title: [Removal of intracanal obstructions with ultrasound (an analysis of 206 cases)].
abstract: The experience of removing intracanal obstructions with ultrasound in 206 cases from Sept. 1987 to June 1993 was reported. Removal rate was 97.08% (200/206). Six cases failed (2.92%), due to broken endodontic instruments at the apical third or in the curved and fine canals. The success rate of retrieval of casting post-core or other foreign objects was 100%. Our experience proves that ultrasonic technique is more effective and safer than any other methods for removal of intracanal obstructions.
authors.affiliation: School of Stomatology, Shanghai Second Medical University.
authors.forename: X Y
authors.initials: XY
authors.lastname: Wang
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D003786:Dental Pulp Cavity / Q000000981:diagnostic imaging*; D005260:Female; D005547:Foreign Bodies / Q000628:therapy*; D006801:Humans; D008297:Male; D008875:Middle Aged; D012390:Root Canal Therapy / Q000009:adverse effects; D014464:Ultrasonic Therapy; D014463:Ultrasonography