Static Strain Distribution in a Human Dry Skull under Simulated Unilateral Clenching

The skull copes with occlusal force dynamically. The dynamic phenomenon is mainly concerned with protecting teeth and periodontal tissue, restoring good occlusion by prosthodontic treatment, and developing many masticatory organs. Accordingly, the influence of light and hard tensile force and unilat...

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Veröffentlicht in:Nihon Hotetsu Shika Gakkai Zasshi 2000/04/10, Vol.44(2), pp.244-253
Hauptverfasser: Hayashi, Yukio, Nakamura, Ichiro, So, Kunio, Nanba, Natsuo, Kobayashi, Kihei, Tateishi, Tetsuya, Hyodo, Kouji
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container_end_page 253
container_issue 2
container_start_page 244
container_title Nihon Hotetsu Shika Gakkai Zasshi
container_volume 44
creator Hayashi, Yukio
Nakamura, Ichiro
So, Kunio
Nanba, Natsuo
Kobayashi, Kihei
Tateishi, Tetsuya
Hyodo, Kouji
description The skull copes with occlusal force dynamically. The dynamic phenomenon is mainly concerned with protecting teeth and periodontal tissue, restoring good occlusion by prosthodontic treatment, and developing many masticatory organs. Accordingly, the influence of light and hard tensile force and unilateral clenching duration in static strain distribution on dry skull was assessed by using an experimental model to simulate masseter and temporalis muscles. The results were as follows: 1. The static strain distribution on a dry skull varied significantly by the tensile force of masticatory muscles. 2. The static strain distribution on a dry skull varied significantly by unilateral clenching duration. 3. The influence of the tensile force of masticatory muscle and unilateral clenching duration was found on the frontal bone, parietal bone, temporal bone, and zygomatic process of temporal bone in relation with the attachment area of the masseter and temporalis muscles. 4. The influence of the tensile force of masticatory muscles and unilateral clenching duration was small in the calvaria, and masseter and temporalis muscles were not related to maxilla and palatine bone.
doi_str_mv 10.2186/jjps.44.244
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subjects biomechanics
skull
strain distribution
title Static Strain Distribution in a Human Dry Skull under Simulated Unilateral Clenching
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