| Project/Area Number |
26861618
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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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 | Hokkaido University |
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Principal Investigator |
MIKAMI Saki 北海道大学, 歯学研究科(研究院), 専門研究員 (70704477)
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Keywords | 咬筋筋電図 / 交感神経活動 / 心電図 / ブラキシズム / 顎関節症 |
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| Outline of Final Research Achievements |
We established a system which can measure masseter muscle activity and sympathetic nerve activity at the same time during the entire day by means of data-logger-type small biosignal measuring devices.We investigated temporal associations between masseter muscle activity and sympathetic nerve activity in patients with suspected bruxism during the entire day. During sleep, masseter muscle activity and LF/HF ratio which is the parameter of sympathetic nerve activity increased simultaneously in considerable cases. During daytime, there were some cases in which masseter muscle activity and LF/HF ratio changed simultaneously. However, we could not demonstrated apparent temporal association between masseter muscle activity and LF/HF ratio during daytime.
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