ArticleInnovation in aging2023
Social Isolation/Loneliness and Tooth Loss in Community-Dwelling Older Adults: The Sukagawa Study.
Article in Innovation in aging, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 23 papers, 3 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
23 citing papers in PubMed, 3 syntheses or guidelines pooled it.
- Association of Social Support With Oral Health in Older Adults: A Systematic Review and Meta-Analysis.Gerodontology · 2026Pooled it
- Prevalence of social alienation in community-dwelling older adults: a systematic review and meta-analysis.BMC geriatrics · 2026Pooled it
- Social Relationships and Tooth Loss in Adults Aged 60 Years and Older: A Systematic Review and Meta-Analysis.Community dentistry and oral epidemiology · 2025Pooled it
- Oral functional limitation and risk of frailty onset in older adults: a sex-stratified 4-Year cohort study with competing risk analysis.GeroScience · 2026Article
- Oral Frailty Index-8 (OFI-8) in Healthy Community-Dwelling Older Adults: Factor Structure and Association With Appetite, Muscle Health, Falls, Physical Function, Mood, and Quality of Life.Geriatrics & gerontology international · 2026Article
- Oral Frailty as a Marker of Intrinsic Capacity Decline: A Narrative Review on a Multisystemic Ageing Perspective.Journal of oral rehabilitation · 2026Review
- Oral Frailty and Social Frailty Among Older Japanese.Gerodontology · 2026Article
- Association of Tooth Loss With Stress and Depressive Symptoms in Korean Adults: An Analysis Using Korean National Health and Nutrition Examination Survey (KNHANES VI) (2013, 2015).Gerodontology · 2026Article
- Validation of the Japanese version of boredom proneness scale and derivation of its short version among older adults: a cross-sectional study.Health and quality of life outcomes · 2026Article
- Loneliness and Its Association with Depression, Aspiration Risk, and Conversation in Japanese Older Adults.Healthcare (Basel, Switzerland) · 2026Article
- Physical and Psychosocial Frailty Indicators as Predictors of Oral Frailty in Community-Dwelling Older Women.Journal of oral rehabilitation · 2025Article
- Assessing the effectivity of counting the number of teeth with their conditions to predict mortality: the OHSAKA study.BMC oral health · 2025Article
- Loneliness and its associations with oral and general health and socio-demographic factors in 80- and 90-year-old Swedes.BMC oral health · 2025Article
- Denture use and all-cause mortality risk in Chinese edentulous elderly: a follow-up study.Scientific reports · 2025Article
- Association of periodontitis, tooth loss, and self-rated oral health with circadian syndrome in US adults: a cross-sectional population study.BMC oral health · 2025Article
- Associations between tooth loss, denture use, and dementia in older Taiwanese adults.Journal of the Chinese Medical Association : JCMA · 2025Article
- Loneliness-associated factors among older adults: Focus on friendship type and number of friends.Japan journal of nursing science : JJNS · 2025Article
- Factors Associated With Nutritional Status in Patients With Removable Dentures: A Cross-Sectional Study.Cureus · 2024Article
- Oral Function, Loneliness, Depression, and Social Participation Among Physically Disabled Middle-Aged and Older Adult Individuals: Insights from a Japanese Cross-Sectional Study.Geriatrics (Basel, Switzerland) · 2024Article
- Impact of dental caries and Self-perceived oral health on daily lives of children and mothers in rural Egypt: a household survey.BMC oral health · 2024Article
Corrections and comments
- Erratum issued
Authors and funding
12 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background and Objectives: The relationship between social isolation/loneliness and oral health is unclear. This study investigated the association between social isolation/loneliness and tooth loss in older Japanese adults. Research Design and Methods: This was a cross-sectional study of a population-based cohort (the Sukagawa Study); 5,490 cohort study participants aged ≥75 years and who were independent answered a self-administered questionnaire in 2018. Social isolation was defined based on the 6-item Japanese version of the Lubben Social Network Scale. Loneliness was measured by the 3-item Japanese version of the University of California, Los Angeles (UCLA) Loneliness Scale version 3. The primary outcome was tooth loss, defined as having fewer than 20 teeth. The secondary outcomes were decreased toothbrushing frequency and diminished ability to chew food. Prevalence ratios (PRs) were estimated using a modified Poisson regression analysis in 2 models-Model 1, which adjusted for age, gender, smoking status, alcohol consumption, low annual income, and short education period, and Model 2, which added history of depression, history of diabetes mellitus, history of stroke, and cognitive impairment to Model 1. Results: The primary analysis included 4,645 participants. Adjusted PRs of social isolation and loneliness for tooth loss (Model 1) were 0.97 (95% confidence interval [CI] 0.92-1.01) and 1.06 (95% CI 1.01-1.12), respectively; those for decreased toothbrushing frequency were 1.13 (95% CI 0.95-1.36) and 1.56 (95% CI 1.26-1.92), respectively; and those for chewing difficulty were 1.61 (95% CI 1.06-2.43) and 2.94 (95% CI 1.91-4.53), respectively. The adjusted PRs in Model 2 demonstrated results similar to that of Model 1. Discussion and Implications: Loneliness is associated with tooth loss among older adults, whereas social isolation is not. Our findings can inform plans for policymakers, professionals, and organizations to identify lonely older adults and provide social prescriptions to improve their access to oral health care services.
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