The Journal of Korea Assosiation for Disability and Oral Health (대한장애인치과학회지)

Korean Association for Disability and Oral Health (대한장애인치과학회)
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TREATMENT OF ECTOPICALLY ERUPTING FIRST PERMANENT MOLAR IN CHRONIC MYELOGENOUS LEUKEMIA

전신 질환을 동반한 환아에서 나타난 제1대구치 이소맹출의 처치

  • Kim, Hyun-Jung (Department of Pediatric Dentistry, School of Dentistry, Pusan National University) ;
  • Kim, Min-Jeong (Department of Pediatric Dentistry, School of Dentistry, Pusan National University) ;
  • Noh, Hong-Seok (Department of Pediatric Dentistry, School of Dentistry, Pusan National University) ;
  • Kim, Shin (Department of Pediatric Dentistry, School of Dentistry, Pusan National University) ;
  • Jeong, Tae-Sung (Department of Pediatric Dentistry, School of Dentistry, Pusan National University)
  • 김현정 (부산대학교 치의학전문대학원 소아치과학교실) ;
  • 김민정 (부산대학교 치의학전문대학원 소아치과학교실) ;
  • 노홍석 (부산대학교 치의학전문대학원 소아치과학교실) ;
  • 김신 (부산대학교 치의학전문대학원 소아치과학교실) ;
  • 정태성 (부산대학교 치의학전문대학원 소아치과학교실)
  • Received : 2011.06.06
  • Accepted : 2011.06.15
  • Published : 2011.06.30
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Abstract

The ectopic eruption is defined as abnormal eruption which gives to displacement of the teeth and abnormal root resorption of adjacent teeth. The prevalence of ectopic eruption is reported to vary 2~6%, most of them are in the maxilla. Etiologic factors include narrow maxilla, large maxillary teeth, inclined eruption path of the first molar, retruded position of the maxilla and hereditary factor. Irreversible ectopic eruption where the second primary molar is lost often causes mesial tipping and rotation of the permanent molar, unfavorable occlusion and space deficiency for the second premolar. Ectopically erupted teeth should be treated early to maintain normal development of the dentition, harmony of facial growth and occlusal support. The method of the treatment are classified as follows : appliances that is positioned at the contact point for unlocking and the distal movement, fixed appliance that is connected to more than one tooth, and occlusion guiding method after disking or extraction of the second deciduous molar. A case report of a patient with bilaterally ectopic eruption of maxilla and mandible first permanent molar was present. Also, the patient who had experienced the chronic myelogenous leukemia, show various dental developmental complications. The ectopic eruption was treated with a Halterman appliance that was a effective way of correcting of ectopic eruption of the permanent first molar.

제1대구치의 이소맹출은 국소적 원인과 유전적 원인의 조합에 의한 다양한 요소에 의해서 유발된다. 주기적인 검진과 방사선학적 검사를 통해 비가역적 이소맹출로 판단 될 경우, 제2유구치 조기 상실에 의해 제1대구치의 근심경사나 회전 및 복잡한 교정적인 문제를 일으킬 수 있으므로 적절한 개입이 필요하다. 본 증례는 항암치료의 기왕력이 있는 만성 골수성 백혈병 환아에서 나타난 제1대구치의 이소맹출을 Halterman appliance를 이용하여 정상적인 맹출로 유도할 수 있었다.

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