title: Removal of separated files from root canals with a new file-removal system: Case reports.
abstract: There have been many different devices and techniques developed to retrieve instruments fractured during endodontic procedures, but none of them can consistently remove separated instruments from root canals. Iatrogenic accidents such as perforation and canal destruction have been reported during the removal of separated instruments. The file removal process becomes even more difficult when breakage occurs in a curved canal or in the apical third of the canal. Four cases requiring removal of separated files from the apical third of curved canals are presented. All were successfully treated using a newly designed system and technique.
authors.affiliation: Department of Restorative Sciences, Pulp Biology and Endodontics Tokyo Medical and Dental University, Tokyo, Japan. terauti@tk.usen.ne.jp
authors.forename: Yoshitsugu
authors.initials: Y
authors.lastname: Terauchi
authors.forename: Le
authors.initials: L
authors.lastname: O'Leary
authors.forename: Hideaki
authors.initials: H
authors.lastname: Suda
mesh_terms: D000293:Adolescent; D000328:Adult; D020878:Device Removal / Q000379:methods; D004868:Equipment Failure; D005260:Female; D005547:Foreign Bodies / Q000000981:diagnostic imaging / Q000628:therapy*; D006801:Humans; D008297:Male; D011859:Radiography; D012017:Referral and Consultation; D019233:Retreatment / Q000379:methods; D012390:Root Canal Therapy / Q000295:instrumentation*; D014092:Tooth Root / Q000000981:diagnostic imaging*; D019553:Tooth, Nonvital / Q000000981:diagnostic imaging