Benign cementoblastoma.

A case of benign cementoblastoma in a 20-year-old man has been reviewed. The lesion was typical and was associated with the mandibular right first molar. The patient initially reported symptoms related to that tooth. Radiographically, the lesion was 1.5 cm in diameter and had a peripheral radiolucent border. Histopathologic examination showed a well-circumscribed mass of cementum. Excision of the tumor with removal of the associated tooth resulted in normal osseous healing and no evidence of recurrence after one year.