Induction of osteodentin and abortive enamel in adenomatoid odontogenic tumor

Adenomatoid odontogenic tumor (AOT) with induction of calcified dentin with or without concomitant formation of enamel is exceedingly rare. This paper reports a case of AOT showing induction of osteodentin and abortive enamel. The patient was a 15-year-old male with a well-circumscribed intraosseous lesion containing the crown of the embedded left maxillary canine. Histologically, induction of osteodentin and abortive enamel was seen, in addition to characteristic histological features of AOT. The review of the English literature yields that the present case is the second AOT with induction of both dentin and enamel.