Endodontic Enigma – Mandibular Second Premolar with Three Root Canals: A Case Report

Abstract

For a high level of success in endodontic treatment it requires a great understanding of root canal anatomy and morphology. The dentists must be prepared to identify those teeth that tend to vary generally from normal anatomy. Thorough shaping, cleaning and obturation of such teeth can be challenging and failing to do so can lead to treatment failure. Mandibular premolars usually have aberrant anatomy. However, the occurrence of three separate canals with three separate foramina in mandibular premolars is very rare. Zilich and Dawson reported 11.7% occurrence of 2 canals and 0.4% of three canals in mandibular second premolar. This case report describes endodontic management of one such tooth with unusual morphological variations in canal anatomy of mandibular second premolar.