| Project/Area Number |
23656087
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Materials/Mechanics of materials
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| Research Institution | Osaka University |
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Principal Investigator |
SHIBUTANI Yoji 大阪大学, 大学院・工学研究科, 教授 (70206150)
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| Research Collaborator |
HIHARA Keita 大阪大学, 大学院・博士前期課程, 学生
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| Project Period (FY) |
2011 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2011: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 歯科咬合 / 表面筋電位計測 / 不正咬合 / 増分型筋構成式 / はりモデル / 有限要素解析 / 筋-骨格系 / 不定愁訴 / 増分形式構成式 / 頭蓋側屈 / 咬合力学 / マルチボディダイナミクス / 筋電計測システム / 有限要素法 / 咀嚼筋系 |
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| Research Abstract |
Surface muscle potentials for occlusal activities in dentistrywere measured by the muscle potential instrument. Four kinds of muscles were taken upfor measurement in the present work, which are the right-and-left masseter and cowlmuscles. The higher activation was observed in the work-side and these reference datawere applied to development of an incremental constitutive law of muscle employed in afinite element scheme. For ordinal occlusal activities, this law should be sufficientto describe the time-dependent mechanics without any inertia, and the results newlysuggest that natural length of muscle was changed to a cyclic loading and then thehysteresis loop becomes stationary
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