Journal of the Korean Academy of Pediatric Dentistry 2007;34(4):679-684.
Published online November 30, 2007.
COMPOUND ODONTOMA WITH CONGENITAL MISSING OF THE PERMANENT TEETH: CASE REPORTS
Ha-Na Kim, Jae-Gon Kim, Byeong-Ju Baik, Ji-Hye Han, Yeon-Mi Yang
Department of Pediatric Dentistry and Institute of Oral Bioscience, School of Dentistry, Chonbuk National University 
영구치의 선천적 결손을 동반한 복합 치아종
김하나, 김재곤, 백병주, 한지혜, 양연미
전북대학교 치과대학 소아치과학교실 및 구강생체과학연구소
Correspondence:  Ha-Na Kim,  Tel: 82-63-250-2121, Email: hana4142@hanmail.net
Abstract
Odontoma is the most common benign odontogenic tumors, and have been defined as mixed odontogenic tumor composed of epithelial and mesenchymal cells. Odontoma is believed to be hamartomatous rather than neoplastic in nature. The classification by WHO divides odontoma into 2 groups such as complex odontoma and compound odontoma. Compound odontoma comprises dental tissues, resembling the morphology of a tooth and has predilection for the anterior maxilla. In contrast, complex odontoma has unorganized mass, not resembling the normal tooth and has predilection for the posterior mandible. Odontoma is almost asymptomatic, so it is usually found on routine radiographic examination. Common presenting symptom is impacted or unerupted permanent teeth and retained primary teeth, but coexistent odontoma and congenital missing of permanent teeth is a very rare condition. The recommended treatment for an odontoma is conservative surgical excision, with care taken to remove the surrounding soft tissue. This report presents 2 patients with compound odontoma of the mandible who have congenital missing of the permanent teeth.
Key Words: Compound odontoma, Congenital missing


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