Exploring anatomical variations of mandibular premolars and their clinical management: a case series

Anatomical variations in root canals pose significant challenges and may affect the course of treatment. Mandibular premolars usually have a single canal with single root. However, this case series highlights three mandibular premolars with distinct canal configurations. The first case involved a mandibular second premolar with Sert and Bayirli Type IX anatomy, characterised by one canal trifurcating into three different canals at the apex. In the second case, the Vertucci Type V configuration is in the mandibular second premolar. In the third case, a mandibular first premolar showed a Vertucci Type IV configuration, which remained distinct throughout its course. Cone-beam computed tomography (CBCT) is a reliable diagnostic tool for identifying these intricate canal morphologies. The use of magnification ensured through biomechanical preparation and obturation, which contributes to the success of endodontic therapy.