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A radiodense mass measuring 20 x 9 x 9 mm in the alveolar mandibular bone, with radiodensities similar to dental enamel and dentin. Irregularly shaped, similar to small denticles. Small odontoma located in the marginal bone distal to remnant tooth 6.3. Agenesis of tooth 3.4 and inclusion of 3.4, located on the other side of the medullary mandibular bone in the apical zone below tooth 4.3.
Odontomas are benign tumors of odontogenic origin consisting of enamel, dentin, cementum and pulpal tissue. They display slow growth and are asymptomatic. Usually, the patient is evaluated for tooth eruption disturbances, like this case, where two primary teeth are still present in an adult.
There are two types of odontomas: compound and complex. The compound is approximately twice as common as the complex. Both are mixed odontogenic tumors since they consist of epithelial and mesenchymal tissue, which differentiate into enamel, dentin and pulp.
- 1. Kämmerer PW, Schneider D, Schiegnitz E, Schneider S, Walter C, Frerich B, Kunkel M. Clinical parameter of odontoma with special emphasis on treatment of impacted teeth-a retrospective multicentre study and literature review. Clinical oral investigations. 20 (7): 1827-35. doi:10.1007/s00784-015-1673-3 - Pubmed