Journal of the Korean Association of Oral and Maxillofacial Surgeons

  • 제29권5호
  • /
  • Pages.265-271
  • /
  • 2003
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  • 2234-7550(pISSN)
  • /
  • 2234-5930(eISSN)
대한구강악안면외과학회 (The Korean Association of Oral and Maxillofacial Surgeons)
권호 표지

하악골 후방이동시 악골고정방법에 따른 악간고정기간 중 치아 및 악골의 위치변화에 대한 연구

A STUDY ON POSITIONAL CHANGES OF THE TEETH AND MANDIBLE ACCORDING TO FIXATION TYPE DURING INTERMAXILLARY FIXATION PERIOD AFTER MANDIBULAR SETBACK

  • 박선배 (단국대학교 치과대학 구강악안면외과학교실) ;
  • 김경욱 (단국대학교 치과대학 구강악안면외과학교실)
  • Park, Sun-Bae (Departmentment of Oral and Maxillofacial Surgery, College of Dentistry, Dankook University) ;
  • Kim, Kyung-Wook (Departmentment of Oral and Maxillofacial Surgery, College of Dentistry, Dankook University)
  • 발행 : 2003.10.30
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초록

Skeletal relapse is known as a complication following orthognathic surgery of mandibular prognathism and occurring during intermaxillary fixation period. Therefore relapse of teeth and skeleton during intermaxillary fixation period is considered as a important problem of orthognathic surgery. In this study, cephalolateral radiographs taken at pre-operation, immediate post-operation and after release of intermaxillary fixation were measured for evaluation of dental and skeletal relapse in 30 cases. The cases were classified as screw fixation group and plate fixation group, then we compared magnitude of dental and skeletal changes of each group. The results were as follows 1. The $\underline{1}$ SN angle increased at immediate post-operation with a mean value of $0.12^{\circ}$ and at intermaxillary fixation period with a mean value of $0.43^{\circ}$ (p>0.05). 2. The $\overline{1}$ MP angle decreased with a mean value of $0.14^{\circ} at immediate post-operation and with a mean value of $1.28^{\circ} during intermaxillary fixation period but there were not significant difference(p>0.05). 3. There were not significant difference in magnitude of dental position changes between screw fixation group and plate fixation group(p>0.05). 4. Gonial angle increased with a mean value of $0.62^{\circ} during intermaxillary fixation period. Each group showed changes of gonial angle during intermaxillary fixation period but there were not significant difference(p>0.05).

키워드

참고문헌

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