| Project/Area Number |
17K11782
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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 |
Prosthodontics/ Dental materials science and
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| Research Institution | Hiroshima University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
香川 和子 広島大学, 病院(歯), 歯科診療医 (60432671)
柄 博紀 広島大学, 病院(歯), 病院助教 (60614378)
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| Project Period (FY) |
2017-04-01 – 2021-03-31
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| Project Status |
Completed (Fiscal Year 2020)
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| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2020: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2019: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2018: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2017: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | ブラキシズム / 筋電図 / 睡眠 / ブラシズム |
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| Outline of Final Research Achievements |
This study is mainly analyzed masticatory muscle activity during sleep and the quality of sleep obtained by electroencephalogram analysis. We evaluated the long-term bruxism dynamics and tried to find the factors predict the risk of bruxism by the stress-related objective data of autonomic nervous state analysis before sleep. We also examined the effects of sprint wearing from long-term perspectives on bruxism activity and sleep quality, and not worn daily, but also for the high-risk night and how to wear sprints discontinuously. There was no factor to predict bruxism, but even if splint is used for a long time, there is no adverse effect on sleep, and even if sprint is not wearing for a short time, there is no tendency to increase bruxism, and suggestions useful for long-term use of sprint are obtained.
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| Academic Significance and Societal Importance of the Research Achievements |
本研究の学術的意義はブラキシズムの観察期間が１年間という長期にわたること。最新の小型携帯機器を使用することで、普段と変わらない睡眠環境下での脳波, 筋電図を採取すること。脳波測定により睡眠の質を評価し、自律神経活動などのストレス関連因子を同時に評価すること。毎夜ではなく、ブラキシズムをするリスクの高い夜に選択的にスプリントを装着するという着想があること。スプリントの非連続使用の是非について検討することである。スプリントを長期に使用しても睡眠や筋活動に悪影響がなく、長期的視野に立った, スプリントによる対策方法が提供でき, 多くのブラキシズムに悩む患者に利することができると考えられる。
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