2020 Fiscal Year Final Research Report
Effects of Daytime Biofeedback Training on Sleep grinding and Central nervous system
| Project/Area Number |
19K19101
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 57050:Prosthodontics-related
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| Research Institution | Meikai University |
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Principal Investigator |
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| Project Period (FY) |
2019-04-01 – 2021-03-31
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| Keywords | ブラキシズム / 携帯型咀嚼筋筋電図 / バイオフィードバック訓練 / グラインディング |
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| Outline of Final Research Achievements |
Bruxism is a critical issue from the dental practical point of view, and masticatory muscle electromyographic (EMG) biofeedback (BF) is one of the strategies of the cognitive behavioral therapies used for its regulation. The previous study revealed that EMG tonic components during sleep decreased after daytime EMG-BF. However, the effect of daytime EMG-BF on rhythmical masticatory muscle activity (RMMA) has not been clarified yet. The present study therefore, aimed to examine the effect of EMG-BF training to reduce daytime clenching on the phasic components of EMG during sleep.
These results suggest that using EMG-BF training for daytime bruxism can work as an effective approach to regulate nocturnal bruxism in terms of the phasic and tonic components. With the limitation of study design, it can concluded that daytime EMG-BF may have potential therapeutic strategy to regulate sleep bruxism.
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| Free Research Field |
歯科補綴学分野
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| Academic Significance and Societal Importance of the Research Achievements |
ブラキシズム（咬みしめや歯ぎしり）は口腔内装置の破壊や歯の咬耗を引き起こすだけでなく，歯周病や顎関節症などにも影響をおよぼすとされています．しかしながら，ブラキシズムの発生機序や診断基準などは未だ解明されていません．これまでに日中のバイオフィードバック訓練により夜間のブラキシズムの抑制効果が報告されています．ただし，この報告ではクレンチング（咬みしめ）に対する研究報告であり，グラインディング（歯ぎしり）に対する研究報告はありません．そこで本研究では，日中のバイオフィードバック訓練により夜間のグラインディングの抑制効果を検証することを目的としています．
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