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Updated: May 11, 2025

Oral Health Assessment by Lay Personnel for Older Adults
Published on: February 2, 2020
Relationship Between Blood Test Results and Oral Function Tests in Individuals Undergoing Regular Physical
Hitomi Kanie1,2, Mitsuyoshi Yoshida1,3, Miyuki Yokoi1,3
1Department of Dentistry and Oral-Maxillofacial Surgery, Fujita Health University Hospital, Toyoake, Japan.
Declines in oral function, including fewer remaining teeth and slower diadochokinesis, are linked to abnormal blood test results for glucose, lipids, and kidney function in adults over 50.
Area of Science:
- Gerontology
- Oral Health
- Metabolic Health
Background:
- Growing interest in the link between oral function and lifestyle-related diseases.
- Oral health is increasingly recognized as a factor influencing overall health and disease progression.
Purpose of the Study:
- To investigate the association between oral function test results and blood test markers for lipid abnormalities, glucose metabolism, and kidney function.
- To explore how deviations in metabolic and kidney health indicators relate to specific oral function parameters.
Main Methods:
- 118 individuals aged ≥50 years underwent health check-ups in 2021 and 2023.
- Subjects were categorized based on fasting blood glucose (GLU), HbA1c, HDL, LDL, BUN, and eGFR values falling outside or within reference ranges.
- Seven oral function tests were compared between these groups using the Mann-Whitney U test (p < 0.05 significance).
Main Results:
- Abnormal GLU and HbA1c levels correlated with significantly lower remaining teeth (RTN) and oral diadochokinesis (OD) values.
- Deviations in HDL and LDL were associated with a higher tongue coat index (TCI) and lower OD.
- Significant differences in TCI and OD were observed between groups based on BUN and eGFR reference range status.
Conclusions:
- Individuals with blood test values outside reference ranges demonstrated a decline in oral function.
- A decline in oral function may elevate the risk of developing lifestyle-related diseases.
- Impaired oral function could potentially accelerate the progression of frailty.
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