Supernumerary primary tooth with facial and palatal talon cusps: a case report.

Talon cusp is a tooth anomaly originating from the tooth's lingual surface in most cases. To date, very rare cases have been reported documenting talon cusps both on the facial and palatal surface of an affected tooth in the dental literature. The purpose of this case report was to describe the facial and palatal talon cusps on an ectopic supernumerary primary maxillary tooth. A micro-CT investigation indicated no pulpal extensions within facial and palatal talon cusps.