OS1001 マイクロCTおよび歯科用コーンビームCT画像に基づく下顎骨の応力解析(生体と材料力学,オーガナイズドセッション)

概要

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In the use of dentalimplant, a conebecm CT will be frequently utilized to capture the 3D structure af hmnan mandible. However, a question arises concerning the accuracy of conebeam CT images not only for cortical bone but also for trabecular bone. In this study, the comparison between conebearn CT and micro CT has been carried out for the same human mandible by means of finite element stress analysis. The position, angle and depth of a single implant were determined by the thickness of cortical bone and the distance to blood vessels. Then, the numerical results were not in coincidence between conebeam CT and micro CT, although conebeam CT images were taken with highest resolution. On the other hand, the analyses for incilned implant cases had only 10% error, which implied an anisotepy in aocuracy.
一般社団法人日本機械学会の論文
2009-07-24