20410 左右不均衡な咬合力が頭蓋に及ぼす力学的影響について(実験力学的手法による生体・材料・製品の評価(3),OS.7 実験力学的手法による生体・材料・製品の評価)

概要

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In order to examine the potential dynamic influence of right and left imbalanced occlusal force on the cranial and facial bones, we prepared a 3-dimensional finite element model with a total of 126,534 nodes and total of 623,852 elements, which was composed of 4 aspects including individual cranial sutures, facial bones, and cranial bones excluding mandibular bones, teeth, and periodontal ligament, according to the cranial CT images taken from an adult dried skull. By using this model, we then performed 3-dimensional finite element analysis under the following 2 loading conditions. The following results could be drawn from this study: 1. In the normal occlusion model, a light and left symmetric stress distribution was observed around the key-ridge surroundings as well as in the region covering the maxillary frontal aspect to the buccal bone. 2. In the unilateral crossbite model as well, the stress distribution was observed in both right- and left-sided key-ridge surroundings as well as in the region toward the maxillary frontal aspect.
社団法人日本機械学会の論文
2009-03-05