| Project/Area Number |
24500559
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Medical systems
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| Research Institution | Tsurumi University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
HAMADA Yoshiki 鶴見大学, 歯学部, 教授 (70247336)
OGAWA Takumi 鶴見大学, 歯学部, 教授 (20267537)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2012: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
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| Keywords | 有限要素法 / 4次元咀嚼筋解析 / 咀嚼筋腱・腱膜過形成症 |
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| Outline of Final Research Achievements |
Square mandible （Masticatory muscle tendon-aponeurosis hyperplasia:MMTAH）is characterized by painless limitation of mouth opening and square mandible configuration. We have clinically applied the 4-dimentional muscle model to explore the pathology of MMTAH.
In this study, we examined the relationship of the stress distribution of the mandibular body with the pathology of MMTAH. Concretely, it was analyzed by integration of the data of the patients’ mandibular movements into the individual finite element model reconstructed using the patients’ CT data. As a result, the maximum stress was concentrated on the coronoid process and the mandibular angle during mouth opening and mouth closing in the MMTAH patients. It is interesting to note that the portion of stress concentration was in accordance with that of the mandibular hyperplasia in the MMTAH patients.
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