Oral health inequalities in Swedish older adults over 25 years of follow-up.

OBJECTIVES: The aim of this study was to describe inequalities in tooth loss and dissatisfaction with teeth related to time-invariant and time-variant socio-demographic characteristics and use of dental care across the middle and older life course and to assess whether oral health inequalities remain stable, widen or narrow from age 50 to 75. MATERIALS AND METHODS: In 1992, 6346 residents, aged 50, consented to participate in a prospective cohort study including postal questionnaire follow-ups every fifth year until age 75. Tooth loss and dissatisfaction with teeth were assessed at each survey wave in addition to socio-demographic factors and use of dental care. Multivariable logistic regression, generalised estimating equations, GEE, and random intercept logistic mixed models were used for estimation of population-averaged and person-specific odds ratio. Interaction terms of each covariate with the time indicator were added to test whether inequalities changed across time. RESULTS: Person-specific OR and 95% CI estimates for tooth loss varied from 1.29 (1.09-1.53) (unmarried vs married) to 9.20 (6.07-13.94) (foreign country vs native). Estimated ORs for tooth dissatisfaction ranged from 1.33 (1.15-1.55) (unmarried vs married) to 2.59 (2.15-3.11) (smoking vs no smoking). Inequalities in tooth loss according to sex, educational level and country of birth were smaller in magnitude in 2017 than in 1992. Inequality estimates in dissatisfaction with teeth according to use of dental care and perceived health were, respectively, smaller and greater at older than at younger age. CONCLUSION: Socio-demographic inequalities in oral health persisted from age 50 to 75 and varied in magnitude across time. Both convergence and widening of disparities in oral health occurred towards older ages.

Changes in conditions related to reported oral and general health over a ten-year period as reflected in two cohorts of 75-year-old subjects examined in 2007 and 2017.

BACKGROUND: The rapidly ageing and increasingly dentate population puts great demands on society regarding the provision of adequate medical and dental care facilities. OBJECTIVES: To present changes in reported demographic, general and oral health factors in two cohorts of 75 year olds in 2007 and 2017, and to analyse factors associated with self-reported number of remaining teeth and chewing efficiency. MATERIAL AND METHODS: All 75-year-old people living in two Swedish counties received a questionnaire in 2007 and in 2017. The response rates in 2007 and in 2017 were 71.9% (n = 3735) and 70.7% (n = 5091), respectively. Reported number of teeth was clinically validated in a selected subgroup. RESULTS: The 2017 cohort reported significantly better general health and dental state. Edentulousness was 7.8% in 2007 and 2.3% in 2017, while 'very good' chewing efficiency was 55.2% and 60.5%, respectively. Born outside Sweden, single living, not feeling healthy and smoking predicted reduced number of teeth in both cohorts. Impaired chewing efficiency in both cohorts was predicted by being born outside Sweden, lower education, not feeling healthy, reduced number of teeth and denture wearing. CONCLUSIONS: Seventy-five-year-old people in Sweden reported much better oral and general health in 2017 compared to 2007. In 2017, 75% had practically all natural teeth present and only 2% were edentulous. This development of an increasingly dentate and partially dentate ageing population will put high demands on the oral healthcare system and will need adapting undergraduate/postgraduate education and management strategies to meet the requirements of the elderly.