Journal of the korean academy of Pediatric Dentistry (대한소아치과학회지)

Korean Academy of Pediatric Dentistry (대한소아치과학회)
권호 표지

TREATMENT OF ECTOPICALLY ERUPTED MAXILLARY FIRST PERMANENT MOLARS

이소맹출 한 상악 제1대구치의 맹출 유도

  • Yun, Hyo-Jin (Department of Pediatric Dentistry, Oral Science Research Center, College of Dentistry, Gangneung-Wonju National University) ;
  • Park, Ho-Won (Department of Pediatric Dentistry, Oral Science Research Center, College of Dentistry, Gangneung-Wonju National University) ;
  • Lee, Ju-Hyun (Department of Pediatric Dentistry, Oral Science Research Center, College of Dentistry, Gangneung-Wonju National University) ;
  • Seo, Hyun-Woo (Department of Pediatric Dentistry, Oral Science Research Center, College of Dentistry, Gangneung-Wonju National University)
  • 윤효진 (강릉원주대학교 치과대학 소아치과학교실 및 구강과학연구소) ;
  • 박호원 (강릉원주대학교 치과대학 소아치과학교실 및 구강과학연구소) ;
  • 이주현 (강릉원주대학교 치과대학 소아치과학교실 및 구강과학연구소) ;
  • 서현우 (강릉원주대학교 치과대학 소아치과학교실 및 구강과학연구소)
  • Received : 2010.08.30
  • Accepted : 2010.10.25
  • Published : 2010.11.30
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Abstract

Ectopic eruption means the eruption of the tooth in an abnormal position due to multiple factors, which found most frequently in maxillary fist permanent molars, mandibular lateral incisors and maxillary permanent canines. Ectopic eruption of the maxillary first permanent molar occurs when the molar erupts with a more mesial angulation than normal, and locks itself in an atypical resorption on the distobuccal root of the second primary molar. The maxillary first permanent molar plays important roles for mastication and occlusion, so ectopically erupted maxillary first permanent molars should be relocated into proper position. Treatment options are separation by insertion of the brass wire or elastic rings, preparation of distal aspect of the maxillary second primary molar, using fixed or removable appliance with finger spring, and placement of space maintainer or space regainer after extraction of the maxillary second primary molar. We report three cases treated of ectopically erupted maxillary first permanent molar by re-setting of stainless steel crowns, placement of brass wire and using active plate. We could find out distal movement of maxillary first permanent molars into proper position and normal occlusion.

이소맹출(ectopic eruption)은 여러 가지 원인들에 의해 치아가 비정상적 위치로 맹출하는 경우를 말하며, 주로 상악 제1대구치, 하악 측절치 그리고 상악 견치에서 발생된다. 이소맹출 한 상악 제1대구치는 정상보다 근심방향으로 맹출하여, 동측상악 제2유구치의 원심협측 치근을 흡수시키며, 결국 상악 제1대구치는 상악 제2유구치 하방에 걸리게 된다. 상악 제1대구치는 저작기능 및 교합에 중요한 역할을 하고 있으므로, 이소맹출 한 상악 제1대구치는 적절한 위치로 이동이 필요하다. 상악 제1대구치를 적절한 위치로 이동하기 위한 치료방법으로는 brass wire 또는 elastic ring을 이용한 separation, 상악 제2유구치의 원심면 삭제, finger spring을 포함한 고정성 또는 가철성 장치, 상악 제2유구치를 발치한 후 공간유지장치 또는 공간회복장치의 이용 등이 있다. 본 증례들은 강릉대학교 치과병원에 내원한 환자들에서 이소맹출 한 상악 제1대구치를 기성금관의 재시적, brass wire의 적용, active plate를 이용하여 적절한 위치로 이동시켜 양호한 교합을 이루었기에 이를 보고하는 바이다.

Keywords

References

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