The effect of autoclave sterilization on Cyclic fatigue ‎resistance of two Ni-Ti systems (an In-Vitro study)‎

Document Type : Original Article

Authors

1 Endo, faculty of dentistry, ain shams university, cairo, egtpt

2 Associate Professor , Endodontic Dep., Faculty of Dentistry, Ainshams University

3 Instructor , Endodontic Dep., Faculty of Dentistry, Ainshams University

Abstract

The aim of this study was to evaluate the effect of sterilization on the cyclic ‎fatigue resistance of Reciproc Blue rotary files and One Curve rotary files.‎ Methods: ‎For each test of the cyclic fatigue thirty files of each system were used. Ten ‎of the thirty rotary files were used new, ten rotary files after three sterilization cycles and ten rotary files after ‎six sterilization cycles. For cyclic fatigue ‎testing a static model was used ‎with a specific device, which allowed the instruments to ‎rotate freely ‎inside a Stainless-Steel artificial canal. Results: The results showed higher ‎cyclic fatigue of Reciproc Blue than One Curve with no effect of ‎sterilization on Reciproc Blue and decreeing in the cyclic fatigue resistance ‎for One Curve. Conclusions: Reciproc Blue has higher cyclic fatigue ‎resistance than One Curve. With no effect of sterilization on cyclic ‎fatigue of some files while have negative effect on others.

Keywords

Egyptian Dental Journal
Volume 67, Issue 3 - Serial Number 4
July (Conservative Dentistry and Endodontics)
July 2021
Pages 2743-2747

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