Insertion torque, flexural strength and surface alterations of stainless steel and titanium alloy orthodontic mini-implants: an in vitro study oleh Gustavo Lopes PULS, Guido Artemio MARAÑÓN-VÁSQUEZ, Christian Andrew Vargas RAMOS, Caio Luiz Bitencourt REIS, Andréa Cândido dos REIS, Maria Bernadete Sasso STUANI, Fábio Lourenço ROMANO, Mírian Aiko Nakane MATSUMOTO