Micro-computed tomography 영상을 이용한 치아의 컴퓨터 3차원 모델 생성 및 유한요소 분석에의 응용 = Generation of 3-dimensional computer model of teeth from micro-computed tomography images and application to finite element analysis

다국어 초록 (Multilingual Abstract)

Purpose: Among mechanical stress analysis methods of teeth and prosthetic appliances, finite element analysis using computer generated 3-dimensional models has been widely applied. We tested a new method to generate 3-dimensional tooth models which can be applied to finite element analysis. Materials and Methods: Three-dimensional tooth models were generated from micro-computer tomography images using 3-dimensional graphic software and computer aided design (CAD) software, and the models were applied to finite element analysis. Results: The models generated using this method better mimicked the anatomical structure of natural teeth than those generated by other methods. As a sample case, a 3-dimensional model of an upper first molar tooth with a class I cavity was generated using 3-dimensional CAD software. Finite element analysis was carried out using this model by assuming that the cavity was filled with three different materials. Conclusion: The method used in the present study yielded high-quality 3-dimensional models of teeth that can easily be applied to mechanical stress analysis using finite element analysis and other dental applications.