Middle distal canal: A rare morphological variation in root canal anatomy of the mandibular molar

A thorough cleaning and shaping of root canals is one of the primary objectives of root canal treatment. For that the clinician needs to be aware of different variations in root canal configurations. The purpose of this article is to report the successful treatment of middle distal canal with type VIII vertucci's root canal configuration. Treatment plan included the non surgical root canal treatment of right mandibular first molar with five canals followed by periodontal management of mesial bony defect. Re-examination at 6 months after the periodontal surgery revealed reduction in PD (from 13 to 5 mm) and with no sign of bleeding on probing. Radiographic follow up showed bone formation in the periodontal intrabony defect. A progressive bony healing appeared radiographically and all signs and symptoms absent after 6 months of thorough root canal treatment with periodontal management of mesial bony defect of right manidibular first molar.