Dynamic photoelastic analysis of stress distribution in simulated canals using different heat-treated flat-side rotary instruments - Carvalho, Kleber Kildare Teodoro de; Moriya, Paulo Takeji; Kishen, Anil; Martins, Jorge N. R; Silva, Emmanuel João Nogueira Leal da; Alcalde, Murilo Priori; Fernandes, Francisco Manuel Braz; Souza, Erick Miranda; Versiani, Marco Aurélio (Clinical Oral Investigations, 2025)