Cyclic flexural resistance of newly introduced NiTi rotary file system: An in-vitro study

---

Original Article

Author Details : Akanksha Bhatt, B. Rajkumar, Vishesh Gupta

Volume : 4, Issue : 1, Year : 2018

Article Page : 22-26

https://doi.org/10.18231/2395-499X.2018.0005

Suggest article by email

Get Permission

---

Abstract

This study aimed to compare the cyclic fatigue fracture resistance of different rotary NiTi file systems. Hero shaper rotary file, one shape rotary file and a new rotary file system profile vortex were tested. The cyclic fatigue testing was conducted using a simulated root canal apparatus with an angle of curvature 60⁰and radius of curvature of 5mm.Total sample size of 30 rotary files (10 files in each experimental group) were selected for the study. The files were rotated at 400 rpm using the triauto mini endomotor set at 2.5N/cm torque, until fracture occurred. The time until fracture was recorded in seconds by using a digital stopwatch, and the number of rotations till fracture was then calculated using a mathematical formula. The results were then statistically analysed. Profile vortex (Group 3) was found superior as compared to one shape (Group 2) and hero shaper (Group 1) endodontic rotary NiTi file system in cyclic fatigue testing.

Keywords: Cyclic fatigue, Flexural fatigue resistance, Static flexural fracture resistance.

How to cite : Bhatt A, Rajkumar B, Gupta V, Cyclic flexural resistance of newly introduced NiTi rotary file system: An in-vitro study. Int J Oral Health Dent 2018;4(1):22-26

This is an Open Access (OA) journal, and articles are distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as appropriate credit is given and the new creations are licensed under the identical terms.