The effect of canal curvature on cyclic fatigue resistance of rotary instruments using different irrigation materials ( study).

Background: The mechanical qualities of Ni-Ti is crucial because they give the files their flexibility and enable us to prepare curved and double-curved canals with more ease. It happens frequently for instruments to separate during canal preparation, and cyclic fatigue (metal fatigue) is a frequent cause.This study aimed to assess how irrigation affected the two rotary endodontic instruments' cyclic fatigue resistance.