TO COMPARE AND EVALUATE THE CYCLIC FATIGUE RESISTANCE OF THREE NITI ROTARY FILE SYSTEM-AN INVITRO STUDY

  • Anil K Tomer Professor and Head, Department of Conservative Dentistry and Endodontics DJ College of Dental Science and Research, Modinagar, Ghaziabad
  • Vanita Verma Post Graduate Student , Department of Conservative Dentistry and Endodontics DJ College of Dental Science and Research, Modinagar, Ghaziabad
  • Nitin Bhateja Senior Resident, Lady Harding College of Medical Science, Delhi.
  • Pudu Tirupathi Post Graduate Student , Department of Conservative Dentistry and Endodontics DJ College of Dental Science and Research, Modinagar, Ghaziabad
  • Sushma Kumari Post Graduate Student , Department of Conservative Dentistry and Endodontics DJ College of Dental Science and Research, Modinagar, Ghaziabad
Keywords: Cyclic fatigue resistance, heat‑treated NiTi instruments, HyFlex EDM, OneCurve

Abstract

Aim:  To compare and evaluate the cyclic fatigue resistance of three NiTi rotary file system

Materials and Methods: Three NiTi rotary system (Hyflex EDM, Protaper Gold and One curve) were used in study . All files were tested in simulated constructed apparatus with angle of curvature 60o and radius of curvature 5mm.The rotary files were used in endomotor X smart (Densply) .All the instruments were utilized until fracture occurred, and then the number of cycles to failure (NCF) was calculated. The data were analyzed statistically using Annova test. The statistical significance level was set at P < 0.05.

Result: HEDM instruments had the highest cyclic fatigue resistance among all the other instruments (P < 0.05). The one curve instruments had a significantly higher fatigue resistance than the Protaper gold instruments (P < 0.05).

Conclusion: Within the limitations of this in vitro study, it was found that the cyclic fatigue resistance was higher for the HEDM instruments than for the, Protaper gold and one curve instruments.

Keywords: Cyclic fatigue resistance, heat‑treated NiTi instruments, HyFlex EDM, OneCurve

Published
2021-01-17
How to Cite
Tomer, A. K., Verma, V., Bhateja, N., Tirupathi, P., & Kumari, S. (2021). TO COMPARE AND EVALUATE THE CYCLIC FATIGUE RESISTANCE OF THREE NITI ROTARY FILE SYSTEM-AN INVITRO STUDY. International Journal of Medical Science And Diagnosis Research, 5(1). https://doi.org/10.32553/ijmsdr.v5i1.743
Section
Articles