30Apr 2017

EVALUATION OF DENTINAL MICRO CRACK FORMATION BY NEW SELF ADJUSTING FILE SYSTEM VERSUS CONVENTIONAL NITI ROTARY INSTRUMENTS: AN IN VITRO STUDY.

  • Dept. Of Conservative Dentistry And Endodontics.
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The aim of this study was to evaluate and compare the dentinal microcrack formation in root dentine by new SAF system and other rotary instruments. This study was performed on 40 single-canal extracted mandibular premolars. Materials And Methods:- Teeth were divided into 4 groups (n=10), according to their preparation criteria: Group 1- Control group in which teeth were only prepared with #20 K file. Group 2- Teeth were prepared by K3XF (SYBRONENDO) file after glide path preparation with #20 K file Group 3- Teeth were prepared by Twisted file system (SYBRONENDO) after glide path preparation with #20 K file Group 4- Teeth were prepared by Self Adjusting File system after glide path preparation with #20 K file. Results:- In the present study the maximum defects were found in group 3 (twisted file), followed by group 2 (K3XF) and minimum cracks in group 4 i.e SAF system. No defects were observed in group 1(control). Groups were significantly different from each other (P = 0.01). Conclusion:-Maximum defects were found in group 3 (twisted file), followed by group 2 (K3XF) and minimum cracks in group 4 i.e SAF system. No defects were observed in group 1(control). The p value less than 0.05(p<0.05) was considered statistically significant.

  1. Peters OA. Current challenges and concepts in the preparation of root canal systems: a review. Journal of endodontics. 2004;30(8):559-67.
  2. Wilcox LR, Roskelley C, Sutton T. The relationship of root canal enlargement to finger-spreader induced vertical root fracture. Journal of Endodontics. 1997;23(8):533-4.
  3. Ertas H, Sagsen B, Arslan H, Er O, Ertas ET. Effects of physical and morphological properties of roots on fracture resistance. European journal of dentistry. 2014;18(2):261.
  4. Singh S, Nigam N. Comparative evaluation of surface characteristics of dentinal walls with and without using plastic finishing file. Journal of Conservative Dentistry. 2010;113(2):89.
  5. Kim HC, Lee MH, Yum J, Versluis A, Lee CJ, Kim BM. Potential relationship between design of nickel-titanium rotary instruments and vertical root fracture. Journal of endodontics. 2010;36(7):1195-9.
  6. Kim HC, Lee MH, Yum J, Versluis A, Lee CJ, Kim BM. Potential relationship between design of nickel-titanium rotary instruments and vertical root fracture. Journal of endodontics. 2010;36(7):1195-9
  7. Bergmans L, Van Cleynenbreugel J, Beullens M, Wevers M, Van Meerbeek B, Lambrechts P. Smooth flexible versus active tapered shaft design using NiTi rotary instruments. International Endodontic Journal. 2002;35(10):820-8.
  8. Bahia MG, Melo MC, Buono VT. Influence of cyclic torsional loading on the fatigue resistance of K3 instruments. International endodontic journal. 2008;41(10):883-91.
  9. Bhagabati N, Yadav S, Talwar S. An in vitro cyclic fatigue analysis of different endodontic nickel-titanium rotary instruments. Journal of endodontics. 2012;38(4):515-8.
  10. Yoldas O, Yilmaz S, Atakan G, Kuden C, Kasan Z. Dentinal microcrack formation during root canal preparations by different NiTi rotary instruments and the self-adjusting file. Journal of endodontics. 2012;38(2):232-5.
  11. Metzger Z. The self-adjusting file (SAF) system: An evidence based update. Journal of Conservative Dentistry. 2014;17(5):401.
  12. Karataş E, G?nd?z HA, Kırıcı D?, Arslan H, Top?u M?, Yeter KY. Dentinal crack formation during root canal preparations by the twisted file adaptive, ProTaper Next, ProTaper Universal, and WaveOne instruments. Journal of endodontics. 2015;41(2):261-4.
  13. Monga P, Bajaj N, Mahajan P, Garg S. Comparison of incidence of dentinal defects after root canal preparation with continuous rotation and reciprocating instrumentation. Singapore dental journal. 2015;31(36):29-33.
  14. Liu R, Hou BX, Wesselink PR, Wu MK, Shemesh H. The incidence of root microcracks caused by 3 different single-file systems versus the ProTaper system. Journal of endodontics. 2013;39(8):1054-6.
  15. Solomonov M. Eight months of clinical experience with the Self-Adjusting File system. Journal of endodontics. 2011;37(6):881-7.
  16. Sim TP, Knowles JC, Ng YL, Shelton J, Gulabivala K. Effect of sodium hypochlorite on mechanical properties of dentine and tooth surface strain. International Endodontic Journal. 2001;34(2):120-32.
  17. Kim HC, Sung SY, Ha JH, Solomonov M, Lee JM, Lee CJ, Kim BM. Stress generation during self-adjusting file movement: minimally invasive instrumentation. Journal of endodontics. 2013;39(12):1572-5.
  18. Haapasalo M, Shen Y. Evolution of nickel?titanium instruments: from past to future. Endodontic topics. 2013;29(1):3-17.
  19. Berutti E, Fedon G. Thickness of cementum/dentin in mesial roots of mandibular first molars. J Endod. 1992;18(11):545-8.
  20. Aydin C, Inan U, Gultekin M. Comparison of the shaping ability of Twisted Files with ProTaper and RevoS nickel-titanium instruments in simulated canals. Journal of Dental Sciences. 2012;7(3):283-8.

[Pratishtha Tanwar and Ekta Choudhary.. (2017); EVALUATION OF DENTINAL MICRO CRACK FORMATION BY NEW SELF ADJUSTING FILE SYSTEM VERSUS CONVENTIONAL NITI ROTARY INSTRUMENTS: AN IN VITRO STUDY. Int. J. of Adv. Res. 5 (Apr). 1995-2000] (ISSN 2320-5407). www.journalijar.com

Dr.Pratishtha Tanwar

DOI:

Article DOI: 10.21474/IJAR01/4043      
DOI URL: https://dx.doi.org/10.21474/IJAR01/4043

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