title: [Repair of a root perforation with MTA: a case report].
abstract: Root perforations as a possible complication during a root canal treatment may increase the risk of failure for the affected tooth. The influencing factors include: the location and the size of the perforation, a potential microbial colonization of the endodontic system, the time lapse between the occurrence of the perforation and repair, and the filling material. Decontamination at the perforation site and in the remaining root canal system is essential for long-term success. For most cases, an orthograde retreatment with perforation repair represents a reasonable causal-based approach. This case report documents the treatment of a maxillary incisor with extensive apical periodontitis and iatrogenic root perforation in a 14-year-old patient. Three years after retreatment, perforation repair and coronal restoration with composite the follow-up shows a successful treatment outcome.
authors.affiliation: Klinik für Parodontologie, Endodontologie und Kariologie, Universität Basel, Schweiz. Leonard.Buettel@unibas.ch
authors.forename: Leonard
authors.initials: L
authors.lastname: Büttel
authors.forename: Roland
authors.initials: R
authors.lastname: Weiger
authors.forename: Gabriel
authors.initials: G
authors.lastname: Krastl
mesh_terms: D000293:Adolescent; D017607:Aluminum Compounds / Q000627:therapeutic use*; D017610:Calcium Compounds / Q000627:therapeutic use*; D003793:Dental Restoration, Permanent; D004338:Drug Combinations; D006801:Humans; D007049:Iatrogenic Disease; D007180:Incisor / Q000293:injuries; D008297:Male; D010087:Oxides / Q000627:therapeutic use*; D010485:Periapical Periodontitis / Q000150:complications / Q000628:therapy; D011859:Radiography; D012387:Root Canal Filling Materials / Q000627:therapeutic use*; D018915:Root Canal Preparation / Q000009:adverse effects*; D012390:Root Canal Therapy; D017640:Silicates / Q000627:therapeutic use*; D018677:Tooth Injuries / Q000150:complications / Q000000981:diagnostic imaging / Q000209:etiology* / Q000628:therapy*; D014092:Tooth Root / Q000000981:diagnostic imaging / Q000293:injuries*
chemical_list: D017607:Aluminum Compounds; D017610:Calcium Compounds; D004338:Drug Combinations; D010087:Oxides; D012387:Root Canal Filling Materials; D017640:Silicates; C086631:mineral trioxide aggregate