title: [Treatment outcome of iatrogenic perforation repair by mineral trioxide aggregate].
abstract: OBJECTIVE
  To observe the clinical effect of iatrogenic perforation repaired by mineral trioxide aggregate (MTA).
  
  
  METHODS
  Twenty-one iatrogenic perforation cases were included. The root canals were shaped and cleaned and then obturated after MTA was used to repair the perforation with microscopes. Preoperative, immediate postoperative, and follow-up radiographs were evaluated to determine the pathologic changes adjacent to the perforation site.
  
  
  RESULTS
  Nineteen cases healed and two cases were healing. No cases failed.
  
  
  CONCLUSIONS
  MTA is effective in the treatment of iatrogenic perforation.
authors.affiliation: Department of Endodontics, Capital Medical University School of Stomatology, Beijing 100050, China.
authors.forename: Chen
authors.initials: C
authors.lastname: Zhang
authors.forename: Zheng
authors.initials: Z
authors.lastname: Sun
authors.forename: Ben-Xiang
authors.initials: BX
authors.lastname: Hou
mesh_terms: D017607:Aluminum Compounds / Q000627:therapeutic use*; D017610:Calcium Compounds / Q000627:therapeutic use*; D003786:Dental Pulp Cavity / Q000000981:diagnostic imaging / Q000293:injuries*; D004338:Drug Combinations; D005500:Follow-Up Studies; D006801:Humans; D007049:Iatrogenic Disease; D007180:Incisor / Q000000981:diagnostic imaging / Q000293:injuries; D008963:Molar / Q000000981:diagnostic imaging / Q000293:injuries; D010087:Oxides / Q000627:therapeutic use*; D011859:Radiography; D012387:Root Canal Filling Materials / Q000627:therapeutic use*; D017640:Silicates / Q000627:therapeutic use*
chemical_list: D017607:Aluminum Compounds; D017610:Calcium Compounds; D004338:Drug Combinations; D010087:Oxides; D012387:Root Canal Filling Materials; D017640:Silicates; C086631:mineral trioxide aggregate