Definition: A ball of enamel found on the roots of molars.
Location: Molars, most commonly found on maxillary molars.
Internal: Radiopaque, same radiopacity as enamel.
Number: May be single or multiple.
Tip: Two radiographs of same tooth with different horizontal angles is recommended to verify the presence of an enamel pearl and not the overlap of adjacent roots which can have a similar appearance on single radiographs.
(note the round radiopaque area over the roots of the third molar)
(arrows pointing to round radiopaque area near furcation)