A periapical pathology, could be a result of caries, trauma, periodontally compromised oral cavity or even a thermal and chemical insult to the tooth. Effective cleaning, shaping and disinfection is the key to a successful endodontic treatment. A deep understanding of the anatomy of a root canal system, is of high value while performing a non-surgical root canal treatment. We often come across mandibular premolars with aberrant root canal anatomies. They often present with multiple canals, splits and accessory canals.
This article describes a case of NSRCT of a mandibular premolar with 1-2 configuration and it presented with a big peri-apical radiolucency.