Journal of the korean academy of Pediatric Dentistry (대한소아치과학회지)

Korean Academy of Pediatric Dentistry (대한소아치과학회)
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SUPPLEMENTAL PERMANENT MAXILLARY LATERAL INCISORS(DOUBLE LATERAL INCISORS) : CASE REPORT

상악 측절치에 발생한 보충치형의 과잉치 : 증례보고

  • Jung, Mi-Sang (Department of Pediatric Dentistry, School of Dentistry, Seoul National University) ;
  • Hyun, Hong-Keun (Department of Pediatric Dentistry, School of Dentistry, Seoul National University) ;
  • Kim, Young-Jae (Department of Pediatric Dentistry, School of Dentistry, Seoul National University) ;
  • Jang, Ki-Taeg (Department of Pediatric Dentistry, School of Dentistry, Seoul National University) ;
  • Lee, Sang-Hoon (Department of Pediatric Dentistry, School of Dentistry, Seoul National University) ;
  • Kim, Chong-Chul (Department of Pediatric Dentistry, School of Dentistry, Seoul National University) ;
  • Hahn, Se-Hyun (Department of Pediatric Dentistry, School of Dentistry, Seoul National University) ;
  • Kim, Jung-Wook (Department of Pediatric Dentistry, School of Dentistry, Seoul National University)
  • 정미상 (서울대학교 치과대학 소아치과학교실) ;
  • 현홍근 (서울대학교 치과대학 소아치과학교실) ;
  • 김영재 (서울대학교 치과대학 소아치과학교실) ;
  • 장기택 (서울대학교 치과대학 소아치과학교실) ;
  • 이상훈 (서울대학교 치과대학 소아치과학교실) ;
  • 김종철 (서울대학교 치과대학 소아치과학교실) ;
  • 한세현 (서울대학교 치과대학 소아치과학교실) ;
  • 김정욱 (서울대학교 치과대학 소아치과학교실)
  • Received : 2010.10.18
  • Accepted : 2011.01.02
  • Published : 2011.02.28
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Abstract

Supernumerary teeth are in excess of the normal number of teeth in either the primary or permanent dentitions. They are classified into supplemental teeth resembling those of the normal series and rudimentary teeth with abnormal shapes, according to their form. Most of the supernumerary teeth are rudimentary form, and supplemental teeth are much less common. Sulppemental teeth are most common in the permanent maxillary lateral incisor area and clinicians should be careful with differential diagnosis from normal teeth. Unerupted supernumerary teeth may produce several complications such as delayed eruption, displacement of permanent teeth, diastema, root resorption and cyst formation. Early detection and proper treatment plan according to the tooth alignment and root formation stage are important. Here we report 3 cases of unilateral or bilateral normal incisor shaped supernumerary lateral incisors treated by eruption observation, surgical extraction and orthodontic treatment with resin build-up.

치배형성기 발육 이상으로 유치열이나 영구치열에서 정상보다 많이 발생하게 된 치아를 과잉치라 한다. 과잉치는 형태에 따라 정상 치아와 형태가 비슷한 보충치(supplementary tooth)와 형태가 다른 흔적치(rudimentary tooth)로 나눌 수 있다. 대부분의 과잉치는 흔적치의 형태를 가지며 보충치는 드물게 나타난다. 보충치는 상악 측절치 부위에서 호발하며 정상 전치와 유사한 형태와 크기를 갖기 때문에 진단시 특별히 주의를 기울여야 한다. 미맹출 과잉치는 상악 전치의 맹출 장애 및 전위, 치간 이개, 치근 흡수, 낭종 형성 등의 합병증을 유발할 수 있으므로 조기에 진단하고 치아 배열 상태 및 치아 발육 단계에 따라 적절한 치료를 시행하는 것이 중요하다. 본 3 증례는 상악 측절치부에 편측 혹은 양측으로 보충치 형태의 과잉치를 갖는 증례로서 맹출 관찰 및 외과적 발거, 교정 치료 및 레진 수복을 통해 치료하였다.

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References

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