Consideration of shear modulus in biomechanical analysis of peri-implant jaw bone: Accuracy verification using image-based multi-scale simulation
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概要
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The aim of this study was to clarify the influence of shear modulus on the analytical accuracy in peri-implant jaw bone simulation. A 3D finite element (FE) model was prepared based on micro-CT data obtained from images of a jawbone containing implants. A precise model that closely reproduced the trabecular architecture, and equivalent models that gave shear modulus values taking the trabecular architecture into account, were prepared. Displacement norms during loading were calculated, and the displacement error was evaluated. The model that gave shear modulus values taking the trabecular architecture into account showed an analytical error of around 10-20% in the cancellous bone region, while in the model that used incorrect shear modulus, the analytical error exceeded 40% in certain regions. The shear modulus should be evaluated precisely in addition to the Young modulus when considering the mechanics of peri-implant trabecular bone structure.
著者
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Ide Yoshinobu
Department Of Anatomy Tokyo Dental College
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Abe Shinichi
Department Of Anatomy Tokyo Dental College
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Takano Naoki
Department Of Manufacturing Science Osaka University
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Naito Hiroyoshi
Department Of Chemistry And Organosilicon Research Laboratory
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MATSUNAGA Satoru
Department of Anatomy, Tokyo Dental College
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Matsunaga Satoru
Department Of Anatomy Tokyo Dental College
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Tamatsu Yuichi
Department Of Neurology Gross Anatomy Kagoshima University Graduate School Of Medical And Dental Sci
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NAITO Hiroyoshi
Department of Anatomy, Tokyo Dental College
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