Endodontic treatment of three-rooted maxillary first premolar: A case report

A meticulous knowledge of the tooth morphology, careful interpretation of angled radiographs, proper access preparation and a detailed exploration of the interior of the tooth are prerequisites for a successful treatment outcome. False assumption about root canal morphology may lead to incomplete debridement and obturation of root canal space eventually leading to endodontic failures.Maxillary first premolar is known for the greatest variations in root anatomy and root canal morphology, while presence of two roots with two canals is quite common and is considered normal. The incidence of first maxillary premolar with three roots & three canals is quite rare and has been reported to 0–6% by Carns and Skid.This case report discusses the diagnosis and treatment of a maxillary first premolar with three canals and three separate roots. The presence of three roots with three canals was detected by radiographic interpretation, access refinements and confirmed by using spiral computed tomography.