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AMELOBLASTIC ODONTOMA OCCURRED IN THE MANDIBLE

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Abstract

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Ameloblastic odontoma is a mixed odontogenic tumor, which is characterized as being
extremely rare, displaying aggressive clinical behavior, resembling a mixed radiopaque
and radiolucent radiographic appearance and containing both ameloblasloma and a
composite odontoma. Seven-year-old boy complaining of delayed eruption of the left
lower permanent 1st molar came to the department of Oral & Maxillofacial Radiology at
Chonbuk National University Hospital.
The list of our radiographic differential diagnosis included the dental follicle, compound
odontoma, complex odontoma and Cystic odontoma. The microscopic analysis showed the
lesion with the characteristics of an ameloblastic odontoma.
The obtained results were as follows;
1. The area asymptomatic, but 4he delayed eruption of the left lower permanent 1st
molar was observed.
2. Radiographically, well-declined widened pericoronal radiolucency containing several
tooth-like radiopacities involving the impacted left lower permanent 1st molar and
well-declined round radiolucency containing irregular radiopaque mass were observed.
3. Hislopathologically, several tooth-like structures, odontoma components with the
area of typical enamel, dentin and pulp ameloblastic components with typical follicular
ameloblastoma were observed.

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