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Abstract

A successful endodontic outcome relies on the localization of all canals and complete debridement of root canal system. The success of any endodontic therapy becomes a challenge when aberrant root canal morphology is present, especially when this anatomy is difficult to visualize from radiographs. The present case report is about endodontic management of a mandibular second molar that presented with a middle mesial canal. This is an exceedingly uncommon morphology and this case report is expected to increase clinician knowledge of a variable root canal anatomy associated with this tooth. KEYWORDS: Mandibular second molar, Middle mesial canal, aberrant root canal anatomy, endodontic failure.