Hydrofluoric acid concentration and etching time affect differently the microstructure and surface properties of pressed lithium disilicate glass ceramics - Alves, Larissa Márcia Martins; Campos, Tiago Moreira Bastos; Bergamo, Edmara Tatiely Pedroso; Benalcazar Jalkh, Ernesto Byron; Gierthmuehlen, Petra Christine; Sailer, Irena; Thim, Gilmar Patrocínio; Strazzi-Sahyon, Henrico Badaoui; Celestrino, Marcos; Guimarães, Carolina Curcio Lott; Bonfante, Estevam Augusto (Journal of Esthetic and Restorative Dentistry, 2024)