Cementoblastoma

Synonyms

True cementoma

Definition

The cementoblastoma is a rare, benign neoplasm of cementoblasts. The transformed cementoblasts produce a mass of cementum (or cementum-like material) fused to the root surface of a tooth. Interestingly, cementoblastoma shares many histopathologic similarities with osteoblastoma. However, the former is clearly odontogenic, whereas the latter is osseous in origin.

Clinical Features

• Incidence

  The incidence is unknown. The cementoblastoma is a rare tumor. Various large-scale studies have reported the relative frequency of cementoblastoma among odontogenic tumors to range from 0.1 % to 4.2 % (Praetorius 2009).

• Age

  The tumor often affects young individuals, with an average age at diagnosis of 21 years. Among reported cases, there is a broad age range of 6–71 years (Brannon et al. 2002).

• Sex

  There is a slight male predilection, with a male-to-female ratio of 1.4:1 (Brannon et al. 2002).

• Site

  The majority of cases (80 %) arise in the mandible, most often in...