902 ヒト象牙質の動的粘弾性の評価(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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Dentin is a natural composite material consisting of three phases: mineral, organic and water. These three phases are not independent each other, but rather work in harmony to determine the viscoelastic property of dentin. Although the viscoelastic properties of root dentin at a macroscopic level have been studied, those of the crown to root dentin at a microscopic level have not. Dynamic nanoindentation is a new promising method of measuring the dynamic viscoelastic properties of biological tissues with a smaller length and using smaller load scales than those allowed by other testing methods. The objective of the present study was to use the dynamic nanoindentation method to determine dynamic viscoelastic properties such as storage modulus and loss tangent of human crown to root dentin at the microscopic level in a tooth direction. The effects of dentin mineral density (DMD) measured by pQCT on viscoelastic properties at a macroscopic level were also studied.
社団法人日本機械学会の論文
2008-08-02