치아 기준의 악교정 수술용 석고모형 수술, 과연 가능하고 정확한가
Development of New Orthognathic Model Surgery Technique Based on the Reference Points onto the Teeth and the Use of Occlusal Index
이승훈, 오성섭, 이충국, 박경란, 이상휘,
소속 상세정보
이승훈 ( Lee Seung-Hoon ) - 리더스치과의원
오성섭 ( Oh Seong-Seob ) - 연세대학교 치과대학 구강악안면외과학교실
이충국 ( Yi Choong-Kook ) - 연세대학교 치과대학 구강악안면외과학교실
박경란 ( Park Kyung-Ran ) - 연세대학교 치과대학 구강악안면외과학교실
이상휘 ( Lee Sang-Hwy ) - 연세대학교 치과대학 구강악안면외과학교실
KMID : 0360120110330020128
Abstract
Purpose: Errors in orthognathic model surgery occur during the planning, measuring and/or moving of the models. However, there has been little effort to find ways to reduce these errors. In this study, we introduce a new orthognathic model surgery technique (Yonsei method) which adopts the tooth point as the reference and the occlusal index as a moving vehicle for the model.
Methods: The technique consists mainly of: 1) measuring the three-dimensional lengths of model points, 2) fabricating and moving the occlusal index and 3) verifying the movement. Then we compared the accuracy of the Yonsei method to conventional methods, with special reference made to influencing factors.
Results: Errors for the Yonsei method with the occlusal index were reduced to the range of 0.61∼1.04 mm in three-dimension, providing a more accurate model surgery technique than conventional methods which have errors ranging from 0.77∼3.11 mm.
Conclusion: It provided us a more accurate model surgery technique based on the reference points onto the teeth and the use of occlusal index.
키워드
Model surgery; Errors; Occlusal index; Tooth point reference; Orthognathic surgery
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