TY  - JOUR 
T1  - Shear bond strength of ceramic brackets after different pre-treatments in
               porcelain surface
JO  - Brazilian Journal of Oral Sciences
A1  - May, Naudy Brodbeck
A1  - Araújo, Élito
A1  - Vieira, Luiz Clovis Cardoso
SN  - 1677-3225
UL  - 10.1590/1677-3225v14n1a07
VL  - 14 
Y1  - 2015
PB  - Brasil 
ER  -