ArticleQuality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation2021
Association between frequency of laughter and oral health among community-dwelling older adults: a population-based cross-sectional study in Japan.
Article in Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 18 citations in OpenAlex.
- Laughing During Conversations, But Not in Response to Digital Media, Is Associated With Less Loneliness, Social Isolation, and Social Withdrawal: A Cross-Sectional Study of German Adults in 2023.Health science reports · 2025Article
- Frequency of Conversation, Laughter and Other Vocalising Opportunities in Daily Life and Maximum Tongue Pressure: The Goto Longevity Study.Journal of oral rehabilitation · 2025Article
- Social Isolation Among Older Adults With Dysphagia Requiring Home Health Care: A Cross-Sectional Study.Cureus · 2025Article
- Association of laughter and social communication with oral frailty among residents in Fukushima: a cross-sectional study.Scientific reports · 2024Article
- Complete Loss of Natural Teeth and Loneliness: A Fixed-Effect Analysis.Journal of dental research · 2024Article
- The Association between Laughter and Functional Dyspepsia in a Young Japanese Population.International journal of environmental research and public health · 2022Article
- Laughter therapy: A humor-induced hormonal intervention to reduce stress and anxiety.Current research in physiology · 2021Review
Corrections and comments
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Authors and funding
8 authors at 7 institutions in 2 countries.
Funding
Abstract
purposeOral health has been reported to have an impact on the activities of daily life such as chewing, eating, and laughing, while psychological factors such as depression and loneliness have been reported to affect oral health. Little is known, however, about the association between laughter and oral health in older adults. This study examined the bidirectional association between the frequency of daily laughter and oral health in community-dwelling older Japanese adults.
methodsOur cross-sectional study employed data from the 2013 Japan Gerontological Evaluation Study's self-reported survey, which included 11,239 male and 12,799 female community-dwelling independent individuals aged 65 years or older. We defined the oral health status by the number of remaining teeth. The association between the self-reported frequency of laughter (almost every day, 1-5 days per week, 1-3 days per month, or almost never) and oral health was examined using logistic regression analysis.
resultsThe participants with 10 or more teeth were significantly more likely to laugh compared with the edentulous participants, after adjusting for all covariates. Compared with those who almost never laughed, those who laughed 1-5 days per week were significantly less likely to be edentulous. After stratifying by sex, similar results were found only in the men for both analyses.
conclusionThere was a significant bidirectional association between frequency of laughter and oral health that was independent of socioeconomic and lifestyle factors among older adults.
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