Tabriz University of Medical Sciences Journal of Dental Research, Dental Clinics, Dental Prospects 2008-210X 4 2 2010 06 01 Unusual Case of a Talon Cusp on a Supernumerary Tooth in Association with a Mesiodens 60 63 EN Prashant Babaji Firoza Sanadi Mahesh Melkundi Journal Article 2009 12 08 2010 04 16 Talon cusp is an accessory cusp similar to a projection, extending from the cingulum or cemento-enamel junction to the incisal edge. It occurs on labial or palatal surfaces of primary or permanent anterior teeth in both arches. This accessory cusp can occur as an isolated entity or in association with other dental anomalies. Occurrence of a talon cusp on supernumerary teeth is rare and uncommon. This paper reports an unusual case of a talon cusp on a supernumerary tooth in association with mesiodens.