Abstract Social determinants of health (SDH) are strongly associated with oral health outcomes, and oral health literacy (OHL) is a potential factor that can modify this association. This study evaluated the association between SDH and OHL, including functional and interactive dimensions of OHL. The cross sectional study was conducted with 354 adults recruited from public dental clinics in southern Brazil. Functional OHL was measured using the Brazilian version of the Rapid Estimate of Adult Literacy in Dentistry (BREALD-30) and the Health Literacy Dental Scale (HeLD-14), for the evaluation of interactional OHL. SDH was evaluated through a structured questionnaire, and economic class was determined based on the Brazilian Economic Classification Criteria. The statistical analysis involved bivariate and multivariate Poisson regression with robust variance (α=0.05) to estimate rate ratios (RR) and 95% confidence intervals (CI). Among the 354 participants, 284 (80.2%) were women and the mean age was 22.9 ± 4.9 years. The median BREALD-30 score was 24 (1st/3rd quintile: 20/27) and the median HeLD-14 score was 45 (1st/3rd quintile: 37/50). Most participants had up to eight years of schooling (71.5%) and belonged to the “C” Economic Class or lower (94.1%). The multiple regression analysis showed that schooling and economic class were associated with the BREALD-30 and HeLD-14 scores, income and age were associated with the HeLD-14 score, and marital status and occupation were associated with the BREALD-30 score. Different dimensions of OHL were associated with SDH in Brazilian adults. This aspect should be incorporated into strategies for improving OHL levels in individuals or populations.

RESUMO CONTEXTO: A hipomineralização de molares e incisivos (HMI) é um defeito de desenvolvimento de esmalte com etiologia multifatorial. Embora a relação entre doença celíaca (DC) e defeito de desenvolvimento de esmalte já tenha sido demonstrada, a associação entre DC e HMI ainda é incerta. OBJETIVO: O objetivo deste estudo foi analisar a ocorrência de HMI em pacientes com DC. MÉTODOS: Foram selecionados 40 pacientes com DC e um grupo controle com 40 indivíduos sem a doença. O diagnóstico da HMI foi realizado por examinador calibrado (k≥0,889) segundo critérios da Academia Europeia de Odontopediatria. Dados foram analisados por estatística descritiva e teste exato de Fischer (α=0,05). RESULTADOS: Dos 80 participantes, 10 apresentaram HMI sendo 8 indivíduos com DC. Pacientes celíacos apresentaram 4,75 vezes a chance de ocorrência de HMI que grupo controle (IC 95%: 2,22-10,18; P=0,044). No total dos dentes avaliados (n=978), 22 apresentaram HMI: 20 dentes em indivíduos com DC e 2 entre aqueles sem a doença. Todos os participantes com DC e portadores de HMI apresentavam a forma clássica da doença. Participantes com DC mostraram 17 (85,0%) dentes com opacidades demarcadas, 2 (10,0%) colapsos pós-eruptivos e 1 (5,0%) restauração atípica. Grupo controle apresentou apenas opacidades demarcadas. CONCLUSÃO: DC aumentou a chance de HMI e associada a manifestações clínicas da DC pode auxiliar no diagnóstico da doença.

ABSTRACT BACKGROUND: Molar incisor hypomineralization (MIH) is a developmental enamel defect with multifactorial etiology. Although the relationship between celiac disease (CD) and developmental enamel defect was demonstrated, the association between CD and MIH is uncertain. OBJECTIVE: The objective of this study was to analyze the occurrence of MIH in CD patients. METHODS: Forty CD patients and a control group with 40 healthy individuals were selected. A calibrated examiner (k≥0.889) according to the European Academy of Pediatric Dentistry criteria performed the diagnosis of MIH. Data were analyzed by descriptive statistics and Fischer’s exact test (α=0.05). RESULTS: Of the 80 participants, ten presented MIH with eight individuals with CD. Celiac patients presented 4.75 times the chance of occurrence of MIH than the control group (95% CI: 2.22-10.18; P=0.044). In all the evaluated teeth (n=978), 22 had MIH: 20 teeth in individuals with CD and two in those without the disease. All CD participants with MIH presented the classic form of the disease. CD participants showed 17 teeth (85.0%) with demarcated opacities, two (10.0%) post-eruptive collapses and one (5.0%) atypical restoration. The control group presented only demarcated opacities. CONCLUSION: CD increased the chance of MIH and associated with its clinical manifestations can assist in the diagnosis of CD.