Buccal exostosis

Buccal exostosis is a benign overgrowth of bone that occurs on the outer, or buccal, surface of the alveolar process of the maxilla or mandible. It is a slow-growing, asymptomatic swelling that has a predilection for the maxillary buccal cortex and is usually discovered during routine radiographic examination.

Etiology

The exact cause of buccal exostosis is unknown. However, it is believed to be a reactive process. Some researchers suggest that it may be due to local factors such as occlusal trauma or low-grade infection. Others believe that it may be a developmental anomaly.

Clinical features

Buccal exostosis is usually asymptomatic and is often discovered during routine dental examination or radiographic evaluation. It appears as a hard, bony swelling on the buccal surface of the alveolar process. The overgrowth is usually covered by normal mucosa. It is more common in the maxilla than the mandible and is often bilateral.

Diagnosis

The diagnosis of buccal exostosis is usually made on clinical and radiographic examination. Radiographically, it appears as a dense, radiopaque mass on the buccal surface of the alveolar process. Histologically, it is composed of dense, mature lamellar bone.

Treatment

Treatment is usually not necessary unless the exostosis interferes with the placement of a prosthesis or causes cosmetic concern. If removal is necessary, it can be done under local anesthesia.

See also

• Torus palatinus
• Torus mandibularis
• Exostosis
• Osteoma

References

Buccal exostosis Resources
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