TY  - JOUR 
T1  - Evaluation of the apical seal after intraradicular retainer removal with ultrasound or carbide bur
JO  - Brazilian Oral Research
A1  - Campos, Tomie Nakakuki
A1  - Inoue, Cleber Henrique
A1  - Yamamoto, Elcio
A1  - Araki, Ângela Toshie
A1  - Adachi, Lena Katekawa
A1  - Rodriguez, Jose Eduardo Chorres
SN  - 1806-8324
UL  - 10.1590/S1806-83242007000300011
VL  - 21 
Y1  - 2007
PB  - Brasil 
ER  -