Socioeconomic inequalities in dental visits among high school students in Chile, years 2013 and 2017.

Objective: To analyze prevalence changes in dental visits and socioeconomic inequalities among high school students in Chile, years 2013 and 2017.

Methods: Analysis of nationally representative data from 2013 and 2017 waves of the Chilean National Socioeconomic Characterization Survey (CASEN). In a sample of high school students aged 14 to 20 years old (n=12699 in 2013; n=11122 in 2017) we investigated prevalence of dental visits in the last 3 months, by urban-rural residence, sex, type of health insurance, type of school, income level and benefit of dental care at school. For inequality analysis we estimated prevalence ratio of dental visits in the last 3 months according to study variables.

Results: There was a significant increase in the prevalence of dental visits in the last 3 months and the receipt of dental care at school between years 2013 and 2017. The highest prevalence of dental visits in the last 3 months was found among students living in urban residence, women, with private insurance, in the highest income level, that attended private schools. Inequalities persist but the gap associated with type of residence, health insurance and between the lowest income quintiles decreased over the years.

Conclusions: The Comprehensive Dental Care for senior year high school students, a public policy that began in 2015 in Chile, could have aided the gap reduction and the increase in visits to the dentist in the last 3 months in this group.