J Hong1, X Wang, Z Wang. 1. School of Stomatology, Shanghai Second Medical University, Shanghai 200011.
Abstract
OBJECTIVE: To investigate and evaluate the method of managing curved, fine, and obstructed root canals during endodontic treatment. METHODS: Ultrasonic treatment of such root canals was used in 73 cases. RESULTS: The root canals were enlarged and filled in 69 cases, with a success rate of 94.5%. Fracture of the tooth, lateral perforation of the canal, and breaking of the reamer were not found. Failure occurred in 4 cases where the canals were obstructed. CONCLUSION: The ultrasonic treatment of root canal is an effective, practical, and safe method. Nevertheless, its use in curved and severely obstructed root canals is limited.
OBJECTIVE: To investigate and evaluate the method of managing curved, fine, and obstructed root canals during endodontic treatment. METHODS: Ultrasonic treatment of such root canals was used in 73 cases. RESULTS: The root canals were enlarged and filled in 69 cases, with a success rate of 94.5%. Fracture of the tooth, lateral perforation of the canal, and breaking of the reamer were not found. Failure occurred in 4 cases where the canals were obstructed. CONCLUSION: The ultrasonic treatment of root canal is an effective, practical, and safe method. Nevertheless, its use in curved and severely obstructed root canals is limited.