Journal of Oral Medicine and Pain

  • 제32권3호
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  • Pages.293-303
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  • 2007
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  • 2288-9272(pISSN)
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  • 2383-8493(eISSN)
대한안면통증구강내과학회 (Korean Academy of Orofacial Pain and Oral Medicine)
권호 표지

비정복성 관절원판변위와 전치부 개교합 발생간의 관계

The Relationship between Anterior Disc Displacement without Reduction and Development of Anterior Open Bite

  • 허윤경 (부산대학교 치과대학 구강내과학교실) ;
  • 고명연 (부산대학교 치과대학 구강내과학교실) ;
  • 안용우 (부산대학교 치과대학 구강내과학교실)
  • Hur, Yun-Kyung (Department of Oral Medicine, College of Dentistry, Pusan National University) ;
  • Ko, Myung-Yun (Department of Oral Medicine, College of Dentistry, Pusan National University) ;
  • Ahn, Yong-Woo (Department of Oral Medicine, College of Dentistry, Pusan National University)
  • 발행 : 2007.09.30
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초록

목적 : 비정복성 관절원판변위와 연관되어 전치부 개교합이 발생하는 원인과 교합장치 치료가 개교합 발생과 연관이 있는 지를 살펴보고자 한다. 재료 및 방법 : 2년간 경북대학병원 구강내과에 턱관절 질환으로 내원한 환자 중에 임상적으로 비정복성 관절원판변위로 진단된 환자를 대상으로 파노라마, 측방 횡두개상 그리고 측방 두부방사선 사진을 촬영하였다. 환자는 3군으로 나누었으며 1군은 처음 병원에 내원할 때 개교합이 있거나 교합장치 치료를 제외한 치료도중에 갑자기 개교합이 유발된 군(22명), 2군은 교합장치 치료 도중에 개교합이 발생한 군과 이 기간동안 예전에 이미 교합장치 치료도중 개교합이 발생한 후 정기적 관찰 환자를 포함한 군(16명). 그리고 3군은 교합장치 치료 후에도 개교합이 발생하지 않은 군(20명)으로 구성되었다. 측방 두부방사선 계측으로 개교합 발생과 안면부 골격 형태의 연관성을 한국인 정상 교합자들의 평균치와 각 3군 간의 t-test 비교와 ANOVA를 이용해 3군 간의 골격 형태를 비교 조사하였다. 결과 : 1. 1군과 2군은 정상 교합자들의 평균치와 비교했을 때 대부분의 경우에서 유의한 차이가 있었으며, 1, 2, 3군 모두에서 하악의 크기와 형태를 나타내는 변수들과 더 작은 ANB, 더 큰 FMA 값을 보였다. 2. 세군 간의 비교에서 1군과 2군은 3군에 비해 더 큰 하악하연각 (a larger FMA, a larger SN to mandibular plane angle), 짧은 하악지, 더 큰 하악각을 가졌으며, 1군과 2군 간은 통계학적 유의한 차이가 없어 비슷한 수직적 부조화가 큰 골격형태를 가졌으며, 3군은 1, 2군과는 달랐다. 결론 : 이상의 결과로 미루어 1군과 2군은 수직적 부조화가 큰 안모 형태를 보여 저작근의 작용 방향과 저작근 부착 위치에 따른 하악의 후하방 회전의 결과로 전치부 개교합이 발생하는 것으로 생각된다. 그리고 수직적 부조화가 큰 경우일 때는 수직 고경의 변화를 일으키는 것은 좀 더 주의가 필요하리라 생각한다.

The purpose of this paper is to evaluate if there is a relationship between anterior disc displacement without reduction and development of anterior open bite, and a relation between occurrence of open bite and occlusal appliance therapy. In general, the statistically significant differences were found between the Group 1 and 2 and normal mean group. The variables that represent mandibular size and form, showed a statistical significance in all 3 groups. Also 3 groups patients had a smaller ANB, a larger FMA than normal mean group. When we compared the 3 groups with respect to all cephalometric measurements by One-way analysis of variance (ANOVA), group 1 and 2 patients had a larger FMA, a larger SN to mandibular plane angle, a larger maxillomandibular plane angle, a larger occlusal plane to mandibular plane angle, a smaller total posterior facial height/total anterior facial height(%), and a larger gonial angle than group 3. The statistically significant differences were not found between the Group 1 and 2, and skeletal patterns were similar. Thus, morphologic features of patients with vertical discrepancies may represent a risk factor for the development of anterior open bite with or without occlusal appliance treatment. In case of patients with vertical discrepancy, we may have to be more careful when inducing a change of the vertical dimension.

키워드

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