Finite element stress and strainanalysis of the lateral incisor

• Main Authors: Houng-En Lo, 駱鴻恩
• Other Authors: Min-Wen Wang
• Format: Others
• Language: zh-TW
• Online Access: http://ndltd.ncl.edu.tw/handle/04371794889997886136

碩士 === 國立高雄應用科技大學 === 機械與精密工程研究所 === 100 === This reaeaech uses the reversed engineering method to build the digital surface of lateral incisors. At first we get the scan image by using computer tomography(CT) from a patient's mouth. Then we use the Mimics software to process the scan images through the greyscale thresholding and to complete the contour of each section. Finally, we can finish constructing the tooth model. About alveolar bone model, we also use the scan images to build the full alveolar bone model and the periodontal ligament model by CAD software.Furthermore, in order to know the shape factor, we build the cuboid alveolar bone model to compare with the full alveolar bone model. In this research, we analysis the distribution and the maximum value of stress and strain, compare the shape factor of alveolar bone with and without the periodontal ligament. Experiment results show that the distribution of stress and strain should be centralized on the cervical line significantly. According to the results, the advantage of periodontal ligament can disperse the stress and the strain, which will not be centralized on the alveolar bone.