2015 Fiscal Year Final Research Report
Effects of stabilisation splints on sleep bruxism is different in accordance with the magnitude of sleep bruxism
| Project/Area Number |
26670840
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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 | Kyushu University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
KOYANO KIYOSHI 九州大学, 大学院歯学研究院, 教授 (50195872)
ICHIKI RIKA 九州大学, 大学院歯学研究院, 助教 (20325567)
KORI HIDEHIRO 九州大学, 大学病院, 医員 (70589621)
KIHARA MASAFUMI 九州大学, 大学病院, 助教 (40419536)
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Keywords | 歯学 / 臨床 / 睡眠時ブラキシズム / スプリント / 治療成績 |
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| Outline of Final Research Achievements |
The present study investigated the effects of stabilization splints on two components of sleep bruxism, grinding and clenching, using a portable electromyographic recording system. Twenty-six individuals with mild to severe bruxers enrolled in the study. Participants wore a stabilization splint during sleep for 30 nights, and masseter muscle activity was measured at baseline, immediately after, and one and four weeks after insertion of the splint. Bursts in masseter electromyographic episodes were separated into grinding or clenching, then each burst was analyzed in terms of duration, frequency, and magnitude of bursts. The distribution of magnitude for clenching bursts with the splint was shifted toward the lower compared with the baseline. Obtained results suggest that stabilization splints reduce grinding activity in patients with sleep bruxism by reducing the frequency of grinding bursts in the short term, and reducing the magnitude of clenching bursts over a longer period.
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| Free Research Field |
歯科補綴学
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