Author:
Bando Shino,Tomata Yasutake,Aida Jun,Sugiyama Kemmyo,Sugawara Yumi,Tsuji Ichiro
Abstract
ObjectivesTo assess whether oral self-care (tooth brushing, regular dental visits and use of dentures) affects incident functional disability in elderly individuals with tooth loss.DesignA 5.7-year prospective cohort study.SettingOhsaki City, Japan.Participants12 370 community-dwelling individuals aged 65 years and older.Primary outcome measuresIncident functional disability (new long-term care insurance certification).ResultsThe 5.7-year incidence rate of disability was 18.8%. In comparison with participants who had ≥20 teeth, the HRs (95% CIs) for incident functional disability among participants who had 10–19 and 0–9 teeth were 1.15 (1.01–1.30) and 1.20 (1.07–1.34), respectively (p trend<0.05). However, the corresponding values for those who brushed their teeth ≥2 times per day were not significantly higher in the ‘10–19 teeth’ and ‘0–9 teeth’ groups (HRs (95% CI) 1.05 (0.91–1.21) for participants with 10–19 teeth, and 1.09 (0.96–1.23) for participants with 0–9 teeth), although HRs for those who brushed their teeth <2 times per day were significantly higher (HRs (95% CI) 1.32 (1.12–1.55) for participants with 10–19 teeth, and 1.33 (1.17–1.51) for participants with 0–9 teeth). Such a negating association was not observed for other forms of oral self-care.ConclusionsTooth brushing may partially negate the increased risk of incident functional disability associated with having fewer remaining teeth.
Funder
the Ministry of Health, Labour and Welfare of Japan
the Foundation for Total Health Promotion
Cited by
15 articles.
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