TY  - JOUR 
T1  - Effect of hydrofluoric acid etching duration on the roughness and flexural strength of a lithium disilicate-based glass ceramic
JO  - Brazilian Dental Journal
A1  - Zogheib, Lucas Villaça
A1  - Bona, Alvaro Della
A1  - Kimpara, Estevão Tomomitsu
A1  - Mccabe, John F.
SN  - 0103-6440
UL  - 10.1590/S0103-64402011000100008
VL  - 22 
Y1  - 2011
PB  - Brasil 
ER  -