| Project/Area Number |
25670819
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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 |
Prosthodontics/ Dental materials science and
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| Research Institution | Okayama University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
KUBOKI Takuo 岡山大学, 大学院医歯薬学総合研究科, 教授 (00225195)
MAEKAWA Kenji 岡山大学, 大学院医歯薬学総合研究科, 准教授 (20304313)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 睡眠時ブラキシズム / 発症メカニズム / ポリソムノグラフ検査 / 交感神経活動 / R-R間隔 / 睡眠時覚醒 / 睡眠時体動 / 筋電図 / 随伴症状 / ポリソムノグラフィー検査 / 心電図 / 自律神経活動 / 睡眠時覚醒（微小覚醒） / PSG検査 |
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| Outline of Final Research Achievements |
Validation of the miniature sleep bruxism (SB) detection/analyzing device has not been evaluated. This study determined the validity of device compared to polysomnogram puls AV recording (PSG). Sensitivity, specificity and accuracy between device and PSG assessment were 1.00，0.88 and 0.93 in case cut-off criteria was set at score 1 to 2. These results suggested that this modified miniature detection/analyzing device would obtain the moderate to high validity in clinical use.
Association between SB and simultaneous comorbid motor activites is unclear. This study aimed to compare the the incidences of body motions between sleep arousal (SA) with SB (SAwSB) and SA without SB (SAw/oSB). Motor activities in SAwSB was significantly higher than that in SAw/oSB (t-test, p<0.01, 95.1+/-6.6 %, 69.2+/-19.5 %). Leg movement and swallowing were significantly frequent among the comorbidities. This suggested that SB can be cocomitantly activated with leg movemnet and swallowing in relation to SA.
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