root canal preparation

Summary

Summary: Preparatory activities in ROOT CANAL THERAPY by partial or complete extirpation of diseased pulp, cleaning and sterilization of the empty canal, enlarging and shaping the canal to receive the sealing material. The cavity may be prepared by mechanical, sonic, chemical, or other means. (From Dorland, 28th ed, p1700)

Top Publications

  1. ncbi Effect of three nickel-titanium rotary file techniques on infected root dentin reduction
    Marie-Pierre Chuste-Guillot
    Department of Endodontics, Faculty of Odontology, , Bordeaux, France
    Oral Surg Oral Med Oral Pathol Oral Radiol Endod 102:254-8. 2006
  2. ncbi The hybrid concept of nickel-titanium rotary instrumentation
    Helmut Walsch
    Department of Endodontics, School of Dental Medicine, University of Pennsylvania, 240 South 40th Street, Philadelphia, PA 19104 6030, USA
    Dent Clin North Am 48:183-202. 2004
  3. ncbi Current concepts in gutta-percha removal in endodontic retreatment
    Rich Mounce
    N Y State Dent J 70:32-5. 2004
  4. ncbi Hand-operated and rotary ProTaper instruments: a comparison of working time and number of rotations in simulated root canals
    Damiano Pasqualini
    Department of Endodontics, School of Dentistry, University of Turin, Turin, Italy
    J Endod 34:314-7. 2008
  5. ncbi ProTaper rotary root canal preparation: effects of canal anatomy on final shape analysed by micro CT
    O A Peters
    Endodontic Division, Department of Preventive and Restorative Dental Sciences, University of California, San Francisco, 94134, USA
    Int Endod J 36:86-92. 2003
  6. ncbi Current challenges and concepts in the preparation of root canal systems: a review
    Ove A Peters
    Division of Endodontology, Clinic for Preventive Dentistry, Periodontology and Cariology, University of Zurich, Switzerland
    J Endod 30:559-67. 2004
  7. ncbi Rotary nickel-titanium GT and ProTaper files for root canal shaping by novice operators: a radiographic and micro-computed tomography evaluation
    Diana Gekelman
    Division of Endodontics, Department of Preventive and Restorative Dental Sciences, University of California School of Dentistry, San Francisco, California 94143 0758, USA
    J Endod 35:1584-8. 2009
  8. ncbi Effects of root canal preparation on apical geometry assessed by micro-computed tomography
    Frank Paque
    Division of Endodontology, University of Zurich Dental School, Zurich, Switzerland
    J Endod 35:1056-9. 2009
  9. ncbi Shaping ability of progressive versus constant taper instruments in simulated root canals
    G B Yang
    Key Laboratory of Oral Biomedical Engineering of Ministry of Education, Sichuan University, Chengdu, China
    Int Endod J 39:791-9. 2006
  10. ncbi Ex vivo study on root canal instrumentation of two rotary nickel-titanium systems in comparison to stainless steel hand instruments
    J Vaudt
    Department of Operative Dentistry and Periodontology, University School of Dental Medicine, CharitéCentrum 3, Charite Universitatsmedizin Berlin, Berlin, Germany
    Int Endod J 42:22-33. 2009

Research Grants

  1. Aggressive Periodontitis and Formylpeptide Receptor SNPs
    John Walters; Fiscal Year: 2007
  2. Primary and Therapy-Resistant Endodontic Infections
    Ashraf Fouad; Fiscal Year: 2007
  3. Uptake of Fluoroquinolones and Tetracyclines by Gingiva
    John Walters; Fiscal Year: 2003
  4. Endodontic infections in type 1 diabetic hosts
    Ashraf Fouad; Fiscal Year: 2002
  5. UPTAKE OF FLUOROQUINOLONE ANTIMICROBIALS BY PHAGOCYTES
    John Walters; Fiscal Year: 2000

Detail Information

Publications184 found, 100 shown here

  1. ncbi Effect of three nickel-titanium rotary file techniques on infected root dentin reduction
    Marie-Pierre Chuste-Guillot
    Department of Endodontics, Faculty of Odontology, , Bordeaux, France
    Oral Surg Oral Med Oral Pathol Oral Radiol Endod 102:254-8. 2006
    ..CONCLUSION: Regardless of the root canal preparation technique, its taper, and diameter, the root dentin remained infected and was not bacteria-free at the end ..
  2. ncbi The hybrid concept of nickel-titanium rotary instrumentation
    Helmut Walsch
    Department of Endodontics, School of Dental Medicine, University of Pennsylvania, 240 South 40th Street, Philadelphia, PA 19104 6030, USA
    Dent Clin North Am 48:183-202. 2004
    ..The hybrid concept combines the best features of different systems for safe, quick, and predictable results. Several hybrid instrumentation sequences are presented and their limitations are discussed...
  3. ncbi Current concepts in gutta-percha removal in endodontic retreatment
    Rich Mounce
    N Y State Dent J 70:32-5. 2004
    ..Rotary nickel titanium files and the SystemB heat source (SybronEndo, Orange, CA) are significant adjuncts in effective GP removal...
  4. ncbi Hand-operated and rotary ProTaper instruments: a comparison of working time and number of rotations in simulated root canals
    Damiano Pasqualini
    Department of Endodontics, School of Dentistry, University of Turin, Turin, Italy
    J Endod 34:314-7. 2008
    ..05). Hand ProTaper required significantly fewer rotations (P < .001) than rotary ProTaper, whereas the effective working time to fully shape the simulated canal was significantly higher (P < .001) with hand ProTaper...
  5. ncbi ProTaper rotary root canal preparation: effects of canal anatomy on final shape analysed by micro CT
    O A Peters
    Endodontic Division, Department of Preventive and Restorative Dental Sciences, University of California, San Francisco, 94134, USA
    Int Endod J 36:86-92. 2003
    ..To evaluate the relative performance of ProTaper nickel-titanium (Ni-Ti) instruments shaping root canals of varying preoperative canal geometry...
  6. ncbi Current challenges and concepts in the preparation of root canal systems: a review
    Ove A Peters
    Division of Endodontology, Clinic for Preventive Dentistry, Periodontology and Cariology, University of Zurich, Switzerland
    J Endod 30:559-67. 2004
    ..However, and despite superior in vitro results, randomized, clinical trials are required to evaluate outcomes when using nickel-titanium instruments...
  7. ncbi Rotary nickel-titanium GT and ProTaper files for root canal shaping by novice operators: a radiographic and micro-computed tomography evaluation
    Diana Gekelman
    Division of Endodontics, Department of Preventive and Restorative Dental Sciences, University of California School of Dentistry, San Francisco, California 94143 0758, USA
    J Endod 35:1584-8. 2009
    ..The purpose of this study was to assess canal preparation outcomes in vitro by novice clinicians after standardized teaching sessions...
  8. ncbi Effects of root canal preparation on apical geometry assessed by micro-computed tomography
    Frank Paque
    Division of Endodontology, University of Zurich Dental School, Zurich, Switzerland
    J Endod 35:1056-9. 2009
    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.
  9. ncbi Shaping ability of progressive versus constant taper instruments in simulated root canals
    G B Yang
    Key Laboratory of Oral Biomedical Engineering of Ministry of Education, Sichuan University, Chengdu, China
    Int Endod J 39:791-9. 2006
    ..The taper prepared by Hero 642 instruments in the coronal part of the canal was generally poor...
  10. ncbi Ex vivo study on root canal instrumentation of two rotary nickel-titanium systems in comparison to stainless steel hand instruments
    J Vaudt
    Department of Operative Dentistry and Periodontology, University School of Dental Medicine, CharitéCentrum 3, Charite Universitatsmedizin Berlin, Berlin, Germany
    Int Endod J 42:22-33. 2009
    ..To investigate instrumentation time, working safety and the shaping ability of two rotary nickel-titanium (NiTi) systems (Alpha System and ProTaper Universal) in comparison to stainless steel hand instruments...
  11. ncbi An application framework of three-dimensional reconstruction and measurement for endodontic research
    Yuan Gao
    State Key Laboratory of Oral Diseases, West China College and Hospital of Stomatology, Sichuan University, Chengdu, China
    J Endod 35:269-74. 2009
    ..The broad-based use of high-quality free software and the resulting exchange of experience might help to improve the quality of endodontic research with micro-computed tomography...
  12. ncbi Shaping ability and safety of five different rotary nickel-titanium instruments compared with stainless steel hand instrumentation in simulated curved root canals
    Jorg F Schirrmeister
    Department of Operative Dentistry and Periodontology, Albert Ludwigs University of Freiburg, Freiburg, Germany
    Oral Surg Oral Med Oral Pathol Oral Radiol Endod 101:807-13. 2006
    ..To compare the shaping ability and safety of engine-driven FlexMaster, GT Rotary, ProFile, ProTaper, and RaCe rotary instrumentation and Hedström hand instrumentation in simulated root canals...
  13. ncbi Radiological evaluation of the morphological changes of root canals shaped with ProTaper for hand use and the ProTaper and RaCe rotary instruments
    Carlos M Aguiar
    Department of Prosthetics and Oral and Facial Surgery, MSc Course in Integrated Clinical Dentistry, Faculty of Dentistry, Federal University of Pernambuco, Recife, Brazil
    Aust Endod J 34:115-9. 2008
    ..There was no correlation between the occurrence of deviations in the apical third and the systems used...
  14. ncbi Study of the progressive changes in canal shape after using different instruments by hand in simulated S-shaped canals
    Huang Ding ming
    Key Laboratory of Oral Biomedical Engineering of the Ministry of Education, Department of Conservative Dentistry, West China Dental School, Sichuan University, Chengdu, China
    J Endod 33:986-9. 2007
    ..05), and the finishing files of PHU created the same transportation as the stainless steel instruments with the same tip size (p>0.05)...
  15. ncbi ProTaper rotary root canal preparation: assessment of torque and force in relation to canal anatomy
    O A Peters
    Endodontic Division, Department of Preventive and Restorative Dental Sciences, University of California, San Francisco, 94134, USA
    Int Endod J 36:93-9. 2003
    ..To investigate physical parameters for ProTaper nickel-titanium (NiTi) rotary instruments whilst preparing curved canals in maxillary molars in vitro...
  16. ncbi Evaluation of a rotary instrumentation method for C-shaped canals with micro-computed tomography
    Lisa H M Cheung
    Area of Endodontics, Faculty of Dentistry, University of Hong Kong, Hong Kong SAR, China
    J Endod 34:1233-8. 2008
    ..Although rotary instruments seemed to be safe in such canals, further enlargement to an apical dimension greater than size 30 (0.06 taper) is not recommended...
  17. ncbi A micro-computed tomographic evaluation of apical root canal preparation using three instrumentation techniques
    J Moore
    Melbourne Dental School, The University of Melbourne, Melbourne, Victoria 3010, Australia
    Int Endod J 42:1057-64. 2009
    ..To investigate the morphological changes in the apical third of the root canal after preparation with three techniques...
  18. ncbi Comparison of root canal transportation induced by three rotary systems with noncutting tips using computed tomography
    Senem Yigit Ozer
    Faculty of Dentistry, Department of Operative Dentistry and Endodontics, Dicle University, Diyarbakir, Turkey
    Oral Surg Oral Med Oral Pathol Oral Radiol Endod 111:244-50. 2011
    ....
  19. ncbi Histological evaluation of the effectiveness of increased apical enlargement for cleaning the apical third of curved canals
    V J Fornari
    Department of Endodontics, Faculty of Dentistry, University of Ribeirao Preto, Ribeirao Preto, Sao Paulo, Brazil
    Int Endod J 43:988-94. 2010
    ..To evaluate the influence of apical size on cleaning of the apical third of curved canals prepared with rotary instruments...
  20. ncbi Shaping ability and cleaning effectiveness of Mtwo versus coated and uncoated EasyShape instruments in severely curved root canals of extracted teeth
    S Bürklein
    Central Interdisciplinary Ambulance in School of Dentistry, University of Munster, Munster, Germany
    Int Endod J 44:447-57. 2011
    ..To compare the cleaning effectiveness and shaping ability of Mtwo, PVD-coated and uncoated EasyShape nickel-titanium rotary instruments during the preparation of curved root canals in extracted human teeth...
  21. ncbi A comparative study of root canal preparation with NiTi-TEE and K3 rotary Ni-Ti instruments
    B Jodway
    Department of Operative Dentistry, Preventive Dentistry and Periodontology, , Germany
    Int Endod J 39:71-80. 2006
    AIM: To evaluate and compare several parameters of curved root canal preparation using two different Ni-Ti systems: NiTi-TEE (Sjöding Sendoline, Kista, Sweden) and K3 (Sybron Endo, Orange County, CA, USA)...
  22. ncbi Procedural errors during root canal preparation using rotary NiTi instruments detected by periapical radiography and cone beam computed tomography
    Ana Helena Gonçalves de Alencar
    Dental School, Federal University of Goias, Goiania, GO, Brazil
    Braz Dent J 21:543-9. 2010
    This study detected procedural errors created by rotary nickel-titanium (NiTi) instruments during root canal preparation by two imaging methods...
  23. ncbi A methodology for quantitative evaluation of root canal instrumentation using microcomputed tomography
    L Bergmans
    Department of Operative Dentistry, Catholic University of Leuven, Belgium
    Int Endod J 34:390-8. 2001
    ..The aim of this paper was to present an objective methodology for quantitative evaluation of root canal instrumentation using microcomputer tomography, together with developed software based on a constructed mathematical model...
  24. ncbi Comparative study of six rotary nickel-titanium systems and hand instrumentation for root canal preparation
    A Guelzow
    Department of Operative Dentistry and Periodontology, University School of Dental Medicine, Campus Benjamin Franklin, Berlin, Germany
    Int Endod J 38:743-52. 2005
    AIM: To compare ex vivo various parameters of root canal preparation using a manual technique and six different rotary nickel-titanium (Ni-Ti) instruments (FlexMaster, System GT, HERO 642, K3, ProTaper, and RaCe)...
  25. ncbi Effect of endodontic instrument taper on post retention
    Mary T Pettiette
    Department of Endodontics, School of Dentistry, The University of North Carolina, Chapel Hill 27599-7450, USA
    J Endod 29:65-8. 2003
    ..08*, Taper 0.10, Taper 0.12*, Taper 0.10*, Taper 0.12, and Taper 0.06. Taper 0.08 was statistically inferior to Taper 0.04 but not Taper 0.02. The 0.04 taper seems to be the best taper for maximal resistance to post dislodgment...
  26. ncbi Identifying and reducing risks for potential fractures in endodontically treated teeth
    Weirong Tang
    Department of Endodontics, College of Stomatology, Nanjing Medical University, Nanjing, PR China
    J Endod 36:609-17. 2010
    ....
  27. ncbi Optimum post and tooth root diameters for a cast post-core system
    Yong Bin Mou
    Dental Research Institute, Nanjing Medical University, Nanjing, PR China
    Am J Dent 22:311-4. 2009
    ..To investigate the optimum diameter for the tapered post of a cast alloy post-core system relative to the root diameter, when measured at the root face, that is required to minimize both post and root failures...
  28. ncbi A comparative study of root canal preparation using FlexMaster and HERO 642 rotary Ni-Ti instruments
    M Hulsmann
    Department of Operative Dentistry, Preventive Dentistry and Periodontology, University of Gottingen, Germany
    Int Endod J 36:358-66. 2003
    To compare several parameters of root canal preparation using two different rotary nickel-titanium (Ni-Ti) instruments: FlexMaster (VDW, Munich, Germany) and HERO 642 (Micro-Mega, Besançon, France).
  29. ncbi Resin cement thickness in oval-shaped canals: oval vs. circular fiber posts in combination with different tips/drills for post space preparation
    Ivanovic Coniglio
    Department of Fixed Prosthodontics and Dental Materials, School of Dental Medicine, University of Siena, Italy
    Am J Dent 22:290-4. 2009
    ..To evaluate the cement thickness around oval and circular posts luted in oval post spaces prepared with different drills/tips...
  30. ncbi The use of computed tomography when comparing nickel-titanium and stainless steel files during preparation of simulated curved canals
    Y Garip
    Department of Endodontics, Faculty of Dentistry, Marmara University, Istanbul, Turkey
    Int Endod J 34:452-7. 2001
    ..The aim of this study was to compare canal preparations completed with Hedstrom and K-files of ISO size 15 - 40, made of nickel-titanium (Ni-Ti) and stainless steel (SS)...
  31. ncbi Mechanical root canal preparation with NiTi rotary instruments: rationale, performance and safety. Status report for the American Journal of Dentistry
    L Bergmans
    Department of Operative Dentistry and Dental Materials, BIOMAT, Catholic University of Leuven, Belgium
    Am J Dent 14:324-33. 2001
    ..However, with awareness of the appropriate manipulation and special attention to the equipment used, NiTi systems are safe with a minimal incidence of instrument failure...
  32. ncbi A comparative study of root canal preparation with HERO 642 and Quantec SC rotary Ni-Ti instruments
    M Hulsmann
    Department of Operative Dentistry, University of Gottingen, Germany
    Int Endod J 34:538-46. 2001
    The purpose of this study was to compare several parameters of root canal preparation using two different rotary nickel-titanium instruments: HERO 642 (Micro-Mega, Besancon, France) and Quantec SC (Tycom, Irvine, CA, USA).
  33. ncbi Second mesiobuccal canal detection in maxillary first molars using microscopy and ultrasonics
    Tayfun Alacam
    Department of Endodontics and Conservative Treatment, Faculty of Dentistry, Gazi University, Ankara, Turkey
    Aust Endod J 34:106-9. 2008
    ..The results of this study suggested that the combined use of the operating microscope and ultrasonics increased the detection of MB2 canals in maxillary first permanent molars...
  34. ncbi A comparison of three Ni-Ti rotary instruments in apical transportation
    Homan Hossein Javaheri
    Department of Endodontics, Dental Research Center, Shaheed Beheshti University, Evin, Tehran Iran
    J Endod 33:284-6. 2007
    ..The results suggest that ProTaper file system be implemented in combination with other less tapered more flexible systems, like RaCe, in preparing curved canals...
  35. ncbi The effectiveness of syringe irrigation and ultrasonics to remove debris from simulated irregularities within prepared root canal walls
    S-J Lee
    Department of Conservative Dentistry, Chonbuk National University, School of Dentistry, Chonju, South Korea
    Int Endod J 37:672-8. 2004
    ..CONCLUSION: Ultrasonic irrigation ex vivo is more effective than syringe irrigation in removing artificially created dentine debris placed in simulated uninstrumented extensions and irregularities in straight, wide root canals...
  36. ncbi The microscopic diagnosis and treatment of a mandibular second premolar with four canals
    K S Al-Fouzan
    Dental Department, King Fahad National Guard Hospital, Riyadh, Kingdom of Saudi Arabia
    Int Endod J 34:406-10. 2001
    ..The ability to recognize and locate unsuspected canals is enhanced by microscopic investigation of the pulp chamber...
  37. ncbi Microbial status of apical root canal system of human mandibular first molars with primary apical periodontitis after "one-visit" endodontic treatment
    P N R Nair
    Institute of Oral Biology, Center of Dental and Oral Medicine, University of Zurich, Zurich, Switzerland
    Oral Surg Oral Med Oral Pathol Oral Radiol Endod 99:231-52. 2005
    ..The residual intracanal infection was confirmed by correlative light and transmission electron microscopy...
  38. ncbi Analysis of torque and force with differently tapered rotary endodontic instruments in vitro
    Charlotte Schrader
    Clinic for Preventive Dentistry, Cardiology, Periodontology, and Endodontology, , , Switzerland
    J Endod 31:120-3. 2005
    ..An instrumentation sequence encompassing various tapers seems to be safer regarding torsional and fatigue failure compared to a sequence that used one single taper. However, the former sequence requires the use of more instruments...
  39. ncbi The shaping effects of three nickel-titanium rotary instruments in simulated S-shaped canals
    Y Yoshimine
    Department of Endodontology and Operative Dentistry, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
    J Endod 31:373-5. 2005
    ..These results suggest that nickel-titanium file systems including less tapered, more flexible instruments, like K3 and RaCe should be used in the apical preparation of canals with a complicated curvature...
  40. ncbi The influence of a manual glide path on the separation rate of NiTi rotary instruments
    Purificación Varela Patiño
    Department of Stomatology, Division of Pathology and Dental Therapeutics, School of Dentistry, University of Santiago de Compostela Spain
    J Endod 31:114-6. 2005
    ..007). Based on the results of this study, we recommend the use of stainless steel hand files to prepare the apical 1/3 of curved canals before introducing rotary files...
  41. ncbi Influence of cervical preflaring on apical file size determination
    J D Pecora
    Ribeirao Preto Dental School, University of Sao Paulo, Ribeirao Preto, SP, Brazil
    Int Endod J 38:430-5. 2005
    ..To investigate the influence of cervical preflaring with different instruments (Gates-Glidden drills, Quantec Flare series instruments and LA Axxess burs) on the first file that binds at working length (WL) in maxillary central incisors...
  42. ncbi Endodontics: Part 7. Preparing the root canal
    P Carrotte
    Department of Adult Dental Care, Glasgow Dental Hospital and School, 378 Sauchiehall Street, Glasgow G2 3JZ, Scotland, UK
    Br Dent J 197:603-13. 2004
    Research into root canal preparation has led to significant changes in instrumentation techniques. Hand files should be manipulated by the balanced-force technique...
  43. ncbi Evaluation of apical debris removal using various sizes and tapers of ProFile GT files
    Lynn J Albrecht
    School of Dentistry, Oregon Health and Science University, 611 SW Campus Drive, Portland OR, USA
    J Endod 30:425-8. 2004
    ..When a taper of.10 can be produced at the apical extent of the canal, there is no difference in debris removal between the two preparations sizes...
  44. ncbi An ex vivo quantification of the apically extruded bacteria following use of nickel-titanium rotary instruments
    Zahed Mohammadi
    Department of Endodontics, Sadoughi University of Medical Sciences, Yazd, Iran
    J Clin Dent 18:120-2. 2007
    ..The aim of this study was to evaluate the number of bacteria extruded apically from extracted teeth ex vivo after canal instrumentation using the five different engine-driven techniques utilizing nickel-titanium instruments...
  45. ncbi SEM evaluation of canal wall dentine following use of Mtwo and ProTaper NiTi rotary instruments
    F Foschi
    Endodontic Unit, Department of Dental Sciences, Alma Mater Studiorum, University of Bologna, Bologna, Italy
    Int Endod J 37:832-9. 2004
    ..The presence of deep grooves and depression on dentine walls in the apical third may well explain the presence of less-instrumented areas...
  46. ncbi Comparison of procedural errors resulting during root canal preparations completed by senior dental students in patients using an '8-step method' versus 'serial step-back technique'
    Anda Kfir
    Department of Endodontology, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel-Aviv University, Tel Aviv, Israel
    Oral Surg Oral Med Oral Pathol Oral Radiol Endod 97:745-8. 2004
    OBJECTIVE: To compare procedural errors that occur in patients during root canal preparation by senior dental students using a new '8-step method' versus the traditional 'serial step-back technique...
  47. ncbi Comparison of hand stainless steel and nickel titanium rotary instrumentation: a clinical study
    Edgar Schafer
    Poliklinik für Zahnerhaltung, University School of Dentistry, Waldeyerstrasse 30, D 48149 Munster, Germany
    J Endod 30:432-5. 2004
    ..Master apical file sizes were significantly greater for FlexMaster than for hand instruments (p < 0.01). This clinical study indicates that FlexMaster instruments prepared curved canals rapidly and with only minimal straightening...
  48. ncbi Comparison of apical transportation between ProFile and ProTaper NiTi rotary instruments
    M K Iqbal
    Department of Endodontics, The Robert Schattner Center, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA 19104 6030, USA
    Int Endod J 37:359-64. 2004
    ..To use a newly developed radiographic technique to compare apical transportation and loss of working length (WL) between.06 taper ProFile Series 29 and ProTaper nickel-titanium (NiTi) rotary instruments in vitro...
  49. ncbi Apical extrusion of intracanal debris and irrigant following use of various instrumentation techniques
    Alper Kustarci
    Department of Endodontics, School of Dentistry, Cumhuriyet University, Sivas, Turkey
    Oral Surg Oral Med Oral Pathol Oral Radiol Endod 105:257-62. 2008
    ..The purpose of this study was to compare in vitro the amount of debris and irrigant extruded apically from extracted teeth, using manual technique and crowndown pressureless technique by K3, RaCe, and FlexMaster instruments...
  50. ncbi In vitro evaluation of three techniques to obturate 0.06 taper canal preparations
    Solaiman M Al-Hadlaq
    Department of Restorative Dental Sciences, Division of Endodontics, College of Dentistry, King Saud University, PO Box 60169, Riyadh 11545, Saudi Arabia
    Aust Endod J 31:63-5. 2005
    ..The group obturated using System B and 0.06 taper gutta-percha points showed the least dye penetration. However, the difference in the linear extent of dye penetration was not statistically significant...
  51. ncbi Quality of molar root canal fillings performed with the lateral compaction and the single-cone technique
    Preben Hörsted-Bindslev
    Department of Dental Pathology, Operative Dentistry and Endodontics, School of Dentistry, University of Aarhus, Vennelyst Boulevard, DK 8000 Aarhus C, Denmark
    J Endod 33:468-71. 2007
    ..003), but both the mandibular distal (p = 0.001) and the maxillary palatal canals (p = 0.014) had a lower chance for a sufficient filling in projection MD...
  52. ncbi Ex vivo analysis of the debris remaining in flattened root canals of vital and nonvital teeth after biomechanical preparation with Ni-Ti rotary instruments
    Edi Wagner Sasaki
    Department of Dentistry, , , , SP, Brazil
    Braz Dent J 17:233-6. 2006
    ..95 +/- 2.22). It may be concluded that the clinical condition of pulp tissue did not interfere with the amount of debris remaining in the apical third of flattened root canals prepared with Ni-Ti rotary instruments...
  53. ncbi Comparison of conventional, rotary, and ultrasonic preparation, different final irrigation regimens, and 2 sealers in primary molar root canal therapy
    Harun Canoglu
    Department of Pediatric Dentistry, Faculty of Dentistry, Hacettepe University, Ankara, Turkey
    Pediatr Dent 28:518-23. 2006
    ..Use of AH Plus after 17% EDTA irrigation exhibited the best tubular penetration. CONCLUSIONS: Root canal preparation with Profile ...
  54. ncbi Effectiveness of two nickel-titanium rotary instruments and a hand file for removing gutta-percha in severely curved root canals during retreatment: an ex vivo study
    R Gergi
    Department of Endodontics, Saint Joseph University, Beirut, Lebanon
    Int Endod J 40:532-7. 2007
    ..To evaluate ex vivo the effectiveness of hand files, ProTaper and R-Endo rotary instruments when removing gutta-percha from curved root canals...
  55. ncbi Extended apical enlargement with hand files versus rotary NiTi files. Part II
    Tibor Bartha
    Department of Conservative Dentistry, University of Szeged, Szeged, Hungary
    Oral Surg Oral Med Oral Pathol Oral Radiol Endod 102:692-7. 2006
    ..In a few cases apical enlargement to APS does not achieve complete cutting of the canal walls. There was a rather slight risk of serious procedural errors...
  56. ncbi The influence of smear layer in lateral channels filling
    Angelica Bertacci
    Endodontics Unit, Department of Oral Sciences, University of Bologna, Via San Vitale 59, 40125 Bologna, Italy
    Clin Oral Investig 11:353-9. 2007
    ..All lateral channels resulted filled in both groups. No statistically significant differences regarding number, length, and diameter were observed between the two groups. Smear layer did not prevent the sealing of lateral channels...
  57. ncbi Retreatment efficacy of hand versus automated instrumentation in oval-shaped root canals: an ex vivo study
    O Zmener
    Department of Clinical and Experimental Research, Section of Endodontics, Department of Adult Dental Care, Faculty of Odontology, University of Buenos Aires, Buenos Aires, Argentina
    Int Endod J 39:521-6. 2006
    ..To compare the efficacy of hand versus automated instrumentation when retreating oval-shaped root canals...
  58. ncbi Effectiveness of a hand file and three nickel-titanium rotary instruments for removing gutta-percha in curved root canals during retreatment
    Jorg F Schirrmeister
    Department of Operative Dentistry and Periodontology, Albert Ludwigs University of Freiburg, Freiburg, Germany
    Oral Surg Oral Med Oral Pathol Oral Radiol Endod 101:542-7. 2006
    ..This study intended to compare the effectiveness of hand files and FlexMaster, ProTaper, and RaCe rotary instruments for removing gutta-percha in curved root canals during retreatment...
  59. ncbi One man's endodontic file sponge. Armamentarium and rationale
    Rich Mounce
    N Y State Dent J 73:54-6. 2007
    ..While other files might rarely be needed, this sponge reflects the vast majority of teeth treated in the author's daily practice (Figures 1-4)...
  60. ncbi Inability of laser and rotary instrumentation to eliminate root canal infection
    D Jha
    Division of Endodontics, School of Dental and Oral Surgery, Columbia University, 630 West 168th St, P O Box, 20 PH7E 117, New York, NY 10032, USA
    J Am Dent Assoc 137:67-70. 2006
    ..The authors evaluated the antibacterial effectiveness of laser instrumentation and rotary instrumentation of anterior, single-rooted teeth infected with Enterococcus faecalis...
  61. ncbi Hand and nickel-titanium root canal instrumentation performed by dental students: a micro-computed tomographic study
    M Peru
    Department of Conservative Dentistry, King's College London, UK
    Eur J Dent Educ 10:52-9. 2006
    ....
  62. ncbi Penetration depth of warm vertical Gutta-Percha pluggers: impact of apical preparation
    Franck Diemer
    Faculté de Chirurgie Dentaire de Toulouse, Toulouse, France
    J Endod 32:123-6. 2006
    ..52 mm The deepest penetration was obtained with the EndoK3, ProTaper, and HEROShaper instruments. By accentuating the taper, apical flaring facilitated the penetration of warm vertical gutta-percha compaction pluggers...
  63. ncbi Apical extrusion of intracanal bacteria following use of two engine-driven instrumentation techniques
    K Er
    Department of Endodontics, School of Dentistry, Cumhuriyet University, Sivas, Turkey
    Int Endod J 38:871-6. 2005
    ..To evaluate the number of bacteria extruded apically from extracted teeth ex vivo after canal instrumentation using the two engine-driven techniques utilizing nickel-titanium instruments (ProTaper and System GT)...
  64. ncbi [Advantages and limits of nickel-titanium instruments for root canal preparation. A review of the current literature]
    Silvio Taschieri
    Division d'Odontologie, , , Milan, Italie
    Schweiz Monatsschr Zahnmed 115:1000-5. 2005
    ..This literature review of mechanical properties of NiTi endodontic instruments aims to provide clinicians with a better understanding of their advantages and limits...
  65. ncbi Sealing properties of different obturation systems applied over apically fractured rotary nickel-titanium files
    Emre Altundasar
    Department of Endodontics, Hacettepe University, Ankara, Turkey
    J Endod 34:194-7. 2008
    ..05), but the obturation method did not influence fluid conduction (p > 0.05). These results reveal the variability of leakage associated with apically fractured ProFile and ProTaper files and different obturation methods used...
  66. ncbi Negotiating challenging mid root curvatures: rounding the bend
    Richard Mounce
    Belau National Hospital Dental Clinic, Republic of Palau, Koror, Palau
    Dent Today 26:108, 110, 112. 2007
  67. ncbi In vivo performance of the new non-instrumentation technology (NIT) for root canal obturation
    A Lussi
    Department of Operative, Preventive and Paediatric Dentistry, University of Bern, School of Dental Medicine, Bern, Switzerland
    Int Endod J 35:352-8. 2002
    ..Root canals filled by the reduced-pressure-method using sealer combined with gutta-percha cones exhibited equivalent radiographic quality compared to conventionally filled canals...
  68. ncbi Ultrastructural morphologic evaluation of root canal walls prepared by two rotary nickel-titanium systems: a comparative study
    Nihal Ezzat Sabet
    Department of Endodontics, Dental School, Cairo University, Cairo, Egypt
    Oral Surg Oral Med Oral Pathol Oral Radiol Endod 106:e59-66. 2008
    ....
  69. ncbi Evaluation of Glyde File Prep in combination with sodium hypochlorite as a root canal irrigant
    Simone Grandini
    Department of Restorative Dentistry, University of Siena, Italy
    J Endod 28:300-3. 2002
    ..Differences in the mean amount of debris between group A samples and other irrigation regimes were statistically significant...
  70. ncbi Reduction in intracanal bacteria during root canal preparation with and without apical enlargement
    L G Coldero
    Dental School, University of Glasgow, UK
    Int Endod J 35:437-46. 2002
    ..It may therefore not be necessary to remove dentine in the apical part of the root canal when a suitable coronal taper is achieved to allow satisfactory irrigation of the root canal system with antimicrobial agents...
  71. ncbi Apically extruded debris with three contemporary Ni-Ti instrumentation systems: an ex vivo comparative study
    Ajay Logani
    Division of Conservative Dentistry and Endodontics, Center for Dental Education and Research, All India Institute of Medical Sciences, New Delhi 110 029, India
    Indian J Dent Res 19:182-5. 2008
    ..To comparatively evaluate the amount of apically extruded debris when ProTaper hand, ProTaper rotary and ProFile systems were used for the instrumentation of root canals...
  72. ncbi Postoperative pain after 1- and 2-visit root canal therapy
    Anthony DiRenzo
    University of Illinois at Chicago, Chicago, Ill 60612, USA
    Oral Surg Oral Med Oral Pathol Oral Radiol Endod 93:605-10. 2002
    ..The purpose of this prospective clinical study was to evaluate postoperative pain after root canal therapy performed in 1 appointment versus 2 appointments...
  73. ncbi Influence of torque control motors and the operator's proficiency on ProTaper failures
    Ghassan Yared
    Department of Endodontics, Faculty of Dentistry, University of Toronto, Ontario, Canada
    Oral Surg Oral Med Oral Pathol Oral Radiol Endod 96:229-33. 2003
    ....
  74. ncbi The effectiveness of increased apical enlargement in reducing intracanal bacteria
    Steven J Card
    Department of Endodontics, The University of North Carolina, Chapel Hill 27599, USA
    J Endod 28:779-83. 2002
    ..0617). It is concluded that simple root canal systems (without multiple canal communications) may be rendered bacteria-free when preparation of this type is utilized...
  75. ncbi Smear layer production by 3 rotary reamers with different cutting blade designs in straight root canals: a scanning electron microscopic study
    In-Soo Jeon
    Yonsei University, Department of Endodontics, College of Dentistry, Oral Science Research Center, Seoul, South Korea
    Oral Surg Oral Med Oral Pathol Oral Radiol Endod 96:601-7. 2003
    ..CONCLUSION: These data revealed that the design of the cutting blade of rotary instruments can affect root canal cleanliness in straight root canals. This information may be useful in the selection of nickel-titanium rotary reamers...
  76. ncbi The accuracy of the Root ZX electronic apex locator using stainless-steel and nickel-titanium files
    Anthony S Thomas
    Department of Endodontics, Virginia Commonwealth University School of Dentistry, Richmond, USA
    J Endod 29:662-3. 2003
  77. ncbi Factors influencing the fracture of nickel-titanium rotary instruments
    B Martin
    Division of Dental Pathology and Therapeutics, Department of Stomatology, School of Dentistry, University of Santiago de Compostela, Spain
    Int Endod J 36:262-6. 2003
    ..To evaluate the effect of rotational speed and the angle and radius of curvature of root canals on the fracture of two types of nickel-titanium rotary instruments: K3 and ProTaper...
  78. ncbi Finishing the apical one third. Endodontic considerations
    Clifford J Ruddle
    University of the Pacific, School of Dentistry, San Francisco, USA
    Dent Today 21:66-70, 72-3. 2002
  79. ncbi A new solution for the removal of the smear layer
    Mahmoud Torabinejad
    Department of Endodontics, School of Dentistry, Loma Linda University, CA 92350, USA
    J Endod 29:170-5. 2003
    ....
  80. ncbi The effectiveness of manual and rotary techniques in the cleaning of root canals: a scanning electron microscopy study
    M Ahlquist
    Department of Cariology and Endodontology, Karolinska Institute, Huddinge, Sweden
    Int Endod J 34:533-7. 2001
    ..05). CONCLUSIONS: The manual technique employed in this study produced cleaner root canal walls than the rotary ProFile technique...
  81. ncbi MicroSeal systems and modified technique
    Francesco Maggiore
    Department of Endodontics, School of Dental Medicine, University of Pennsylvania, 240 South 40th Street, Philadelphia, PA 19104 6030, USA
    Dent Clin North Am 48:217-64. 2004
    ..Knowledge of the technique's indications and limitations represents an important step in the learning curve for those practitioners who are willing to incorporate a new obturation method into their clinical techniques...
  82. ncbi Real World Endo Sequence File
    Kenneth A Koch
    Real World Endo, The Barba Plaza, 2nd Floor, 2114 Silverside Road, Wilmington, DE 19810 4448, USA
    Dent Clin North Am 48:159-82. 2004
    ..This article discusses the benefits of a fully tapered preparation, the general design of rotary files, and the specific design and use of Real World Endo Sequence File...
  83. ncbi Predictable endodontic success. The apical control zone
    Kenneth S Serota
    Endodontic Solutions, Mississauga, Ontario, Canada. endosolns.com
    Dent Today 22:90-7. 2003
  84. ncbi Comparative investigation of two rotary nickel-titanium instruments: ProTaper versus RaCe. Part 2. Cleaning effectiveness and shaping ability in severely curved root canals of extracted teeth
    E Schafer
    Department of Operative Dentistry, University of Munster, Munster, Germany
    Int Endod J 37:239-48. 2004
    ..To determine the cleaning effectiveness and shaping ability of ProTaper and RaCe nickel-titanium rotary instruments during the preparation of curved root canals in extracted human teeth...
  85. ncbi Curved canals: ancestral files revisited
    Nidhi Jain
    Senior Resident, Safdarjung Hospital, New Delhi, India
    Indian J Dent Res 19:267-71. 2008
    ..This article compiles a series of clinical cases of root canals with curvatures in the middle and apical third and with S-shaped curvatures that were successfully completed by employing only conventional root canal hand instruments...
  86. ncbi Influence of instrument size on root canal debridement
    Najia Usman
    Department of Endodontology, Oregon Health and Sciences University School of Dentistry, Portland 97201, USA
    J Endod 30:110-2. 2004
    ..Irrigant volume, number of instrument changes, and depth of penetration of irrigation needle were not likely to explain differences in debridement...
  87. ncbi Influence of rotational speed, torque and operator proficiency on failure of Greater Taper files
    G M Yared
    Discipline of Endodontics, Faculty of Dentistry University of Toronto, Canada
    Int Endod J 35:7-12. 2002
    ..torque, and operator experience on the incidence of locking, deformation, and separation of instruments when using a specific Ni-Ti rotary instrumentation technique in extracted human teeth...
  88. ncbi Appearance of the root canal walls after preparation with NiTi rotary instruments: a comparative SEM investigation
    Carlo Prati
    Endodontics Unit, Department of Dental Sciences, University of Bologna, Alma Mater Studiorum, Via S Vitale 59, Bologna, Italy
    Clin Oral Investig 8:102-10. 2004
    ..The apical third was the anatomical area with greater amount of debris and smear layer...
  89. ncbi Clinical and macroscopic study of maxillary molars with two palatal roots
    F Baratto-Filho
    Faculty of Dentistry, , , Brazil
    Int Endod J 35:796-801. 2002
    ..KEY LEARNING POINTS: Clinicians should be aware of uncommon anatomical variations in maxillary molars. The majority of maxillary first molars have three roots and four canals. Maxillary molars may have two canals in the palatal root...
  90. ncbi [Study on the effect of ultrasonic irrigation in deactivating and eliminating the endotoxin in the root canals of chronic periapical periodontitis]
    Gui Xiang Liu
    Dept of Conservative Dentistry and Endodontics, Stomatological Hospital, Shandong University, Jinan 250012, China
    Hua Xi Kou Qiang Yi Xue Za Zhi 28:158-61. 2010
    ..To study the effect of ultrasonic irrigation in deactivating and eliminating the endotoxin in the root canals of chronic periapical periodontitis...
  91. ncbi The effect of mineral trioxide aggregate on the apexification and periapical healing of teeth with incomplete root formation
    W T Felippe
    School of Dentistry, Federal University of Santa Catarina, Florianopolis, SC, Brazil
    Int Endod J 39:2-9. 2006
    ....
  92. ncbi Accuracy of a new apex locator: an in vitro study
    A Y Kaufman
    Department of Endodontology, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv University, Tel Aviv, Israel
    Int Endod J 35:186-92. 2002
    ....
  93. ncbi A comparison of spreader penetration depth and load required during lateral condensation in teeth prepared using various root canal preparation techniques
    S F Dulaimi
    Dental Technologies Department, College of Health and Medical Technologies, Foundation of Technical Education, Baghdad, Iraq
    Int Endod J 38:510-5. 2005
    To compare the influence of various root canal preparation techniques on spreader penetration depth and load required during lateral condensation with gutta-percha and sealer.
  94. ncbi Prevalence and management of instrument fracture in the postgraduate endodontic program at the Dental School of Athens: a five-year retrospective clinical study
    Giorgos N Tzanetakis
    Department of Endodontics, Dental School, University of Athens, Athens, Greece
    J Endod 34:675-8. 2008
    ..present clinical research was to investigate the prevalence and management of instrument fracture during root canal preparation by postgraduate students (Department of Endodontics, Dental School of Athens) and to determine the ..
  95. ncbi Canal preparation with Hero 642 rotary Ni-Ti instruments compared with stainless steel hand K-file assessed using computed tomography
    T Tasdemir
    Department of Endodontics, Faculty of Dentistry, Ondokuz Mayis University, Samsun, Turkey
    Int Endod J 38:402-8. 2005
    To compare ex vivo root canal preparation with conventional stainless steel K-files and Hero 642 rotary Ni-Ti instruments.
  96. ncbi NSK reciprocating handpiece: in vitro comparative analysis of dentinal removal during root canal preparation by different operators
    Márcia Helena Wagner
    Department of Endodontics, University of Santa Cruz do Sul, Santa Cruz do Sul, RS, Brazil
    Braz Dent J 17:10-4. 2006
    The purpose of this study was to assess dentin removal during root canal preparation by different operators using a NSK reciprocating handpiece...
  97. ncbi Efficacy of root canal preparation by Er,Cr:YSGG laser irradiation with crown-down technique in vitro
    Mir Nowazesh Ali
    Department of Endodontics, Showa University School of Dentistry, Tokyo, Japan
    Photomed Laser Surg 23:196-201. 2005
    The purpose of this study was to compare the efficacy of Er,Cr:YSGG laser in root canal preparation and its effectiveness in removing debris and smear layer with the efficacy of the conventional hand instrument, in vitro.
  98. ncbi The effect of root canal preparation on microleakage within endodontically treated teeth: an in vitro study
    J A von Fraunhofer
    School of Dentistry, University of Maryland, Baltimore, 666 West Baltimore Street, Baltimore, MD 21201, USA
    Int Endod J 33:355-60. 2000
    ..The purpose of this study was to evaluate the effects of smear layer and canal instrumentation on leakage in root-filled teeth...
  99. ncbi Photodynamic therapy for root canals infected with Enterococcus faecalis
    Michelle Bernardes Fonseca
    Hospital Heliopolis, Sao Paulo, Brazil
    Photomed Laser Surg 26:209-13. 2008
    ..The aim of this study was to investigate the effects of photodynamic therapy (PDT) on endodontic pathogens by evaluating the decrease in numbers of Enterococcus faecalis colonies in the canals of extracted human teeth...
  100. ncbi An in vitro comparison of cast metal dowel retention using various luting agents and tensile loading
    H Zeynep Ertugrul
    School of Dental Medicine, Department of Prosthodontics, University of Pittsburg, Pittsburg, PA 15261, USA
    J Prosthet Dent 93:446-52. 2005
    ..No clear consensus exists regarding the choice of luting agents for the retention of cast metal dowels used as a treatment alternative for endodontically treated teeth with excessive loss of coronal tooth structure...
  101. ncbi [Effect of tinidazole-dexamethasone-iodoform paste on controlling endodontic interappointment emergencies]
    Hai Hua Wang
    Department of Dentistry, Shaoxing People s Hospital, Shaoxing 312000, Zhejiang Province, China
    Shanghai Kou Qiang Yi Xue 13:222-3. 2004
    ..To compare the clinical effect of tinidazole-dexamethasone-iodoform paste on intracanal dressing medication for teeth with chronic periapical periodontitis with that of formocresol...

Research Grants13

  1. Aggressive Periodontitis and Formylpeptide Receptor SNPs
    John Walters; Fiscal Year: 2007
    ..Targeted therapeutic intervention to eliminate pathogens prior to clinical expression of AP could mitigate periodontal destruction, minimize functional and esthetic problems related to tooth loss, and reduce the cost of dental care. ..
  2. Primary and Therapy-Resistant Endodontic Infections
    Ashraf Fouad; Fiscal Year: 2007
    ..abstract_text> ..
  3. Uptake of Fluoroquinolones and Tetracyclines by Gingiva
    John Walters; Fiscal Year: 2003
    ..Strategies that optimize the uptake and distribution of antimicrobial agents should enhance the elimination of invasive pathogens from the periodontium and other types of mucosa. ..
  4. Endodontic infections in type 1 diabetic hosts
    Ashraf Fouad; Fiscal Year: 2002
    ..the effects of type 1 DM on the prevalence of pathogenic bacteria and Candida albicans before and after root canal preparation in these teeth, using sensitive molecular techniques...
  5. UPTAKE OF FLUOROQUINOLONE ANTIMICROBIALS BY PHAGOCYTES
    John Walters; Fiscal Year: 2000
    ..Ultimately, this work could facilitate new approaches for treating infections by A.a. and other pathogens that resist phagocytic killing (e.g., Salmonella and Chlamydia). ..