Cementoblastoma

A cementoblastoma is a benign odontogenic neoplasm of cementoblasts and cementum and is seen most frequently involving the mandibular premolars or first molars of young adults. Cementoblastomas appear as a well-defined radiopacity or mixed density lesion with an amorphous or spoke-wheel pattern attached to and surrounding the root of a vital tooth. The outline of the roots are usually obscured and external root resorption may be seen as well. Pain and swelling can also be present. Suspected cementoblastomas should be biopsied and sent for pathological evaluation.