| Project/Area Number |
15K15718
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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 |
Dental engineering/Regenerative dentistry
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
佐々木 啓一 東北大学, 歯学研究科, 教授 (30178644)
菅野 彰剛 東北大学, 医学系研究科, 講師 (20578968)
山内 健介 東北大学, 歯学研究科, 准教授 (10364150)
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | 脳機能 / 体性感覚誘導磁場 / 脳磁図 / 歯科インプラント / 歯根膜 |
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| Outline of Final Research Achievements |
This study investigated the mechanism of information transmission from the somatosensory receptors of the periodontal ligament to the cerebral cortical somatosensory cortex, and the mechanism of compensatory sensory reception in dental implants by the brain functional method. Characteristics and localization of somatosensory evoked magnetic field responses evoked by occlusal stimulation of natural teeth and dental implants were examined using magnetoencephalography.
Stimulus simulating occlusion was applied to the left lower canine and the first molar using our pressure trigger stimulation device in 20 adult volunteers. Contralateral response latency of the evoked magnetic field was significantly shorter in the first molar of the lower jaw than in the canine. In addition, the signal sources of the left lower canine and the first molar were located in almost the same region.
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