Endodontic treatment success is largely dependent on the clinician's understanding of and aptitude for dealing with atypical anatomy. The mandibular canine typically has one root and one canal, however, 15% of individuals may have two canals and one or more foramina, and even fewer individuals may have two roots. In this paper, a clinical case is reported of a mandibular canine with two root canals that converge into a single canal and one foramen.