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J Korean Acad Pediatr Dent. 2006;33(1): 122-130.
MULTIPLE CONGENITAL MISSING TEETH : CASE REPORT
신정근, 김재곤, 양연미, 김성희, 백병주
전북대학교 치과대학 소아치과학교실 및 구강생체과학연구소
Corresponding Author: 백병주 ,
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ABSTRACT
Congenital Missing Teeth(hypodontia, oligodontia) is the developmental absence of one or more teeth. It has been reported as being the most common anomaly of dental development in human, relatively common in the permanent dentition. In a recent review, Vastardis has quoted incidence ranges of 1.6%~9.6% in the permanent dentition. Brook has quoted a prevalence of 3.5%~6.5% in most populations, with severe hypodontia, defined as the absence of six or more teeth, having a prevalence of 0.3~0.4%. The most commonly affected teeth are third molars, followed by maxillary lateral incisor, and second premolars. The etiology is unknown, several hypotheses include trauma, nutritional deficiency, infection, metabolic abnormalities, systemic disease and genetic influence. The multiple congenital missing is commonly associated with specific syndrome or severe systemic abnormalities such as cleft lip & palate and Down's syndrome. These cases present that children have multiple congenital missing teeth in the permanent dentition, without any systemic disease. Management of this condition must be considered orthodontic and prosthodontic treatment comprehensively. In these cases, children were treated by space maintainer or orthodontic appliance and follow-up checked.
Keywords: Congenital missing | Oligodontia | Hypodontia
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