We report a case of 15-year-old boy presented with painless swelling of right side of lower jaw since 2 years. A provisional diagnosis of dentigerous cyst involving an impacted lower second premolar was concluded after clinical examination. Radiographs revealed an expanding, well demarcated radiolucency with thin, fine, straight septae, causing root resorption and displacement of adjacent teeth and the impacted tooth was pushed to the inferior border of mandible. Histologically pronounced fibroblastic hypercellularity with epithelial rests and focal areas with dentinoid or cementoid material was seen, suggestive of Central Odontogenic Fibroma (WHO Type). Only eight such cases have been reported in English literature and present one is 9th case.
Odontoma refers to tumor of odontogenic origin. It represents a hamartomatous malformation rather than a neoplasm. Calcified dental tissues are simply an irregular mass bearing no morphologic similarity even to rudimentary teeth known as complex odontoma. Complex odontoma appears radiographically as a radiopaque mass. Complex form of odontoma is less common than compound type. Here, we report such an unusual case of complex odontoma.
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