| Project/Area Number |
15H05059
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Social dentistry
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| Research Institution | Kanagawa Dental College |
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Principal Investigator |
Yamamoto Tatsuo 神奈川歯科大学, 大学院歯学研究科, 教授 (20252984)
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| Co-Investigator(Kenkyū-buntansha) |
近藤 克則 国立研究開発法人国立長寿医療研究センター, その他部局等, 部長 (20298558)
相田 潤 東北大学, 歯学研究科, 准教授 (80463777)
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| Co-Investigator(Renkei-kenkyūsha) |
FUCHIDA Shinya 神奈川歯科大学, 大学院歯学研究科, 助教 (90732834)
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| Research Collaborator |
TANAKA Michio
MOCHIDA Yuki
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥15,470,000 (Direct Cost: ¥11,900,000、Indirect Cost: ¥3,570,000)
Fiscal Year 2017: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2016: ¥9,230,000 (Direct Cost: ¥7,100,000、Indirect Cost: ¥2,130,000)
Fiscal Year 2015: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | 多地域大規模追跡調査 / 歯科口腔保健 / 要介護状態 / 認知症 / 転倒 / 健康寿命 / 歯学 / 要介護 / コホート研究 |
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| Outline of Final Research Achievements |
Association of decrease in number of teeth with incident disability, dementia onset and incident falls in older people were examined using data obtained in year 2010, 2013 and 2016. Results from analyses using 11,915 people aged 65 years or older showed that subjects lost their teeth during 2010-2013 had significantly higher risk for incident disability and dementia onset than those kept 20 or more teeth after adjusting for socio-economic status, health behavior, etc. Results from analyses using 4,607 people showed no significant association between change of number of teeth and denture use during 2010-2013 and incident falls after adjusting for socio-economic status, health behavior, etc. No significant influences of dental health behavior and density of dentists were observed in the association of decrease in number of teeth and denture use with incident disability, dementia onset and incident falls.
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