ArticleBMC geriatrics2022
Association between the number of remaining teeth and disability-free life expectancy, and the impact of oral self-care in older Japanese adults: a prospective cohort study.
Article in BMC geriatrics, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 11 citations in OpenAlex.
- Prefecture-level factors associated with home-visit dental care utilization in Japan: focus on dentist workforce characteristics.BMC oral health · 2026Article
- Blood and skin carotenoid levels are inversely associated with the prevalence of periodontal diseases in populations with normal occlusion: a cross-sectional analysis from the Iwaki health promotion project.Nutrition journal · 2026Article
- Association between tooth brushing habits and incident disability in community-dwelling older adults: a prospective cohort study.Environmental health and preventive medicine · 2026Article
- Water fluoridation, functional dentition and tooth loss in Brazilian adults: a multilevel analysis of SB Brasil 2023.Revista brasileira de epidemiologia = Brazilian journal of epidemiology · 2026Article
- Oral Frailty, Dental Visits, and Healthy Life Expectancy: A 6-Year Prospective Cohort Among Japanese Older Adults.Geriatrics & gerontology international · 2025Article
- Association between dysphagia and social isolation in community-dwelling older people.European geriatric medicine · 2025Article
- Number of teeth and functional disability in community-dwelling older adults.Gerodontology · 2025Article
- Article
- Oral frailty five-item checklist to predict adverse health outcomes in community-dwelling older adults: A Kashiwa cohort study.Geriatrics & gerontology international · 2023Article
Corrections and comments
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Authors and funding
7 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundTooth loss has been reportedly associated with shorter disability-free life expectancy (DFLE). However, no study has explored whether oral self-care offsets reduction in DFLE. The present study aimed to assess the association between oral self-care and DFLE in older individuals with tooth loss.
methodsData on the 13-year follow-up from a cohort study of 14,206 older Japanese adults aged ≥ 65 years in 2006 were analyzed. Information on the number of remaining teeth was collected using a questionnaire, and the participants were then categorized into three groups (0-9, 10-19, and ≥ 20 teeth). Additionally, "0-9" and "10-19" groups were divided into two subgroups based on whether they practiced oral self-care. DFLE was defined as the average number of years a person could expect to live without disability, and was calculated by the multistate life table method based on a Markov model.
resultsDFLE (95% confidence interval) was 19.0 years (18.7-19.4) for 0-9 teeth, 20.1 (19.7-20.5) for 10-19 teeth, and 21.6 (21.2-21.9) for ≥ 20 teeth for men. For women, DFLE was 22.6 (22.3-22.9), 23.5 (23.1-23.8), and 24.7 (24.3-25.1), respectively. Practicing oral self-care was associated with longer DFLE, by 1.6-1.9 years with brushing ≥ 2 times a day in people with 0-9 and 10-19 teeth, and by 3.0-3.1 years with the use of dentures in those with 0-9 teeth.
conclusionsPracticing oral self-care is associated with an increase in DFLE in older people with tooth loss.
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