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 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
  2. doi Effect of chelating solutions on the microhardness of root canal lumen dentin
    Antonio M Cruz-Filho
    Department of Endodontics, Ribeirao Preto Dental School, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
    J Endod 37:358-62. 2011
  3. ncbi Efficacy of different rotary instruments for gutta-percha removal in root canal retreatment
    Jorg F Schirrmeister
    Department of Operative Dentistry and Periodontology Albert Ludwigs University of Freiburg, Germany
    J Endod 32:469-72. 2006
  4. doi A comparison of the efficacy of conventional and new retreatment instruments to remove gutta-percha in curved root canals: an ex vivo study
    G Celik Unal
    Department of Endodontics, Suleyman Demirel University, Isparta, Turkey
    Int Endod J 42:344-50. 2009
  5. ncbi Three-dimensional evaluation of effectiveness of hand and rotary instrumentation for retreatment of canals filled with different materials
    Mohammad Hammad
    School of Dentistry, University of Manchester, Manchester, United Kingdom
    J Endod 34:1370-3. 2008
  6. doi Pulp revascularization of immature teeth with apical periodontitis: a clinical study
    Rui Yu Ding
    Special Department, Peking University School and Hospital of Stomatology, Beijing, China
    J Endod 35:745-9. 2009
  7. doi The effectiveness of manual and mechanical instrumentation for the retreatment of three different root canal filling materials
    Francesco Somma
    Department of Endodontics, Catholic University of Sacred Heart, Rome, Italy
    J Endod 34:466-9. 2008
  8. ncbi The efficacy of R-Endo rotary NiTi and stainless-steel hand instruments to remove gutta-percha and Resilon
    G Fenoul
    UFR d Odontologie, University of Bordeaux 2, Bordeaux, France
    Int Endod J 43:135-41. 2010
  9. ncbi Efficacy, cleaning ability and safety of different rotary NiTi instruments in root canal retreatment
    M Hulsmann
    Department of Operative Dentistry, Preventive Dentistry and Periodontology, University of Gottingen, Gottingen, Germany
    Int Endod J 37:468-76. 2004
  10. ncbi Root canal preparation with the NiTi systems K3, Mtwo and ProTaper
    David Sonntag
    Department of Operative Dentistry, Philipps University Marburg, Georg Voigt Strasse 3, 35033 Marburg, Germany
    Aust Endod J 33:73-81. 2007

Detail Information

Publications220 found, 100 shown here

  1. 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...
  2. doi Effect of chelating solutions on the microhardness of root canal lumen dentin
    Antonio M Cruz-Filho
    Department of Endodontics, Ribeirao Preto Dental School, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
    J Endod 37:358-62. 2011
    ..This study evaluated the effect of different chelating solutions on the microhardness of the most superficial dentin layer from the root canal lumen...
  3. ncbi Efficacy of different rotary instruments for gutta-percha removal in root canal retreatment
    Jorg F Schirrmeister
    Department of Operative Dentistry and Periodontology Albert Ludwigs University of Freiburg, Germany
    J Endod 32:469-72. 2006
    ..05). One RaCe file, two ProTaper, and two FlexMaster instruments separated. RaCe cleaned obturated canals more effectively than hand files and FlexMaster files...
  4. doi A comparison of the efficacy of conventional and new retreatment instruments to remove gutta-percha in curved root canals: an ex vivo study
    G Celik Unal
    Department of Endodontics, Suleyman Demirel University, Isparta, Turkey
    Int Endod J 42:344-50. 2009
    ..To compare the efficacy of conventional and new retreatment instruments when removing gutta-percha root fillings in curved root canals...
  5. ncbi Three-dimensional evaluation of effectiveness of hand and rotary instrumentation for retreatment of canals filled with different materials
    Mohammad Hammad
    School of Dentistry, University of Manchester, Manchester, United Kingdom
    J Endod 34:1370-3. 2008
    ..The present study showed that all tested filling materials were not completely removed during retreatment by using hand or rotary files. Gutta-percha was more efficiently removed by using hand K-files...
  6. doi Pulp revascularization of immature teeth with apical periodontitis: a clinical study
    Rui Yu Ding
    Special Department, Peking University School and Hospital of Stomatology, Beijing, China
    J Endod 35:745-9. 2009
    ..The purpose of this study was to examine the effect of a pulpal revascularization procedure for immature necrotic teeth with apical periodontitis...
  7. doi The effectiveness of manual and mechanical instrumentation for the retreatment of three different root canal filling materials
    Francesco Somma
    Department of Endodontics, Catholic University of Sacred Heart, Rome, Italy
    J Endod 34:466-9. 2008
    ..Both the engine-driven NiTi rotary systems proved to be safe and fast devices for the removal of endodontic filling material...
  8. ncbi The efficacy of R-Endo rotary NiTi and stainless-steel hand instruments to remove gutta-percha and Resilon
    G Fenoul
    UFR d Odontologie, University of Bordeaux 2, Bordeaux, France
    Int Endod J 43:135-41. 2010
    ..To evaluate the efficacy of the R-Endo rotary nickel titanium instrumentation system and hand instrumentation to remove gutta-percha or Resilon from root canals...
  9. ncbi Efficacy, cleaning ability and safety of different rotary NiTi instruments in root canal retreatment
    M Hulsmann
    Department of Operative Dentistry, Preventive Dentistry and Periodontology, University of Gottingen, Gottingen, Germany
    Int Endod J 37:468-76. 2004
    ..To evaluate the efficacy, cleaning ability and safety of three different rotary nickel-titanium instruments with and without a solvent (eucalyptol) versus hand files in the removal of gutta-percha root fillings...
  10. ncbi Root canal preparation with the NiTi systems K3, Mtwo and ProTaper
    David Sonntag
    Department of Operative Dentistry, Philipps University Marburg, Georg Voigt Strasse 3, 35033 Marburg, Germany
    Aust Endod J 33:73-81. 2007
    The aim of this paper was to examine the result of rotary root canal preparation with the nickel-titanium (NiTi) systems K3, ProTaper and Mtwo...
  11. doi A prospective study of the factors affecting outcomes of nonsurgical root canal treatment: part 1: periapical health
    Y L Ng
    Unit of Endodontology, UCL Eastman Dental Institute, University College London, London, UK
    Int Endod J 44:583-609. 2011
    ..To investigate the probability of and factors influencing periapical status of teeth following primary (1°RCTx) or secondary (2°RCTx) root canal treatment...
  12. ncbi Failure of ProFile instruments used with high and low torque motors
    G M Yared
    Discipline of Endodontics, Faculty of Dentistry, University of Toronto, Canada
    Int Endod J 34:471-5. 2001
    ..The purpose of this study was to evaluate the failure incidence of ProFile nickel-titanium rotary instruments when used in conjunction with different motors and a specific instrumentation technique...
  13. ncbi Effectiveness of rotary and hand files in gutta-percha and sealer removal using chloroform or chlorhexidine gel
    Carlos Eduardo da Silveira Bueno
    Department of Endodontics, Pontifical Catholic University of Campinas, Campinas, SP, Brazil
    Braz Dent J 17:139-43. 2006
    ..The use of stainless steel hand files resulted in a lesser amount of filling debris than the use of nickel-titanium rotary instruments...
  14. ncbi The efficacy of ultrasonic irrigation to remove artificially placed dentine debris from different-sized simulated plastic root canals
    S J Lee
    Department of Conservative Dentistry, School of Dentistry, Chonbuk National University, Chonju, South Korea
    Int Endod J 37:607-12. 2004
    ..To investigate the influence of diameter and taper of root canals on the effectiveness of ultrasonic irrigation to remove artificially placed dentine debris from simulated uninstrumented extensions in simulated root canals...
  15. ncbi Outcome of primary root canal treatment: systematic review of the literature -- Part 2. Influence of clinical factors
    Y L Ng
    Unit of Endodontology, UCL Eastman Dental Institute, University College London, London, UK
    Int Endod J 41:6-31. 2008
    ..i) To carry out meta-analyses to quantify the influence of the clinical factors on the efficacy of primary root canal treatment and (ii) to identify the best treatment protocol based on the current evidence...
  16. ncbi Efficacy of two rotary NiTi instruments in the removal of Gutta-Percha during root canal retreatment
    Abdulhamied Y Saad
    Department of Oral Biology, Department of Endodontics, Faculty of Dental Medicine, Al Azhar University, Cairo, Egypt
    J Endod 33:38-41. 2007
    ..There was no statistically significant difference among the three techniques regarding the amount of apically extruded debris (p = 0.159). In conclusion, ProTaper and K3 were found to be effective and faster in removing gutta-percha...
  17. ncbi Effectiveness of different techniques for removing gutta-percha during retreatment
    A V Masiero
    Department of Dentistry and Endodontics, School of Dentistry, Universidade Federal de Pelotas, Pelotas, Brazil
    Int Endod J 38:2-7. 2005
    ..To evaluate the effectiveness of various techniques for removing filling material from root canals in vitro...
  18. ncbi Dynamic recording of irrigating fluid distribution in root canals using thermal image analysis
    Y D Hsieh
    School of Dentistry, National Defense Medical Centre, Taipei, Taiwan
    Int Endod J 40:11-7. 2007
    ..To investigate the influence of the size and the depth of insertion of irrigating needles, and the diameter of the master apical file on flow distribution during fluid irrigation in root canals...
  19. pmc Effect of vapor lock on root canal debridement by using a side-vented needle for positive-pressure irrigant delivery
    Franklin R Tay
    Department of Endodontics, School of Dentistry, Medical College of Georgia, Augusta, Georgia 30912 1129, USA
    J Endod 36:745-50. 2010
    ....
  20. doi Irrigant flow within a prepared root canal using various flow rates: a Computational Fluid Dynamics study
    C Boutsioukis
    Department of Endodontology, Dental School, Aristotle University of Thessaloniki, Thessaloniki, Greece
    Int Endod J 42:144-55. 2009
    ..To study using computer simulation the effect of irrigant flow rate on the flow pattern within a prepared root canal, during final irrigation with a syringe and needle...
  21. doi Ex vivo assessment of irrigant penetration and renewal during the final irrigation regimen
    F Bronnec
    Department of Endodontics and Restorative Dentistry, School of Dentistry, Paris 7 Denis Diderot University, Paris, France
    Int Endod J 43:663-72. 2010
    ..To assess irrigant penetration in curved canals after shaping procedures ex vivo...
  22. 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...
  23. ncbi Antimicrobial activity of sodium hypochlorite associated with intracanal medication for Candida albicans and Enterococcus faecalis inoculated in root canals
    Marcia Carneiro Valera
    Department of Restorative Dentistry, Sao Paulo State University, Sao Jose dos Campos, Brazil
    J Appl Oral Sci 17:555-9. 2009
    ..The purpose of this study was to evaluate the action of sodium hypochlorite (NaOCl) associated with an intracanal medication against Candida albicans and Enterococcus faecalis inoculated in root canals...
  24. 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
    ....
  25. 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...
  26. doi Efficacy of three different rotary files to remove gutta-percha and Resilon from root canals
    K Marfisi
    Department of Endodontics, Universitat Internacional de Catalunya, Sant Cugat del Vallès, Barcelona, Spain
    Int Endod J 43:1022-8. 2010
    ..To evaluate the efficacy of ProTaper Retreatment files, Mtwo Retreatment files and Twisted Files for removal of gutta-percha and Resilon in straight root canals...
  27. ncbi Efficiency of rotary nickel-titanium K3 instruments compared with stainless steel hand K-Flexofile. 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 36:208-17. 2003
    ..To determine the cleaning effectiveness and the shaping ability of K3 nickel-titanium rotary instruments and stainless steel hand K-Flexofiles during the preparation of curved root canals in extracted human teeth...
  28. ncbi Treatment outcome in endodontics: the Toronto Study. Phase III: initial treatment
    Vincent L Marquis
    MSc Program in Endodontics, Department of Graduate Endodontics, University of Toronto, Toronto, Ontario, Canada
    J Endod 32:299-306. 2006
    ..5; healed: absent, 88%; present, 76%). Treatment technique (OR = 2.8; CI 1.3-6.1; healed: Schilder, 89%; alternative, 73%) was suggested as an outcome predictor in teeth with AP, requiring confirmation from randomized controlled trials...
  29. doi Antimicrobial action of intracanal medicaments on the external root surface
    Brenda P F A Gomes
    Department of Restorative Dentistry, Endodontic Division, Piracicaba Dental School, University of Campinas, UNICAMP, Piracicaba, SP, Brazil
    J Dent 37:76-81. 2009
    ..To assess in vitro the antimicrobial action of intracanal medicaments in the external root surface, with or without of cementum...
  30. 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
    ..To compare the shaping ability of progressive versus constant taper shaft designed instruments in simulated root canals...
  31. ncbi An immunohistological study of the localization of bacteria invading root pulpal walls of teeth with periapical lesions
    Takashi Matsuo
    Department of Conservative Dentistry, University of Tokushima School of Dentistry, Kuramoto, Japan
    J Endod 29:194-200. 2003
    ..This study revealed the actual condition of bacteria in infected root dentin and suggested that the canal-enlargement procedure could not completely remove all the bacteria in the infected dentinal tubules of the root...
  32. doi Comparison of canal transportation and centering ability of twisted files, Pathfile-ProTaper system, and stainless steel hand K-files by using computed tomography
    Richard Gergi
    Department of Endodontics, Saint Joseph University, Beirut, Lebanon
    J Endod 36:904-7. 2010
    ..The purpose of this study was to compare canal transportation and centering ability of 2 rotary nickel-titanium (NiTi) systems (Twisted Files [TF] and Pathfile-ProTaper [PP]) with conventional stainless steel K-files...
  33. ncbi Root canal preparation with Endo-Eze AET: changes in root canal shape assessed by micro-computed tomography
    F Paque
    Division of Endodontology, Department of Preventive Dentistry, Periodontology and Cariology, University of Zurich, Zurich, Switzerland
    Int Endod J 38:456-64. 2005
    ..Preparation errors such as apical zips, perforations and fractured instruments were visually determined from those models. Means were contrasted using anova and Scheffé post-hoc tests...
  34. doi In vitro evaluation of the sealing ability of MTA used for the repair of furcation perforations with and without the use of an internal matrix
    Ling Zou
    State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, China
    Oral Surg Oral Med Oral Pathol Oral Radiol Endod 105:e61-5. 2008
    ..To evaluate the effect of matrix on mineral trioxide aggregate (MTA) when used to repair furcal perforations...
  35. doi Root canal preparation of maxillary molars with the self-adjusting file: a micro-computed tomography study
    Ove A Peters
    Department of Endodontics, Arthur A Dugoni School of Dentistry, University of the Pacific, San Francisco, California 94115, USA
    J Endod 37:53-7. 2011
    ..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...
  36. 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...
  37. ncbi Development and validation of a three-dimensional computational fluid dynamics model of root canal irrigation
    Yuan Gao
    State Key Laboratory of Oral Diseases, West China College and Hospital of Stomatology, Sichuan University, Chengdu, China
    J Endod 35:1282-7. 2009
    ..an important role in the debridement and disinfection of the root canal system and is an integral part of root canal preparation procedures...
  38. doi Treatment outcome in endodontics: the Toronto study--phases 3 and 4: orthograde retreatment
    Cristian de Chevigny
    Discipline of Endodontics, Faculty of Dentistry, University of Toronto, Toronto, Ontario, Canada
    J Endod 34:131-7. 2008
    ..Suggested significance of number of treatment sessions in teeth with radiolucency requires validation from randomized controlled trials...
  39. ncbi The effect of working length and root canal preparation technique on crack development in the apical root canal wall
    C G Adorno
    Pulp Biology and Endodontics, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan
    Int Endod J 43:321-7. 2010
    To evaluate the effects of working length and root canal preparation technique on crack development in the apical root canal wall.
  40. ncbi A comparison of Profile, Hero 642, and K3 instrumentation systems in teeth using digital imaging analysis
    María Paloma González-Rodrguez
    Department of Dental Pathology and Therapeutics, School of Dentistry, University of Granada, Spain
    Oral Surg Oral Med Oral Pathol Oral Radiol Endod 97:112-5. 2004
    ..04 and.06, Hero 642, and K3. The pre- and postinstrumentation sections were digitized and areas corresponding to the canals were measured with image-processing software...
  41. ncbi The standardized-taper root canal preparation--Part 1. Concepts for variably tapered shaping instruments
    L S Buchanan
    Dental Education Laboratories, 1515 State Street, Suite 16, Santa Barbara, CA 93101, USA
    Int Endod J 33:516-29. 2000
    To introduce the concept of variable taper instruments for predictable and ergonomic root canal preparation, and demonstrate the design features of Greater Taper files.
  42. ncbi Efficacy of automated versus hand instrumentation during root canal retreatment: an ex vivo study
    A C de Carvalho Maciel
    Department of Endodontics, Fluminense Federal University, Niteroi, RJ, Brazil
    Int Endod J 39:779-84. 2006
    ..To compare automated and manual instrumentation techniques for removing filling material from root canal walls during root canal retreatment...
  43. 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)...
  44. ncbi The importance of apical patency and cleaning of the apical foramen on root canal preparation
    Ronaldo Araújo Souza
    Bahia State Dental School, Foundation for Science Development FBDC, Salvador, BA, Brazil
    Braz Dent J 17:6-9. 2006
    ..By addressing the most important aspects of this theme, this paper aims to present news concepts about the importance of apical patency and cleaning of the apical foramen during root canal preparation.
  45. ncbi Effects of rotary instruments and ultrasonic irrigation on debris and smear layer scores: a scanning electron microscopic study
    B E Mayer
    Department of Preventive Dentistry, Cariology and Periodontology, University of Zurich, Switzerland
    Int Endod J 35:582-9. 2002
    ..The influence of two rotary preparation techniques on cleanliness of the shaped canals was also studied...
  46. 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...
  47. 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
    ..To compare in vitro intracanal bacterial reduction using nickel-titanium rotary instruments with and without apical enlargement...
  48. ncbi Root canal preparation with a novel nickel-titanium instrument evaluated with micro-computed tomography: canal surface preparation over time
    Ove A Peters
    Department of Endodontics, Arthur A Dugoni School of Dentistry, University of the Pacific, San Francisco, California 94115, USA
    J Endod 36:1068-72. 2010
    ..The aim of this part of an ongoing study was to describe the dentin removal ability of a novel nickel-titanium instrument, the self-adjusting file (SAF), by using micro-computed tomography...
  49. doi Canal transportation and centring ability of RaCe rotary instruments
    B Pasternak-Junior
    Department of Endodontics, University of Ribeirao Preto UNAERP, Ribeirao Preto, SP, Brazil
    Int Endod J 42:499-506. 2009
    ..Evaluate, through computerized tomography, canal transportation and centring ability of RaCe rotary instruments after preparation of mesiobuccal root canals in maxillary molar teeth...
  50. doi 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...
  51. 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...
  52. doi 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...
  53. 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.
  54. doi 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...
  55. 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...
  56. 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...
  57. 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, University of Gottingen, Germany
    Int Endod J 39:71-80. 2006
    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).
  58. 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...
  59. ncbi Efficiency of rotary nickel-titanium K3 instruments compared with stainless steel hand K-Flexofile. Part 1. Shaping ability in simulated curved canals
    E Schafer
    Department of Operative Dentistry, University of Munster, Munster, Germany
    Int Endod J 36:199-207. 2003
    ..To compare the shaping ability of K3 rotary nickel-titanium instruments with stainless steel K-Flexofiles manipulated by hand. Part 1 of this two-part report describes the efficiency of these two instruments in simulated curved root canals...
  60. ncbi The use and predictable placement of Mineral Trioxide Aggregate in one-visit apexification cases
    Torsten H Steinig
    Department of Endodontics, Texas A and M University System Health Science Center, Baylor College of Dentistry, Dallas, TX 75246, USA
    Aust Endod J 29:34-42. 2003
    ..Furthermore, the potential for fractures of immature teeth with thin roots is reduced, as a bonded core can be placed immediately within the root canal...
  61. doi 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...
  62. 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)...
  63. doi 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...
  64. doi 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
    ....
  65. doi 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...
  66. doi 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...
  67. 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
    ..To compare the ability of syringe irrigation and ultrasonic irrigation to remove artificially placed dentine debris from simulated canal irregularities within prepared root canals...
  68. ncbi A comparative study of root canal preparation using Profile .04 and Lightspeed rotary Ni-Ti instruments
    J Versümer
    Department of Operative Dentistry, University of Gottingen, Germany
    Int Endod J 35:37-46. 2002
    The purpose of this Study was to compare several parameters of root canal preparation using two different rotary nickel-titanium instruments: ProFile ...
  69. ncbi An analysis of endodontic treatment with three nickel-titanium rotary root canal preparation techniques
    O A Peters
    Division of Endodontology, Clinic for Preventive Dentistry, Periodontology and Cariology, University of Zurich, Zurich, Switzerland
    Int Endod J 37:849-59. 2004
    ..To investigate clinical results of root canal treatment performed with the aid of nickel-titanium (NiTi) rotary instruments...
  70. 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...
  71. 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...
  72. 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).
  73. 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...
  74. 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...
  75. doi 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
    ....
  76. 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).
  77. 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
    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).
  78. doi 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...
  79. 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...
  80. 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...
  81. 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...
  82. 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
    ....
  83. 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...
  84. 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...
  85. 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)...
  86. 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...
  87. ncbi [Advantages and limits of nickel-titanium instruments for root canal preparation. A review of the current literature]
    Silvio Taschieri
    Division d Odontologie, Hôpital Galeazzi, Université de Milan, 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...
  88. 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...
  89. 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...
  90. 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
    ....
  91. 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
  92. 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
    ..The objective of this study was to compare 2 preparation techniques performed under simulated clinical conditions with extended apical enlargement following determination of the optimal apical preparation size (APS)...
  93. 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...
  94. 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...
  95. 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)...
  96. doi 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...
  97. doi 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...
  98. 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...
  99. 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
    ....
  100. 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...
  101. 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, School of Dentistry of Ribeirao Preto, University of Ribeirao Preto, Ribeirao Preto, 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...

Research Grants13

  1. Endodontic infections in type 1 diabetic hosts
    Ashraf Fouad; Fiscal Year: 2001
    ..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...
  2. Aggressive Periodontitis and Formylpeptide Receptor SNPs
    John Walters; Fiscal Year: 2007
    ..unreadable] [unreadable] [unreadable]..
  3. Primary and Therapy-Resistant Endodontic Infections
    Ashraf Fouad; Fiscal Year: 2007
    ..abstract_text> ..
  4. Primary and Therapy-Resistant Endodontic Infections
    Ashraf Fouad; Fiscal Year: 2006
    ..abstract_text> ..
  5. Primary and Therapy-Resistant Endodontic Infections
    Ashraf Fouad; Fiscal Year: 2005
    ..abstract_text> ..
  6. 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. ..
  7. 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...
  8. Uptake of Fluoroquinolones and Tetracyclines by Gingiva
    John Walters; Fiscal Year: 2002
    ..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. ..
  9. Uptake of Fluoroquinolones and Tetracyclines by Gingiva
    John Walters; Fiscal Year: 2001
    ..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. ..
  10. 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). ..
  11. UPTAKE OF FLUOROQUINOLONE ANTIMICROBIALS BY PHAGOCYTES
    John Walters; Fiscal Year: 1999
    ..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). ..
  12. Primary and Therapy-Resistant Endodontic Infections
    Ashraf Fouad; Fiscal Year: 2008
    ..abstract_text> ..