Journal of the korean academy of Pediatric Dentistry (대한소아치과학회지)

Korean Academy of Pediatric Dentistry (대한소아치과학회)
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Non-syndromic Multiple Supernumerary Teeth in a Family : Case Reports

가족에서 발생한 비증후군성 다수 과잉치 : 증례 보고

  • Bae, Doohwan (Department of Pediatric Dentistry, Wonju Severance Christian Hospital, Yonsei University) ;
  • Kim, Jihun (Department of Pediatric Dentistry, Wonju Severance Christian Hospital, Yonsei University)
  • 배두환 (연세대학교 원주세브란스 기독병원 소아치과) ;
  • 김지훈 (연세대학교 원주세브란스 기독병원 소아치과)
  • Received : 2014.09.26
  • Accepted : 2014.10.16
  • Published : 2015.02.28
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Abstract

Supernumerary teeth (SNTs) refer to extra teeth over normal numbers. SNTs can influence adjacent teeth and structure. Therefore, it is important to find SNTs before they cause problems and to decide when to extract them. Etiology of SNTs has not exactly been found, but it has been proposed that genetic and environmental factors are associated. SNT appears as a single unit in most cases and multiple SNTs usually occur as a part of a syndrome. Non-syndromic multiple SNTs are rarely seen. This report is to document the occurrence of multiple supernumerary premolars in a father and his three sons. Heritage is an important factor in SNT development so familial history is important for early detection of SNT.

과잉치는 영구치열 또는 유치열에서 정상적인 개수의 치아 외에 추가적으로 발생한 치아를 말한다. 과잉치는 인접 치아와 구조물에 여러 가지 영향을 미칠 수 있기 때문에 영향을 미치기 전에 과잉치를 조기에 발견하여 관찰하며 치료계획을 세우는 것이 중요하다. 과잉치의 원인은 아직 정확하게 밝혀지지 않았으나 유전 및 환경적인 요소들이 기여한다고 추측이 되고 있다. 과잉치가 발생하는 경우에 하나의 과잉치가 발생하는 경우가 대부분이고 다수의 과잉치가 발생하는 경우에는 증후군의 일부로서 발생하는 경우가 많다. 증후군과 관계없이 여러 개의 과잉치가 발생하는 것은 매우 드물다. 한 남성과 그의 세 아들에게서 소구치 부위에 비증후군성 다수 과잉치가 발견되었기에 이 증례들에 대해 보고하고자 한다. 이 증례들은 과잉치 발생에 있어서 유전이 큰 영향을 미치며 가족력이 과잉치 조기발견의 중요한 단서가 될 수 있다는 것을 보여준다.

Keywords

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