Unusual dens evaginatus on maxillary premolars: a case report.

Dens evaginatus is a developmental anomaly that can be defined as a tubercle from the surface of an affected tooth. It is composed of enamel and dentin usually enclosing pulp tissue. It is a rare dental anomaly commonly seen on premolars. A 12-year-old boy reported for the management of dental caries. He had bilateral occurrence of dens evaginatus on maxillary second premolars. The tubercle on the right side was unusually long without occlusal interference with the opposing primary mandibular second molar. Carious teeth were restored and the tubercle was left untreated. Management of dens evaginatus is determined by various factors which are discussed in decision-support system. Pulpal complication due to caries or fracture of tubercle can occur; hence it should be periodically monitored.