Incidental finding of odontogenic fibroma: case report.

The odontogenic fibroma is a rare, benign tumor of mesodermal origin, and one of the most ill-defined and least understood of all odontogenic neoplasms. 1 It presently is thought to originate from either dental follicle, periodontal ligament, or dental papilla. 2 Bhaskar reported the lesion as being the most common odontogenic tumor comprising approximately 23°70 of all odontogenic lesions. 3 This opinion is based on his identification of the enlarged dental follicle as an odontogenic fibroma, and belief that the distinction between the neoplasm and the hyperplastic dental follicle is often arbitrary. 4 Other reviewers have reported the incidence as being between 3 and 7% of all odontogenic tumors. 5