악교정수술 환자에서 교합기 석고 모형과 측면두부방사선사진의 교합평면에 관한 비교 연구

• 영문명: THE COMPARATIVE STUDY FOR OCCLUSAL PLANE BETWEEN ARTICULATED CAST MODEL AND CEPHALOGRAM IN ORTHOGANTIHIC SURGERY PATIENTS
• 발행기관: 대한구강악안면외과학회
• 저자명: 서경숙(Kyung-Suk Seo) 박미화(Mi-Hwa Park) 이주현(Ju-Hyun Lee) 김철환(Chul-Hwan Kim) 채종문(Jong-Moon Chae)
• 간행물 정보: 『대한구강악안면외과학회지』대한구강악안면외과학회지 제29권 제4호, 239~244쪽, 전체 6쪽
• 주제분류: 의약학 > 내과학
• 파일형태: PDF
• 발행일자: 2003.08.30

영문 초록

The common errors in preoperative treatment plan for the orthognathic surgery can be occurred during cast impression, cast mounting procedure with face-bow transfer, surgical stent fabrication, and so on. One of the most common errors exists during mounting process of the model on the articulator. Accurate mounting of dental casts to articulator should be achieved by transferring the 3-dimensional spatial relationship of the maxillary arch to an articulator. A face-bow is used for transfer this relationship to articulator, usually by relating the face-bow to a plane of reference of maxillary cast. The purpose of this study is evaluation of the accuracy of face-bow transferring of maxillary model to the articulator. The maxillary casts of thirty patients for orthognathic surgery were mounted on articulator with an face-bow instrument. The relationship of occlusal plane angle to Frankfort horizontal plane relations were compared the cephalogram with the cast-mounted articulator. As a result of this study, the significant difference between the maxillary occlusal planes angle in the cephalogram and articulator were found . The results were followed, 1. The mean occlusal plane angle in cast-mounted articulator was 13.5􀆆(SD±5.4). 2. The mean occlusal plane angle in cephalogram was 10.4􀆆(SD±4.3). 3. The mean difference of occlusal plane angle between cast-mounted articulator and cephalogram was 3.3􀆆(SD±4.6). According to the result, we should suggest that the occlusal plane angle to Frankfort plane in cast-mounted articulator is more steeper than that of cephalogram. And then, maxillofacial surgeon should try to get a more predictable result by suggesting the proper correction method and mounting the cast accurately.

키워드

Orthognathic surgery Occlusal plane angle Articulator