title: [Clinical management of lateral canal perforation with MTA].
abstract: OBJECTIVE
  To evaluate the clinical effect of repair of lateral root canal perforation with mineral trioxide aggregate (MTA).
  
  
  METHODS
  18 teeth with root canal perforation were selected. The root canals were shaped and cleaned, and then obturated with gutta-percha before or after MTA was used to repair the perforation.
  
  
  RESULTS
  The postoperative X-ray films showed that the perforation of 17 teeth was repaired well, except one tooth with large and infected perforation. 10 cases showed a little over-filling of MTA. 16 patients were recalled and declared their teeth to be asymptomatic. The recall radiographs indicated that the apical radiolucent areas of teeth with pre-existing apical lesion decreased apparently or disappeared completely. No new radiolucency was found.
  
  
  CONCLUSIONS
  MTA is effective in treatment of teeth with root canal perforation, even though the material is over-filled. Supported by 2004 Key Clinical Project of Medical Systems Affiliated to Ministry of Health and Natural Science Foundation of Guangdong Province (Grant No.5300624).
authors.affiliation: Department of Endodontics, Guanghua School of Stomatology, Sun Yat-sen University. Guangdong 510055, Guangdong Province, China.
authors.forename: Qiong
authors.initials: Q
authors.lastname: Xu
authors.forename: A-dan
authors.initials: AD
authors.lastname: Wang
authors.forename: Yu-zhu
authors.initials: YZ
authors.lastname: Zhou
authors.forename: Jun-qi
authors.initials: JQ
authors.lastname: Ling
mesh_terms: D017607:Aluminum Compounds; D017610:Calcium Compounds; D004338:Drug Combinations; D006171:Gutta-Percha; D006801:Humans; D008963:Molar; D010087:Oxides; D012387:Root Canal Filling Materials; D012390:Root Canal Therapy; D017640:Silicates
chemical_list: D017607:Aluminum Compounds; D017610:Calcium Compounds; D004338:Drug Combinations; D010087:Oxides; D012387:Root Canal Filling Materials; D017640:Silicates; C086631:mineral trioxide aggregate; D006171:Gutta-Percha