Fibrous Dysplasia (Ossifying Fibroma) of the Maxilla

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Abstract
Ossifying fibroma of the maxilla is a relatively rare tumor but presents a difficult cosmetic problem in treatment. The etiology is unknown but several theories are presented. Symptoms are usually minimal with painless swelling causing facial assymetry the most common. X-rays are helpful in diagnosis but other laboratory tests are usually noncontributory. Treatment is by surgical excision. When the tumor is small it may be removed through an incision in the bucco-alveolar sulcus; however, when the tumor is large, a lip-splitting Weber-Fergusson incision is necessary to gain adequate exposure. While complete extirpation is essential to prevent recurrence, extensive or mutilating operations are not warranted since the tumor is benign and no malignant changes have been noted.