open access

https://hdl.handle.net/2115/83414

Rate of oral frailty and oral hypofunction in rural community-dwelling older Japanese individuals

英語

rural community dwellers

2020-12

John Wiley & Sons

Gerodontology

37(4)

342-352

Objective To clarify the rate of oral frailty and oral hypofunction in rural community-dwelling older adults in Japan. Background Recently, the oral function of Japanese older adults has been evaluated multilaterally based on two concepts: oral frailty and oral hypofunction. Oral frailty is defined as a decrease in the oral function accompanied by a decrease in mental and physical functions. Oral hypofunction is a disease where the oral function is comprehensively decreased. However, their rates have not yet been elucidated. Materials and methods Oral frailty and oral hypofunction were evaluated in 679 older adults from rural areas. To investigate the differences in occurrence rates due to the evaluation methods, one of the subordinate symptoms of oral hypofunction, the reduced occlusal force, was evaluated based on both the occlusal force (main method) and the number of teeth (alternative method). Results The rate of oral frailty was 22.3% in men and 22.7% in women. The rate of oral hypofunction was 39.0% in men and 46.9% in women. The overall rate of oral hypofunction was 43.6% when the reduced occlusal force of oral hypofunction was evaluated using the main method and 46.4% when evaluated using the alternative method. The proportion of participants with decreased occlusal force, the number of present teeth, oral diadochokinesis, tongue pressure and masticatory performance increased with age in both men and women. Conclusion Among rural community-dwelling older adults, the rate of oral frailty was 22.5% and that of oral hypofunction was 43.6%.

学術雑誌論文

Accepted Manuscript

This is the peer reviewed version of the following article: [Kugimiya Y, Watanabe Y, Ueda T, Motokawa K, Shirobe M, Igarashi K, Hoshino D, Takano T, Sakurai K, Taniguchi Y, Kitamura A, Shinkai S, Hirano H. Rate of oral frailty and oral hypofunction in rural community-dwelling older Japanese individuals. Gerodontology. 2020 Dec;37(4):342-352.], which has been published in final form at [https://doi.org/10.1111/ger.12468]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.

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