Delayed Repair of Large Iatrogenic Furcation Perforation using MTA

The purpose of treating furcal perforation is to seal the artificial communication between the canal space and the periradicular tissue to prevent the periodontal breakdown. The duration, size and location of the perforation were identified as the primary prognostic factors for determining successful treatment. Mineral trioxide aggregate (MTA) has been regarded as an ideal material for perforation repair owing to its excellent sealability and biocompatibility. The present case report illustrates the efficiency of MTA in the delayed treatment of a large iatrogenic furcation perforation of the right mandibular second molar tooth with a duration of 8 weeks from perforation occurrence to repair. The tooth received a two-visit non-surgical root canal treatment prior to perforation repair using MTA without internal matrix. The healing of periradicular radiolucent lesions and interradicular radiolucency at 18 months indicated the successful sealing of the perforation. The outcome also indicated that MTA was able to seal the furcation perforation effectively in a large defect with delayed treatment time.