1Post Graduate Students, Department of Conservative Dentistry and Endodontics, Faculty of Dental Sciences, M.S. Ramaiah University of Applied Sciences, Bangalore-560054
2Assitant Professor, Department of Conservative Dentistry and Endodontics, Faculty of Dental Sciences, M.S. Ramaiah University of Applied Sciences, Bangalore-560054
3Senior Professor, Department of Conservative Dentistry and Endodontics, Faculty of Dental Sciences, M.S. Ramaiah University of Applied Sciences, Bangalore-560054
*Corresponding Author E-mail: dr.mohini.kumari@gmail.com
Online published on 18 January, 2019.
Rotary kinematics plays an important role in understanding the clinical use of the rotary files and the two most commonly associated terms-Torsional and cyclic fatigue. While one is associated with the binding of the tip of the file; the latter occurs in roots with high radii of curvature leading to unforeseen compression-tension of the file. With the introduction of rotary nickel-titanium files, a plethora of rotary kinematics have helped overcome these short comings. The two most widely accepted rotary kinematis include-rotary motion and reciprocating motion. Thus, the aim of this review article is to provide a systematic analysis on the association between rotary kinematics and the cyclic fatigue resistance of Nickel-Titanium rotary instruments.
Titanium Rotary Files, Cyclic Fatigue Resistance, Rotary Kinematics, Reciprocating Kinematics
