Assessment of canal centering ability and topography of three nickel- titanium rotary systems. Revista da Faculdade de Odontologia - UPF, [S. l.], v. 19, n. 1, 2014. DOI: 10.5335/rfo.v19i1.3525. Disponível em: https://ojs.upf.br/index.php/rfo/article/view/3525. Acesso em: 1 dez. 2025.