Ultrasonic removal of broken instruments in root canals.
Nagai
O
O
Tani
N
N
Kayaba
Y
Y
Kodama
S
S
Osada
T
T
D003786:Dental Pulp Cavity; D004868:Equipment Failure; D006801:Humans; D012390:Root Canal Therapy / Q000009:adverse effects / Q000295:instrumentation*; D014464:Ultrasonic Therapy / Q000295:instrumentation