Definition: Outfolding of enamel from the occlusal or incisal surface of a tooth. There may be a small pulp horn in this outfolding of enamel. This is less common than dens invaginatus.
Location: Most commonly found associated with lateral incisors and premolars.
Internal: Radiopaque, radiopacity of enamel.
Number: Singular with each tooth, may be multiple in the mouth.
(click image to enlarge)
(left – circle showing triangular radiopacity on occlusal surface) (right – without the circle)