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유한요소법을 이용한 환자별 교정시스템 구축의 기초 알고리즘 개발과 적용
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- Authors
- Issue Date
- 1997
- Publisher
- 대한치과교정학회
- Citation
- 대한치과교정학회지 1997: 27: 815-824.
- Keywords
- Finite Element Method ; Individual Malocclusion ; Image Processing Technique ; Rotational Matrix
- Abstract
- The purpose of this study is to develop the basic algorithm for the finite element method modeling of individual malocclusions. Usually, a great deal of time is spent in preprocessing. To reduce the time required, we developed a standardized procedure for measuring the position of each tooth and a program to automatically preprocess. The following procedures were carried to complete this study. 1. Twenty-eight teeth morphologies were constructed three-dimensionally for the finite element analysis and saved as separate files. 2. Standard brackets were attached so that the FA points coincide with the center of the brackets. 3. The study model of a patient was made. 4. Using the study model, the crown inclination, angulation, and the vertical distance from the tip of a tooth was measured by using specially designed tools. 5. The arch form was determined from a picture of the model with an image processing technique. 6. The measured data were input as a rotational matrix. 7. The program provides an output file containing the necessary information about the three-dimensional position of teeth, which is applicable to several finite element programs commonly used. The program for a basic algorithm was made with Turbo-C and the subsequent outfile was applied to ANSYS. This standardized model measuring procedure and the program reduce the time required, especially for preprocessing and can be applied to other malocclusions easily.
- ISSN
- 1225-5610
- Language
- Korean
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