A case of ameloblastoma presenting as an exophytic gingival lesion.

Ameloblastomas are predominantly benign, intra-osseous odontogenic tumors and mucosal involvement is a rare secondary phenomenon, occurring only after a long period of intra-osseous growth and bone expansion. A case is reported of an intra-osseous multicystic (solid) ameloblastoma which presented as an exophytic gingival lesion in the left mandibular third molar region. A classification of exophytic gingival lesions is presented and the clinical features and management of ameloblastomas discussed.