TY  - JOUR 
T1  - Peroxide bleaching agent effects on enamel surface microhardness, roughness and morphology
JO  - Brazilian Oral Research
A1  - Pinto, Cristiane Franco
A1  - Oliveira, Rogério de
A1  - Cavalli, Vanessa
A1  - Giannini, Marcelo
SN  - 1806-8324
UL  - 10.1590/S1806-83242004000400006
VL  - 18 
Y1  - 2004
PB  - Brasil 
ER  -