OBJECTIVES: The aim of this study was to analyse inequalities in the use of dental care services according to socioeconomic position (SEP) in individuals aged ≥50 years in European countries in 2006, to examine the association between the degree of public coverage of dental services and the extent of inequalities, and specifically to determine whether countries with higher public health coverage show lower inequalities. METHODS: We carried out a cross-sectional study of 12 364 men and 14 692 women aged ≥50 years from 11 European countries. Data were extracted from the second wave of the Survey of Health, Ageing and Retirement in Europe (SHARE 2006). The dependent variable was use of dental care services within the previous year, and the independent variables were education level as a measure of SEP, whether services were covered to some degree by the country's public health system, and chewing ability as a marker of individuals' need for dental services. Age-standardized prevalence of the use of dental care as a function of SEP was calculated, and age-adjusted indices of relative inequality (RII) were computed for each type of dental coverage, sex and chewing ability. RESULTS: Socioeconomic inequalities in the use of dental care services were higher in countries where no public dental care cover was provided than in countries where there was some degree of public coverage. For example, men with chewing ability from countries with dental care coverage had a RII of 1.39 (95%CI: 1.29-1.51), while those from countries without coverage had a RII of 1.96 (95%CI: 1.72-2.23). Women without chewing ability from countries with dental care coverage had a RII of 2.15 (95%CI: 1.82-2.52), while those from countries without coverage had a RII of 3.02 (95%CI: 2.47-3.69). CONCLUSIONS: Dental systems relying on public coverage seem to show lower inequalities in their use, thus confirming the potential benefits of such systems.

This study uses data from SHARE release 2.5.0, as of 24 May 2011. The SHARE data collection has been primarily funded by the European Commission through the 5th framework programme (project QLK6-CT-2001- 00360 in the thematic programme Quality of Life), through the 6th framework programme (projects SHARE-I3, RII-CT2006-062193, COMPARE, CIT5-CT-2005-028857 and SHARELIFE, CIT4-CT-2006-028812) and through the 7th framework programme (SHARE-PREP, 211909 and SHARE-LEAP, 227822). Additional funding from the U.S. National Institute on Aging (U01 AG09740-13S2, P01 AG005842, P01 AG08291, P30 AG12815, Y1-AG4553-01 and OGHA 04-064, IAG BSR06-11, R21 AG025169)