The Cyclic Fatigue Resistance of Different Lengths of CM Gold Wire and CM Blue Wire NiTi Alloy Endodontic Rotary Files: An In Vitro Study

Background: The objective of the present study was to measure and compare how length CM Gold Wire Blue NiTi alloy endodontic rotary files impacts their resistance cyclic fatigue. Methods: A total 40 sterile were chosen allocated following groups: (A) 25.06 wire files, 31 mm in (n = 10); (B) 25 (C) 21 (D) 17 10). specialized device designed using artificial root canal systems made from stainless steel for dynamic fatigue tests, with an apical diameter 250 µm, curvature angle 60°, radius 5 mm, lengths 31, 25, 21, a 6% taper. An individual operator determined failure instrument through direct observation tests filmed so as precisely exact time failure. results analyzed ANOVA Weibull statistical analysis. Results: found statistically significant differences across all groups (p < 0.05). Conclusions: Rotary file is inversely proportional at greater contributing lower