歯根破折評価のための補綴処置歯の有限要素法解析

概要

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Stress distributions of endodontically treated teeth were estimated by using finite element analysis for evaluating root fracture. The finite element model was generated based on x-ray CT data and mechanical properties of alveolar bone, natural teeth and a partial denture were assigned. The result showed that stress concentration was observed at the boundary area between the natural teeth and the partial denture when a vertical load was applied, possibly associated with root fracture of teeth clinically observed. Higher stress concentration was observed under a lateral loading than under the vertical loading. By contrast, stress concentration was less observed when mechanical properties of the natural teeth and the partial denture were assumed to be the same. The present technique would be useful for designing an optional partial denture to prevent root fracture of teeth.
日本実験力学会の論文