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C-shaped canal in mandibular second premolar: A rare entity with cone-beam computed tomography-aided diagnosis and its endodontic management

C-shaped root canal configuration is an aberration of normal root canal anatomy whereby the main anatomic feature is the presence of a fin or web connecting the individual root canals. The incidence of the presence of such C-shaped root canal is extremely rare in the case of mandibular second premolars. Such canal configuration poses a challenge to the clinician during cleaning, shaping, and obturation of root canal. This case, reports a rare finding of C-shaped root canal in mandibular second premolar, confirmed taking cone-beam computed tomography and under dental operating microscope. Furthermore, it addresses clinical techniques used against challenges in endodontic disinfection of the C-shaped root canal and its meticulous endodontic management.