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J Korean Acad Pediatr Dent. 2007;34(4): 658-665.
OLIGODONTIA : CASE REPORT
Jeong-Min Son, Nam-Ki Choi, Seon-Mi Kim, Kyu-Ho Yang
Department of Pediatric Dentistry, Chonnam National University School of Dentistry, and Dental Research Institute and Second stage of BK21
Corresponding Author: Nam-Ki Choi ,Tel: 82-62-220-5476, Email: nkchoi@chonnam.ac.kr
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ABSTRACT
Oligodontia is defined as the congenital absence of six or more teeth in dentition, excluding the third molars. The prevalence of congenital missing teeth is about 1.6 to 9.6% of population and the prevalence of oligidontia is about 0.08 to 1.1%. The mandibular second premolar is the most frequently absent after the third molar, followed by the maxillary lateral incisor and upper second premolar. Females seem to be affected slightly more than males. Oligodontia may occur either in isolation, or as a part of a syndrome such as ectodermal dysplasia. Different causes are possible for oligodontia: physical obstruction or distruction of the dental lamina, space limitation, functional abnormalities of the dental epithelium, failure of induction of the underlying mesenchyme, chemotherapy, radiotherapy or genetic factor. Because oligodontia would result in esthetic and functional problems, such as facial asymmetry or occlusal disharmony, early diagnosis from clinical and radiographic examination was necessary. And appropriate treatment plan should be followed. This case report was about oral conditions and treatment of the oligodontia patients who have no specific systemic disease.
Keywords: Oligodontia | Congenital missing teeth | Hypodontia
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