901 人工歯根の三次元生体適応形状解析(J04-1 臨床医歯学における非・低侵襲計測技術の展開(1) 歯科・整形外科における計測および生体シミュレーション,ジョイントセッション,21世紀地球環境革命の機械工学:人・マイクロナノ・エネルギー・環境)

概要

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As one of the matters to get long-term success of treatment of implant curing, it is important that a kinetic load of implant and alveolar bone is reduced or distributed. In this paper, the shape optimization of dental implant was investigated using growth-strain method. At first, we investigated the stress and strain energy density distribution of a dental implant under vertical and inclined forces by using a three dimensional finite element method. Next, growth criterion parameters of fixture and abutment, alveolar bone were defined by mean values of stress of previous three-dimensional finite element method in each total element. And growth strain analysis was performed under the growth criterion parameters of the each analysis model. Then, the optimum shape of the fixture was created. As a result, it was clarified that the created dental implant was able to reduce the concentrated stress in cortical bone and fixture.
社団法人日本機械学会の論文
2008-08-02