Alquzweeni, A.A. et al. 2026. Cyclic fatigue of advanced heat-treated nickel-titanium rotary files in simulated canals with single or double curvatures. Journal of Baghdad College of Dentistry. 38, 1 (Mar. 2026), 34–44. DOI:https://doi.org/10.26477/jbcd.v38i1.4149.