Palatal tubercles, palatal tori, and mandibular tori: prevalence and anatomical features in a U.S. population.

The prevalence and features of 3 types of exostoses commonly encountered during periodontal surgery were studied in a sample of 328 modern American skulls drawn from the collection at the American Museum of Natural History. Measurements were made of the height, width, and breadth of exostoses. The relationship to teeth or other skeletal structures was also recorded.

Spontaneous bony exposure: a report of 4 cases of idiopathic exposure and sequestration of alveolar bone.

This paper describes 4 cases of spontaneous exposure and sequestration of alveolar bone. While one case was associated with an allergic mucositis, the other three were idiopathic involving large lingual exostoses.