title: The association between dentition status and sarcopenia in Japanese adults aged ≥75 years.
abstract: Sarcopenia is an age-related loss of muscle mass and muscle strength or physical performance. There are limited data on the association between oral health and sarcopenia. To test the hypothesis that impaired dentition status was associated with sarcopenia, we conducted a cross-sectional study. A total of 272 community-dwelling Japanese adults aged ≥75 years for whom data were available from comprehensive health examinations conducted in 2015 were included in this study. During dental examination, the number of natural teeth and occluding pairs of natural teeth was counted. In denture wearers, the fit of the removable dentures was also evaluated. The criteria proposed by the Asian Working Group for Sarcopenia were used to define sarcopenia. A multivariable logistic regression model was used to evaluate the association between dentition status and the presence of sarcopenia. The prevalence of sarcopenia was 25·7% (70/272). Compared to individuals with ≥10 occluding pairs of natural teeth, those with no occluding pairs of natural teeth had significantly higher risk of having sarcopenia (adjusted odds ratio, 3·37; 95% confidence interval, 1·07-10·61), after adjusting for possible confounders. In addition, compared to individuals with well-fitting dentures, those with ill-fitting dentures had significantly higher risk of having sarcopenia (adjusted odds ratio, 5·07; 95% confidence interval, 1·59-16·19). Our findings suggest that impaired dentition status is significantly associated with sarcopenia among community-dwelling Japanese adults aged ≥75 years. Future longitudinal studies with larger, more diverse populations are necessary to validate our findings.
authors.affiliation: Division of Preventive Dentistry, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan.|Division of Community Oral Health Development, Kyushu Dental University, Fukuoka, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Iwasaki
authors.affiliation: Graduate School of Human Sciences, Osaka University, Osaka, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Kimura
authors.affiliation: Division of Preventive Dentistry, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Ogawa
authors.affiliation: Center for Southeast Asian Studies, Kyoto University, Kyoto, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Wada
authors.affiliation: Center for Southeast Asian Studies, Kyoto University, Kyoto, Japan.
authors.forename: R
authors.initials: R
authors.lastname: Sakamoto
authors.affiliation: Course of Nursing, Graduate School of Medicine, Mie University, Mie, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Ishimoto
authors.affiliation: Center for Southeast Asian Studies, Kyoto University, Kyoto, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Fujisawa
authors.affiliation: Center for Southeast Asian Studies, Kyoto University, Kyoto, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Okumiya
authors.affiliation: Division of Community Oral Health Development, Kyushu Dental University, Fukuoka, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Ansai
authors.affiliation: Division of Preventive Dentistry, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Miyazaki
authors.affiliation: Center for Southeast Asian Studies, Kyoto University, Kyoto, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Matsubayashi
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D003430:Cross-Sectional Studies; D003817:Dentition; D003824:Denture, Complete / Q000706:statistics & numerical data*; D005260:Female; D015577:Geriatric Assessment; D006305:Health Status Indicators; D006801:Humans; D008297:Male; D009066:Mouth, Edentulous / Q000453:epidemiology* / Q000503:physiopathology; D009909:Oral Health / Q000706:statistics & numerical data*; D015995:Prevalence; D055948:Sarcopenia / Q000453:epidemiology* / Q000503:physiopathology
keywords: aged; cross-sectional studies; dentition; muscles; oral health; sarcopenia