TY - JOUR T1 - Assessment of the Performance and Surface Alteration of Two Single-file Systems According to the Number of Uses JO - Brazilian Archives of Biology and Technology A1 - Porto-Pires, Márcia Virginia M. A1 - Nabeshima, Cleber Keiti A1 - Caballero-Flores, Hector A1 - Machado, Manoel Eduardo de Lima SN - 1516-8913 UL - 10.1590/1678-4324-2020180500 VL - 63 Y1 - 2020 PB - Brasil ER -