The Journal of Contemporary Dental Practice

Register      Login

SEARCH WITHIN CONTENT

FIND ARTICLE

Volume / Issue

Online First

Archive
Related articles

VOLUME 13 , ISSUE 4 ( July-August, 2012 ) > List of Articles

RESEARCH ARTICLE

The Influence of Cervical Preflaring of Root Canal on Determination of Initial Apical File using Gates Glidden Drills, Protaper, Race and Diamond-Coated Galaxy Files

TS Ashwini, Sonam Bhandari

Citation Information : Ashwini T, Bhandari S. The Influence of Cervical Preflaring of Root Canal on Determination of Initial Apical File using Gates Glidden Drills, Protaper, Race and Diamond-Coated Galaxy Files. J Contemp Dent Pract 2012; 13 (4):554-558.

DOI: 10.5005/JCDP-13-4-554

Published Online: 01-12-2012

Copyright Statement:  Copyright © 2012; The Author(s).


Abstract

Aim

To investigate the influence of cervical preflaring on apical file size determination using four different rotary instruments.

Materials and methods

Fifty root canals from extracted human maxillary premolars with complete root formation, straight roots were used for the study. Access opening was done and the working length established with 8 no K-file for each canal. Teeth were randomly divided into five groups of 10 canals. In Group 1- no preflaring was done and acted as control and in Groups 2, 3, 4 and 5 cervical and middle third preflaring of the root canals were done using Gates Glidden drills, Protaper instruments, Race instruments and Galaxy files respectively.

After preflaring, the apical file size determination was done and the initial apical file (IAF) was fixed at the working length. Teeth were sectioned transversally 1 mm from the apex, with the binding file in position. The samples were imaged under stereomicroscope with 30× magnification. Root canal and file maximum diameters were recorded for each sample. The readings were subjected to analysis of variance test and Scheffe's multiple comparison test.

Results

Preflaring with Race instruments lead to most accurate determination of the IAF. It was followed by Protaper, Galaxy files and Gates Glidden drills.

Conclusion

Traditional method of apical size determination may lead to a substantial underestimation of actual canal size. Cervical preflaring increases the accuracy of apical size determination.

Clinical significance

Thus, cervical preflaring is recommended before selection of IAF as it increases the accuracy of apical size determination.

How to cite this article

Ashwini TS, Bhandari S. The Influence of Cervical Preflaring of Root Canal on Determination of Initial Apical File using Gates Glidden Drills, Protaper, Race and Diamond-Coated Galaxy Files. J Contemp Dent Pract 2012; 13(4):554-558.


PDF Share
  1. The effect of cervical preflaring using different rotary nickel-titanium systems on the accuracy of apical file size determination. J Endod 2010;36:1669-72.
  2. The effect of root preparation technique and instrumentation length on the development of apical cracks. J Endod 2009;35:389-92.
  3. Endodontic working width: Current concepts and techniques. Dent Clin N Am 2004;48:323-35.
  4. Histological evaluation of different methods of enlarging pulp canal space. J Endod 1976;2:304-11.
  5. The accuracy in the control of the apical extent of rotary canal instrumentation using Root ZX II and Protaper instruments an in vivo study. J Endod 2008;34:1342-45.
  6. Preparation of root canal: Equipment and technique for cleaning, shaping and irrigation. Endodontic Practice 1988;1:179-222.
  7. Influence of cervical preflaring on apical file size determination. Int Endod J 2005;38:430-35.
  8. Canal orifice enlargement as related to biomechanical preparation. J Endod 1983;9:463-70.
  9. Influence of occlusal wear and age on formation of dentin and size of pulp chamber. J Dent Res 1961;40:1186-98.
  10. Effect of preflaring on tactile detection of the apical constriction. J Endod 1995;21:92-94.
  11. Influence of cervical preflaring on determination of apical file size in mandibular molars: SEM analysis. Braz Dent J 2008;19:245-51.
  12. Influence of cervical Preflaring on apical file size determination in maxillary lateral incisors. Braz Dent J 2007;18:102-06.
  13. Influence of cervical preflaring on determination of apical file size in maxillary premolars: SEM analysis. Braz Dent J 2005;16:30-34.
  14. Influence of cervical preflaring on determination of apical file size in maxillary molars: SEM analysis. Braz Dent J 2005;16:181-86.
  15. Comparison of the first file that fits at the apex, before and after early flaring. J Endod 2001;27:113-16.
  16. A clinical method to determine the optimal apical preparation size. Part I. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2006;5:686-91.
  17. Extended apical enlargement with hand files versus rotary NiTi files. Part II. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2006;5:692-97.
  18. Preparation of oval shaped root canals in mandibular molars using nickel-titanium rotary instruments: A microcomputed tomography study. J Endod 2010;36:703-07.
  19. Effects of root canal preparation on apical geometry assessed by microcomputed tomography. J Endod 2009;35:1056-59.
  20. Efficacy of three techniques in cleaning the apical portion of curved root canals. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 1995;79:492-96.
  21. The effectiveness of increased apical enlargement in reducing intracanal bacteria. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2002;28:779-83.
  22. The effect of instrument type and preflaring on apical file size determination. Int Endod J 2002;35:752-58.
  23. ProTaper rotary root canal preparation: Effect of canal anatomy on final shape analyzed by micro-CT. Int Endod J 2003;36:86-92.
PDF Share
PDF Share

© Jaypee Brothers Medical Publishers (P) LTD.