ABSTRACT
Abstract The aim of this study was to determine the association between oral health-related quality of life (OHRQoL) and social marginalization in people aged 60 years and older enrolled in social security in Mexico. A cross-sectional and analytical study was carried out in older adults. To assess the OHRQoL, the OHIP-14 instrument was applied, and the degree of social marginalization and sociodemographic characteristics were analyzed. Measures of central tendency and dispersion, simple frequencies and proportions were estimated. Student's t-test was used for comparison of means, and prevalence ratio (PR) and logistic regression were used to assess associations, all with a significance value of 0.05 and 95% confidence intervals. Perceived OHRQoL in the population measured through the OHIP-14 reached an average value of 9.84 ± 8.91, with the highest value in the dimension of physical pain (2.06 ± 1.91). Perceived treatment need was higher among people with social marginality (p = 0.011). The multivariate analysis shows that marginalized people have a lower OHRQoL. Socially marginalized older adults showed a low a better perception of OHRQoL, independent of demographic and clinical factors.