Definition: Hyperplasia of the cingulum of an anterior tooth.
Location: Any anterior tooth (primary or permanent dentition).
Shape: Triangular, superimposed over crown of associated tooth.
Internal: Radiopaque, same radiopacity as enamel.
Number: Can be either single or multiple.
(click image to enlarge)
(left – note yellow line over cusp) (right – note triangular radiopacity)