대한치과교정학회지 (The korean journal of orthodontics)

  • 제36권5호
  • /
  • Pages.369-379
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  • 2006
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  • 2234-7518(pISSN)
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  • 2005-372X(eISSN)
대한치과교정학회 (The Korean Association Of Orthodontists)
권호 표지

수직적 안모유헝에 따른 치료 후 교합평면 안정성에 관한 연구

Post-treatment stability of the occlusal plane according to different vertical facial patterns

  • 박정은 (단국대학교 치과대학 교정학교실) ;
  • 이진우 (단국대학교 치과대학 교정학교실) ;
  • 정동화 (단국대학교 치과대학 교정학교실) ;
  • 차경석 (단국대학교 치과대학 교정학교실)
  • Park, Jung-Eun (Department of Orthodontics, School of Dentistry, Dankook University) ;
  • Lee, Jin-Woo (Department of Orthodontics, School of Dentistry, Dankook University) ;
  • Chung, Dong-Hwa (Department of Orthodontics, School of Dentistry, Dankook University) ;
  • Cha, Kyung-Suk (Department of Orthodontics, School of Dentistry, Dankook University)
  • 발행 : 2006.10.30
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초록

본 연구는 수직적 안모유형에 따른 치료 후 교합평면 변화양상을 조사하여 향후 적절한 치료계획과 기전의 설정에 도움이 되고자 시행하였다. 골격성 I급 부정교합으로 진단되어 비발치로 치료받은 성민 60명(남자 28명, 여자 32명)을 대상으로 하였으며, Ricketts법의 facial axis, facial depth, mandibular plane angle, lower face height, mandibular arc의 5개 항목을 이용하여 한국 성인의 정상교합자 통계치의 기준에 따라 short face type (1군), average face type (2군), long face type (3군)으로 분류하였다. 각 군의 치료 전, 치료 종료, 종료 후 1년의 측모두부 방사선사진 계측치를 비교 분석하였다. 1군은 치료 종료 시와 비교하여 유지기간에 일반적 교합평면각, 기능적 교합 평면각, L6/L1, MP-L6 항목이 유의하게 감소하였고(p < 0.01) L1-FOP 항목은 유의하게 증가하였다(p < 0.001). 2군은 유지기간에 유의한 변화를 보이지 않았으며 3군은 유지기간에 기능적 교합평면각이 유의하게 증가하였다(p < 0.05). 기능적 교합평면각의 치료 후 변화량은 각 군 간에 유의한 차이를 보였으며 특히, 1군과 3군 간에 매우 큰 유의성을 보였다. 따라서 치아의 압하, 정출 및 치료 후 전치부 피개 등에 있어 유지기간 중 교합평면각 변화의 고려가 필요하다고 생각된다.

Objective: The purpose of this study was to find changes in the occlusal plane related to different vertical facial patterns and suggest treatment goals and conduct possible treatment mechanisms. Methods: 60 adult patients (28 males, 32 females) who had been diagnosed as Class 1 skeletal malocclusion and treated without extraction were selected. Patients were divided into three groups; short face type (group 1), average face type (group 2) and long face type (group 3), using the data on normal occlusion of Korean adults. Results: The results were achieved by analyzing cephalometric tracings of each group at pre-treatment, end-treatment and post-treatment (about 1 year recall check). The inclination of the occlusion plane tends to gradually increase as the face becomes longer In group 1, COP-X, FOP-X, L6/L1, MP-L6 were significantly decreased, and L1-FOP was significantly increased during the retention period (T3-T2). Group 2 showed no significant change, In group 3, FOP-X was significantly increased during the retention period (T3-T2). During the retention period, FOP-X showed significant change among each group, especially between group 1 and group 3. Conclusion: These results suggest that changes of occlusal plane inclination according to facial vertical pattern need to be considered during the retention period for intrusion, extrusion, and incisor overbite.

키워드

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