Juvenile ossifying fibroma of the mandible.

Juvenile ossifying fibroma is a benign, but potentially aggressive, fibro-osseous tumor of the craniofacial bones. The authors describe a case of a mandibular juvenile ossifying fibroma presenting in a 14-year-old boy in conjunction with congenitally missing teeth and review the histology, clinical behavior, and management of these uncommon but disfiguring lesions.