CONCLUSIONS: NiTi rotary preparation technique (NRPT) was closely related with vertical root fracture (VRF).
  • And the VRF risk would be even higher if the tooth underwent root canal retreatment case or a post-core was placed in the root canal.

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  • (PMID = 22885496.001).
  • [ISSN] 1006-7248
  • [Journal-full-title] Shanghai kou qiang yi xue = Shanghai journal of stomatology
  • [ISO-abbreviation] Shanghai Kou Qiang Yi Xue
  • [Language] chi
  • [Publication-type] English Abstract; Journal Article
  • [Publication-country] China
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39. ||||||.... 62%  Tang Z, Wang F, Mei L: [Effects of three different root canal preparation techniques on endodontic interappointment pain among the elderly]. Hua Xi Kou Qiang Yi Xue Za Zhi; 2013 Oct;31(5):493-5
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] [Effects of three different root canal preparation techniques on endodontic interappointment pain among the elderly].
  • OBJECTIVE: To study the clinical effects of three different root canal preparations on endodontic interappointment pain (EIAP) among the elderly.
  • Three root canal preparations were utilized for groups M, G, and H.

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  • (PMID = 24298801.001).
  • [ISSN] 1000-1182
  • [Journal-full-title] Hua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology
  • [ISO-abbreviation] Hua Xi Kou Qiang Yi Xue Za Zhi
  • [Language] chi
  • [Publication-type] English Abstract; Journal Article
  • [Publication-country] China
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40. |||||..... 55%  Peters OA, Boessler C, Paqué F: Root canal preparation with a novel nickel-titanium instrument evaluated with micro-computed tomography: canal surface preparation over time. J Endod; 2010 Jun;36(6):1068-72
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Root canal preparation with a novel nickel-titanium instrument evaluated with micro-computed tomography: canal surface preparation over time.
  • METHODS: Twenty maxillary incisors were scanned preoperatively at 20-microm resolution and postoperatively after up to 6 minutes of preparation with an SAF with 1.5-mm or 2-mm diameter.
  • Changes in canal volume compared with preoperative values as well as unprepared canal surface area were determined.
  • RESULTS: Preoperatively canal volumes were statistically similar in both groups (9.86 +/- 3.97 mm3 and 9.80 +/- 2.67 mm3).
  • Volumes increased during preparation to 13.58 +/- 3.85 mm3 (after 6 minutes with SAF 1.5 mm) and 16.43 +/- 3.64 mm3 (after 5 minutes with SAF 2.0 mm), and overall canal shapes were adequate.
  • Unprepared canal surface area decreased from 63.0% +/- 15.1% (2 minutes with SAF 1.5 mm) to 8.6% +/- 4.1% (5 minutes with SAF 2.0 mm).
  • CONCLUSIONS: Preparation of straight root canals in maxillary anterior teeth left little canal surface uninstrumented after shaping with the SAF.
  • [MeSH-major] Dental Alloys. Dental Pulp Cavity / radiography. Dentin / radiography. Nickel. Root Canal Preparation / instrumentation. Titanium. X-Ray Microtomography / methods

  • HSDB. structure - NICKEL, ELEMENTAL.
  • HSDB. structure - TITANIUM.
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  • [Copyright] Copyright 2010 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.
  • (PMID = 20478468.001).
  • [ISSN] 1878-3554
  • [Journal-full-title] Journal of endodontics
  • [ISO-abbreviation] J Endod
  • [Language] eng
  • [Publication-type] Comparative Study; Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Dental Alloys; 12035-60-8 / titanium nickelide; 7OV03QG267 / Nickel; D1JT611TNE / Titanium
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41. |||||..... 53%  D'Amario M, Baldi M, Petricca R, De Angelis F, El Abed R, D'Arcangelo C: Evaluation of a new nickel-titanium system to create the glide path in root canal preparation of curved canals. J Endod; 2013 Dec;39(12):1581-4
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Evaluation of a new nickel-titanium system to create the glide path in root canal preparation of curved canals.
  • The purpose of this study was to compare the maintenance of canal anatomy, the occurrence of apical transportation, and the working time observed using mechanised instrumentation with the new G-File rotary system (Micro-Mega, Besançon Cedex, France) with those observed using instrumentation with the PathFile system (Dentsply Maillefer, Ballaigues, Switzerland) and manual instrumentation with K-type files (Micro-Mega) to create a glide path in curved root canals.
  • The specimens were randomly divided into 3 groups with 15 canals each, and canal preparations were performed by an endodontist using #12-17 G-File rotary instruments (group GF), #13-16-19 PathFile rotary instruments (group PF), and #10-15-20 K-type stainless steel manual files (group M).
  • RESULTS: No statistically significant differences in the angle of canal curvature and apical transportation were found between the groups.
  • However, concerning the working time, specimens from the group who underwent canal preparation using #12-17 G-File rotary instruments achieved significantly lower mean values when compared with the other 2 groups, whereas the group who underwent canal preparation using the #10-15-20 K-type stainless steel manual files had the highest values.
  • CONCLUSIONS: The G-File rotary instruments, the PathFile system, and the manual instruments did not have any influence on the occurrence of apical transportation nor did they produce a change in the angle of canal curvature.

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  • [Copyright] Copyright © 2013 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.
  • (PMID = 24238451.001).
  • [ISSN] 1878-3554
  • [Journal-full-title] Journal of endodontics
  • [ISO-abbreviation] J Endod
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
  • [Keywords] NOTNLM ; G-File / glide path / nickel-titanium rotary instrumentation / preflaring
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42. |||||..... 53%  Ahmed HM: Anatomical challenges, electronic working length determination and current developments in root canal preparation of primary molar teeth. Int Endod J; 2013 Nov;46(11):1011-22
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Anatomical challenges, electronic working length determination and current developments in root canal preparation of primary molar teeth.
  • Hence, this review aims to map out the root and root canal morphology of primary molars, to discuss the application of electronic apex locators in primary molars and to provide an update on the preparation of their root canal systems.

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  • [Copyright] © 2013 International Endodontic Journal. Published by John Wiley & Sons Ltd.
  • (PMID = 23711096.001).
  • [ISSN] 1365-2591
  • [Journal-full-title] International endodontic journal
  • [ISO-abbreviation] Int Endod J
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] England
  • [Keywords] NOTNLM ; apex locator / deciduous molars / irrigation / primary molars / root / rotary NiTi files
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43. |||||..... 53%  Musale PK, Mujawar SA: Evaluation of the efficacy of rotary vs. hand files in root canal preparation of primary teeth in vitro using CBCT. Eur Arch Paediatr Dent; 2014 Apr;15(2):113-20
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Evaluation of the efficacy of rotary vs. hand files in root canal preparation of primary teeth in vitro using CBCT.
  • AIM: This in vitro study aimed to evaluate the efficacy of rotary ProFile, ProTaper, Hero Shaper and K-files in shaping ability, cleaning efficacy, preparation time and instrument distortion in primary molars.
  • Cleaning efficacy was evaluated by the degree of India ink removal from the canal walls under stereomicroscopy.
  • RESULTS: The canal taper was significantly more conical for rotary files as compared to K-files with Chi-square test (p < 0.05).
  • Reduced preparation time with rotary files enhances patient cooperation especially in young children.

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  • (PMID = 23893606.001).
  • [ISSN] 1818-6300
  • [Journal-full-title] European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry
  • [ISO-abbreviation] Eur Arch Paediatr Dent
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] England
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44. |||||..... 46%  Hohscheidt GL, Böttcher DE, Fatturi Parolo CC, Montagner F, Grecca FS: Response of E. faecalis biofilms to different associations of auxiliary substances during root canal preparation: a confocal laser microscopy analysis. Microsc Res Tech; 2013 Jun;76(6):658-62
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Response of E. faecalis biofilms to different associations of auxiliary substances during root canal preparation: a confocal laser microscopy analysis.
  • CONCLUSION: None of the tested substances could completely eliminate Ef from the root canal space.
  • [MeSH-major] Biofilms / drug effects. Enterococcus faecalis / drug effects. Enterococcus faecalis / physiology. Incisor / microbiology. Inorganic Chemicals / therapeutic use. Root Canal Preparation

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  • [Copyright] Copyright © 2013 Wiley Periodicals, Inc.
  • (PMID = 23564394.001).
  • [ISSN] 1097-0029
  • [Journal-full-title] Microscopy research and technique
  • [ISO-abbreviation] Microsc. Res. Tech.
  • [Language] eng
  • [Publication-type] In Vitro; Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Inorganic Chemicals
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45. |||||..... 46%  Peters OA, Paqué F: Root canal preparation of maxillary molars with the self-adjusting file: a micro-computed tomography study. J Endod; 2011 Jan;37(1):53-7
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Root canal preparation of maxillary molars with the self-adjusting file: a micro-computed tomography study.
  • INTRODUCTION: The aim of this study was to describe the canal shaping properties of a novel nickel-titanium instrument, the self-adjusting file (SAF), in maxillary molars.
  • Changes in canal volumes, surface areas, and cross-sectional geometry were compared with preoperative values.
  • Canal transportation and the fraction of unprepared canal surface area were also determined.
  • RESULTS: Preoperatively, mean canal volumes were 2.88 ± 1.32, 1.50 ± 0.99, and 4.30 ± 1.89 μm(3) [corrected] for mesiobuccal (MB), distobuccal (DB), and palatal (P) canals, respectively; these values were statistically similar to earlier studies with the same protocol.
  • Volumes and surface areas increased significantly in MB, DB, and P canals; mean canal transportation scores in the apical and middle root canal thirds ranged between 31 and 89 μm.
  • CONCLUSIONS: By using SAF instruments in vitro, canals in maxillary molars were homogenously and circumferentially prepared with little canal transportation.
  • [MeSH-major] Dental Instruments. Dental Pulp Cavity / anatomy & histology. Molar / anatomy & histology. Root Canal Preparation / instrumentation

  • HSDB. structure - NICKEL, ELEMENTAL.
  • HSDB. structure - TITANIUM.
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  • [Copyright] Copyright © 2011 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.
  • [ErratumIn] J Endod. 2011 Mar;37(3):419
  • (PMID = 21146077.001).
  • [ISSN] 1878-3554
  • [Journal-full-title] Journal of endodontics
  • [ISO-abbreviation] J Endod
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Dental Alloys; 12035-60-8 / titanium nickelide; 7OV03QG267 / Nickel; D1JT611TNE / Titanium
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46. |||||..... 46%  Nakamura VC, Cai S, Candeiro GT, Ferrari PH, Caldeira CL, Gavini G: Ex vivo evaluation of the effects of several root canal preparation techniques and irrigation regimens on a mixed microbial infection. Int Endod J; 2013 Mar;46(3):217-24
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Ex vivo evaluation of the effects of several root canal preparation techniques and irrigation regimens on a mixed microbial infection.
  • AIM: To assess the ex vivo effectiveness of the alternated use of 1% NaOCl and 15% citric acid in association with two instrumentation techniques for the disinfection of root canals infected with Enterococcus faecalis and Candida albicans.
  • METHODOLOGY: Eighty human mandibular premolars with straight, oval root canals standardized to 15 mm in length were infected with a mixed culture of E. faecalis and C. albicans for 28 days.
  • Specimens were divided into two groups (n = 40), according to whether the canal preparation technique used manual (K-type) or rotary (Protaper Universal) instruments.
  • Root canals were prepared with a crown-down technique until a size 50 K-file or with rotary preparation until an F5 instrument.
  • Microbiological sampling was performed before (S1) and after (S2) the chemomechanical preparation, using sterile paper points.
  • The specimens were split, and 0.02 g of dentine chips was collected from the root thirds to verify the presence of microorganisms in root canal walls.
  • Both manual and rotary preparations significantly reduced microorganisms regardless of the irrigation solution used (P < 0.05).
  • However, there was no significant difference between the canal preparation techniques (P > 0.05).
  • CONCLUSIONS: Irrigation with 5.25% NaOCl and 1% NaOCl alternated with 15% citric acid reduced microorganisms in infected root canals significantly more than saline and 1% NaOCl.
  • [MeSH-major] Candida albicans / drug effects. Dental Pulp Cavity / microbiology. Enterococcus faecalis / drug effects. Root Canal Irrigants / therapeutic use. Root Canal Preparation / methods

  • HSDB. structure - SODIUM CHLORIDE.
  • HSDB. structure - SODIUM HYPOCHLORITE.
  • HSDB. structure - CITRIC ACID.
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  • [Copyright] © 2012 International Endodontic Journal.
  • (PMID = 22900749.001).
  • [ISSN] 1365-2591
  • [Journal-full-title] International endodontic journal
  • [ISO-abbreviation] Int Endod J
  • [Language] eng
  • [Publication-type] Comparative Study; Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] England
  • [Chemical-registry-number] 0 / Root Canal Irrigants; 2968PHW8QP / Citric Acid; 7647-14-5 / Sodium Chloride; DY38VHM5OD / Sodium Hypochlorite
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47. |||||..... 46%  Celik D, Taşdemir T, Er K: Comparative study of 6 rotary nickel-titanium systems and hand instrumentation for root canal preparation in severely curved root canals of extracted teeth. J Endod; 2013 Feb;39(2):278-82
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Comparative study of 6 rotary nickel-titanium systems and hand instrumentation for root canal preparation in severely curved root canals of extracted teeth.
  • The purpose of this in vitro study was to compare the root canal preparations performed by using GT Series X and Twisted File systems produced by innovative manufacturing process with Revo-S, RaCe, Mtwo, and ProTaper Universal systems manufactured directly from conventional nitinol and with stainless steel K-Flexofile instruments.
  • METHODS: The mesiobuccal root canals of 140 maxillary first permanent molars that had between 30°-40° curvature angle and 4- to 9-mm curvature radius of the root canal were used.
  • After root canal preparations made by using GT Series X, Twisted File, Revo-S, RaCe, Mtwo, and ProTaper Universal NiTi rotary systems and stainless steel K-Flexofile instruments, transportation occurred in the root canal, and alteration of working length (WL) was assessed by using a modified double-digital radiographic technique.
  • RESULTS: NiTi rotary systems caused less canal transportation and alteration of WL than K-Flexofile instruments (P < .05).
  • At this level ProTaper Universal system caused significant canal transportation (P < .05).
  • CONCLUSIONS: GT Series X and Twisted File rotary systems produced with innovative process were concluded to shape the curved canals to result in minimal canal transportation, similar to Revo-S, RaCe, Mtwo, and ProTaper Universal rotary systems manufactured by traditional methods.
  • [MeSH-major] Dental Alloys / chemistry. Dental Pulp Cavity / pathology. Nickel / chemistry. Root Canal Preparation / instrumentation. Titanium / chemistry

  • HSDB. structure - NICKEL, ELEMENTAL.
  • HSDB. structure - TITANIUM.
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  • [Copyright] Copyright © 2013 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.
  • (PMID = 23321246.001).
  • [ISSN] 1878-3554
  • [Journal-full-title] Journal of endodontics
  • [ISO-abbreviation] J Endod
  • [Language] eng
  • [Publication-type] Comparative Study; Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Alloys; 0 / Dental Alloys; 12035-60-8 / titanium nickelide; 12597-68-1 / Stainless Steel; 52013-44-2 / nitinol; 7OV03QG267 / Nickel; D1JT611TNE / Titanium
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48. ||||...... 44%  Zhou ZJ, He H: [Clinical study on the effects of single visit root canal treatment of chronic periapical periodontitis by two kinds of root canal preparation instruments system]. Shanghai Kou Qiang Yi Xue; 2013 Feb;22(1):85-8
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] [Clinical study on the effects of single visit root canal treatment of chronic periapical periodontitis by two kinds of root canal preparation instruments system].
  • PURPOSE: To investigate the different incidence of postoperative pain and long-term follow-up curative effects in patients with chronic periapical periodontitis undergoing single visit root canal treatment by two kinds of canal preparation instruments system.
  • After canal preparation, all the teeth underwent canal filling immediately.
  • Nickel-titanium instruments system is worthy of wide application in patients with chronic periapical periodontitis undergoing single visit root canal treatment.

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  • (PMID = 23552788.001).
  • [ISSN] 1006-7248
  • [Journal-full-title] Shanghai kou qiang yi xue = Shanghai journal of stomatology
  • [ISO-abbreviation] Shanghai Kou Qiang Yi Xue
  • [Language] chi
  • [Publication-type] English Abstract; Journal Article
  • [Publication-country] China
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49. ||||...... 37%  Moinzadeh A, De Bruyne M: Re: A micro-computed tomographic evaluation of apical root canal preparation using three instrumentation techniques. Int Endod J; 2010 May;43(5):451-2; author reply 453
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Re: A micro-computed tomographic evaluation of apical root canal preparation using three instrumentation techniques.
  • [MeSH-major] Dental Pulp Cavity / radiography. Root Canal Preparation / instrumentation. Tooth Apex / radiography. X-Ray Microtomography / methods

  • HSDB. structure - NICKEL, ELEMENTAL.
  • HSDB. structure - TITANIUM.
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  • [CommentOn] Int Endod J. 2009 Dec;42(12):1057-64 [19912375.001]
  • (PMID = 20518940.001).
  • [ISSN] 1365-2591
  • [Journal-full-title] International endodontic journal
  • [ISO-abbreviation] Int Endod J
  • [Language] eng
  • [Publication-type] Comment; Letter
  • [Publication-country] England
  • [Chemical-registry-number] 0 / Dental Alloys; 12035-60-8 / titanium nickelide; 12597-68-1 / Stainless Steel; 7OV03QG267 / Nickel; D1JT611TNE / Titanium
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50. |......... 11%  Cassim I, van der Vyver PJ: The importance of glide path preparation in endodontics: a consideration of instruments and literature. SADJ; 2013 Aug;68(7):322, 324-7
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] The importance of glide path preparation in endodontics: a consideration of instruments and literature.
  • The efficacy of root canal preparation is considerably enhanced when an effort is made to provide an effective glide path.
  • The introduction of techniques and in struments specifically directed at the preparation of a glide path have facilitated root canal shaping and provide a variety from which the clinician may choose, guided by the relevant design features and performance characteristics.
  • [MeSH-major] Root Canal Preparation / methods

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  • (PMID = 24133951.001).
  • [ISSN] 1029-4864
  • [Journal-full-title] SADJ : journal of the South African Dental Association = tydskrif van die Suid-Afrikaanse Tandheelkundige Vereniging
  • [ISO-abbreviation] SADJ
  • [Language] eng
  • [Publication-type] Journal Article; Review
  • [Publication-country] South Africa
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