Shaping ability and cyclic fatigue resistance between Genius ProFlex, ZenFlex, and TruNatomy rotary systems: an experimental study. - de Oliveira Neto RS; Alcalde MP; Titato PCG; Calefi PHS; Ramos CAS; da Silva GF; Vivan RR; Duarte MAH (Restorative dentistry & endodontics, 2025)