Odontomes are the most common odontogenic tumors, composed of enamel, dentin, pulp and cementum. They are classified as compound odontomes, made up of multiple tooth-like structures, or complex odontomes, with a disorganized mass resembling dental tissues. Compound odontomes typically appear before age 20, with no sex predilection, most often in the anterior maxilla and are usually asymptomatic, though larger ones can cause jaw expansion. Radiographically, compound odontomes appear as multiple small tooth-like structures surrounded by a radiolucent rim and are associated with an unerupted tooth.

1. ODONTOMA AMIN ABUSALLAMAH COMPOUND

2. INTRO Most common odontogenic tumor. Considered hamartomas, rather than neoplasm. In a fully developed odontoma, mainly enamel and dentin along with variable amounts of pulp and cementum are seen.

3. CLASSIFICATION Odontomas are further sub classified into COMPOUND ODONTOMA COMPLEX ODONTOMA

4. CLINICAL FEATURES Age incidence: First 2 decades. Sex incidence: None. Site predilection: Anterior maxilla. Signs & symptoms: Mostly asymptomatic, small, seldom exceeding the size of tooth missing in the region. Larger lesions may cause jaw expansion.

5. Cont.. Gross pathological specimen showing a mass of more than 20 tooth like malformed structures.

6. RADIOLOGICAL FEATURES This type is composed of multiple, small tooth like structures. The entire mass appears surrounded by a radiolucent rim. An unerupted tooth is usually associated with both types of odontomes which impedes normal eruption of the tooth.

7. References Soames JV, Southam JC. Oral pathology/. 3 rd ed. Oxford 2002. Shafer WG, Hine MK, Levy BM. A text book of oral pathology. 6 th ed. W.B. Saunders Company. Phil, London, Toronto, 2005.

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