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Cyclic Fatigue Resistance Of Three Heat-Treated Nickel-Titanium Instruments At Simulated Body Temperature, Shehabeldin Mohamed Saber Prof.Dr.
Cyclic Fatigue Resistance Of Three Heat-Treated Nickel-Titanium Instruments At Simulated Body Temperature, Shehabeldin Mohamed Saber Prof.Dr.
Dentistry
Introduction: The aim of this study was to evaluate the cyclic fatigue resistance of three heat-Treated nickel-Titanium (NiTi) systems at simulated body temperature. Materials and Methods: Twelve instruments of similar apical diameter (#25) from three engine-driven NiTi instruments; WaveOne Gold (WOG), Hyflex EDM (HEDM), and M Pro system were tested for cyclic fatigue resistance at 37°C in simulated root canals with 60° angle of curvature and 5 mm curvature radius. All instruments were operated until fracture occurred. Mean and standard deviation of the time to fracture and fragment length were calculated, and statistical significance was set at 5%. The morphological …