Abrasive wear of two glass ionomer cements after simulated toothbrushing - Freitas, Márcia Furtado Antunes de; Imai, Leandro Jum; Freitas, César Antunes de; Bianchi, Eduardo Carlos; Almeida, Carina Thaís de; Martins Filho, Ismar Eduardo (RSBO, 2011)