ハマノ　ツヨシ   HAMANO TSUYOSHI
  濱野　強
   所属   京都産業大学  現代社会学部 健康スポーツ社会学科
   職種   教授
発行・発表の年月 2021
形態種別 研究論文
査読 査読あり
標題 Number of teeth and masticatory function are associated with sarcopenia and diabetes mellitus status among community-dwelling older adults: A Shimane CoHRE study
執筆形態 その他
掲載誌名 PLOS ONE
出版社・発行元 Public Library of Science (PLoS)
巻・号・頁 16(6),e0252625頁
著者・共著者 Takafumi Abe,Kazumichi Tominaga,Yuichi Ando,Yuta Toyama,Miwako Takeda,Masayuki Yamasaki,Kenta Okuyama,Tsuyoshi Hamano,Minoru Isomura,Toru Nabika,Shozo Yano
概要 <sec id="sec001">
<title>Objectives</title>
We aimed to examine the number of teeth and masticatory function as oral health indices and clarify their roles in the pathogenesis of sarcopenia and diabetes mellitus in community-dwelling older adults.


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<sec id="sec002">
<title>Subjects and methods</title>
This cross-sectional study was conducted with 635 older adults in Ohnan, Shimane Prefecture, in rural Japan. The number of teeth and masticatory function (measured by the number of gummy jelly pieces collected after chewing) were evaluated by dental hygienists. Sarcopenia status was assessed using handgrip strength, skeletal muscle index, calf circumference, and a possible sarcopenia diagnosis based on the Asian Working Group for Sarcopenia 2019. Diabetes mellitus status was defined as a hemoglobin A1c level ≥6.5% or self-reported diabetes. A multivariable logistic regression model was used to analyze the association between oral health, sarcopenia, and diabetes mellitus after adjusting for confounders.


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<sec id="sec003">
<title>Results</title>
After adjusting for all confounders, logistic regression analysis showed that the number of remaining teeth was negatively associated with a low level of handgrip strength (odds ratio [OR], 0.961; 95% confidence interval [CI], 0.932–0.992) and possible sarcopenia (OR, 0.949; 95% CI, 0.907–0.992). Higher levels of masticatory function were also negatively associated with a low level of handgrip strength (OR, 0.965; 95% CI, 0.941–0.990) and possible sarcopenia (OR, 0.941; 95% CI, 0.904–0.979). Logistic regression analysis showed that the number of remaining teeth and a higher level of masticatory function were negatively associated with diabetes mellitus (OR, 0.978; 95% CI, 0.957–0.999; OR, 0.976; 95% CI, 0.960–0.992, respectively).


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<sec id="sec004">
<title>Conclusion</title>
Our findings suggest that improvement in oral health, including the maintenance of masticatory function and remaining teeth, may contribute to the prevention of sarcopenia and diabetes mellitus in older adults.


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DOI 10.1371/journal.pone.0252625
ISSN /1932-6203
PermalinkURL https://dx.plos.org/10.1371/journal.pone.0252625