生体活性ガラスを用いたインプラントの力学的検討 : 二次元有限要素法による応力解析 : 第1報天然歯との比較

概要

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Bioactive glass is a new form of dental implant material which has the ability to combine with bone, and various research and tests have been undertaken to strengthen its range of clinical application. The purpose of this study is to analyze the stress distribution of bioactive glass by the finite element method, and to compare its results with a natural tooth model. The results obtained were as follows : 1. The displacement showed the natural tooth model to be larger than the implant model. 2. The stress distribution showed tlae natural tooth model to be similar to that of the implant model. However, as the implant model showed the most stress to be on the side where the direction of the force was applied, the natual tooth model showed just as much stress on the opposite side as well. 3. The displacement and stress distributton varied according to the direction and area of the applied force. Displacement of the natual tooth was the least when force was applied toward the axial direction of the tooth, and increased as the anagle of force applied varied. However, no dis-placement of the implant model was observed when the force was applied within 30℃ of the axial direction, but increased drastically beyond that point.
日本補綴歯科学会の論文
1991-08-01