TY  - JOUR 
T1  - Hand and ultrasonic instrumentation in the treatment of chronic periodontitis after supragingival plaque control
JO  - Brazilian Oral Research
A1  - Chapper, Ana
A1  - Catão, Viviane Vasconcelos
A1  - Oppermann, Rui Vicente
SN  - 1806-8324
UL  - 10.1590/S1806-83242005000100008
VL  - 19 
Y1  - 2005
PB  - Brasil 
ER  -