TY - JOUR AU - Pinto, C F; Oliveira, Rd; Cavalli, V; Giannini, M TI - Peroxide bleaching agent effects on enamel surface microhardness, roughness and morphology JO - Braz Oral Res VL - 18 PY - 2004 DO - 10.1590/S1806-83242004000400006 L3 - PubMed-ID: 16089261 SP - 306 EP - 11 ER -