2023 Fiscal Year Final Research Report
Visualization for the elasticity of orbicularis oris muscle based on image engineering - Creation of the comprehensive oral functional management tool -
| Project/Area Number |
21K10204
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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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| Review Section |
Basic Section 57080:Social dentistry-related
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| Research Institution | The Nippon Dental University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
坂本 信 新潟大学, 医歯学系, 教授 (80215657)
林 孝文 新潟大学, 医歯学系, 教授 (80198845)
下村 淳子 日本歯科大学, 新潟生命歯学部, 教授 (00386286)
坂井 淳 新潟工業短期大学, 自動車工業科, 准教授 (70425370)
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| Project Period (FY) |
2021-04-01 – 2024-03-31
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| Keywords | 口腔機能 / 超音波診断装置 |
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| Outline of Final Research Achievements |
The purpose of the present study was to investigate the behavior of the lower orbicularis oris muscle during a button-pull exercise to measure lip closing force and quantitatively evaluate its elastic properties using a sonographic elastography.Compression tests were performed on acoustic couplers within the appropriate compression load. Using the acoustic coupler with the lowest elastic modulus, the strain ratio of the lower orbicularis oris muscle during lip closing was measured, and elastography was performed under tension loads of 0-8 N.The intraclass correlation coefficient (1, 3) for the tension load of 0 N was 0.81. Elastography showed that the strain ratio values increased significantly as the tension load increased.Combining the data obtained from lip closing test devices and sonographic elastography enabled the muscle performance to be evaluated objectively and accurately.
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| Free Research Field |
小児歯科学
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| Academic Significance and Societal Importance of the Research Achievements |
口の衰えが先行して全身フレイルやサルコペニアが発生し，さらには要介護状態や生命維持にも関連する．本研究にて口唇閉鎖機能を画像上にて把握することが可能であることが示されたことから，医療介入を展開する上でのクリニカルパスの構築のみならず，将来的にはコンパクト化したデバイスをベッドサイドにて活用し，口腔機能向上の介入へと繋げ，寝たきり状態の予防も期待することができる．筋の弾性特性を理解することは，筋のコンディションを把握するだけでなく，今後適切な介入手段を検討するうえでのベースライン情報として有益であると示唆された．
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