Source of Support: None, Conflict of Interest: None
For successful root canal treatment of any tooth, one should be aware if accurate morphology of root canal system. Variations in length, number and configurations of roots and canals exist in all teeth. Root canal morphology of premolar teeth, either maxillary or mandibular, and discrepancies between first and second premolars have been reported throughout the literature. A case reported is presented of the root canal treatment of mandibular second premolar with two roots and two canals.