Ossifying fibroma is a benign fibro-osseous lesion that most commonly occurs in the bones of the craniofacial skeleton. Seventy-five percent of these lesions are found in the mandible.1,2 Ossifying fibroma of the maxilla is uncommon. Most diagnoses are made in the third or fourth decade of life, although onset can occur at any age. There is a slight predilection for women (female-male ratio, 1.6:1.0).3