2023 Fiscal Year Final Research Report
Invesitgating the mechanisms of the relationship between oral status and cognitive function using large cohort data and estimating causal effects
Project/Area Number |
22K20984
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Research Category |
Grant-in-Aid for Research Activity Start-up
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Allocation Type | Multi-year Fund |
Review Section |
0907:Oral science and related fields
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Research Institution | Tohoku University |
Principal Investigator |
Kiuchi Sakura 東北大学, 学際科学フロンティア研究所, 助教 (30963061)
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Project Period (FY) |
2022-08-31 – 2024-03-31
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Keywords | 認知機能 / 口腔 |
Outline of Final Research Achievements |
The Panel on Health and Ageing of Singaporean Elderly (PHASE) with three-point survey data were used to examine the association between the number of teeth and cognitive function. We applied the Longitudinal Modified Treatment Policy approach. A total of 1,516 participants were included in the analysis, excluding those with severe cognitive decline. Emulated tooth loss prevention interventions were associated with better cognitive function score. Therefore, preventing tooth loss could potentially benefit maintenance of cognitive function among older adults.
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Free Research Field |
口腔衛生学
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Academic Significance and Societal Importance of the Research Achievements |
高齢者において機能的歯列(20本以上)を維持することが認知機能の改善につながる可能性が示唆された。認知機能の改善は、研究対象者を20本以上に予防介入した場合に一番大きく、単に10本以上の歯を残すことだけでは、認知機能の大きな改善にはつながらなかった。機能歯列の維持は、高齢になってからの介入では達成が困難であるため、幼少期からの歯の喪失予防が重要である。そのためには、フッ化物使用や、砂糖や喫煙といったリスクファクターへの対策が必要であると考えられる。
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