209103 μCT及び歯科用CBCTに基づく下顎骨の有限要素モデリングとインプラント周辺の応力解析(OS05 生体の計測とモデリング1,オーガナイズド・セッション)

概要

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With the progress of CT machines, image-based finite element simulation is becoming a useful tool for oral biomechanics research. The authors have so far presented the microscopic stress evaluation for peri-implant trabecular bone based on the precise micro-CT images. This paper discusses the possibility of applying cone beam CT (CBCT) images, which is used for dental diagnosis for real patients, to biomechanics simulation. Although severe artifact was seen in CBCT images, it was removed carefully. The comparison of some representative dimensions between micro-CT and CBCT told us that there was approximately 5% relative error and more at some locations. However, the stress distribution evaluated by histogram that was predicted by CBCT images agreed well with that obtained by micro-CT, especially near the oral implant. This result implies future possibility to analyze the stress for real patient, which can lead to the investigation of the correlation between stress and clinical problems quantitatively.
一般社団法人日本機械学会の論文
2011-03-17