Abstract The aim of the present study was to investigate the discontinuity of oral health care among children and adolescents who accessed emergency services at primary care units and urgent care units. Records were reviewed of patients aged 0 to 17 years treated in the public healthcare system in city of Curitiba, Brazil. Discontinuity was considered when elective treatment was not registered at the primary care unit within six months after urgent care. The sample was stratified based on the Municipal Human Development Index (MHDI) (≤0.799 or ≥0.800). The association between discontinuity and covariables was assessed using univariate and multivariate Poisson regression models with robust variance (α=0.05). The incidence of discontinuity was 42.2%. In the MHDI≤0.799 stratum, the risk of discontinuity was greater among children younger than five years of age and individuals who had not had a dental appointment in the previous year. In both MHDI strata, the risk of discontinuity was higher in patients who received urgent care at an urgent care unit than those treated at a primary care unit. The incidence of the discontinuity of oral health care was high and was strongly influenced by the characteristics of dental service utilization among individuals living in regions with a lower MHDI.

Resumo Este trabalho estudou a descontinuidade do cuidado (DC) em saúde bucal entre crianças e adolescentes que acessaram os serviços de urgência nas unidades básicas de saúde (UBS) e de pronto atendimento (UPA). Foram avaliados prontuários de indivíduos de 0 a 17 anos vinculados ao Sistema Único de Saúde de Curitiba. Considerou-se DC quando não houve o registro de consulta eletiva na UBS nos 6 meses subsequentes ao atendimento de urgência. A amostra foi estratificada pelo Índice de Desenvolvimento Humano Municipal (IDHM) da Unidade de Desenvolvimento Humano em que o paciente residia em ≤0,799 ou ≥0,800. A associação entre DC e demais covariáveis foi analisada através de regressão de Poisson com variância robusta uni e multivariada (α=0,05). A incidência de DC foi de 42,2%. No estrato de IDHM≤0,799, o risco de DC foi maior para as crianças com menos de 5 anos de idade e aqueles que não visitaram o dentista no último ano. Nos dois estratos, o risco de DC foi maior para aquelas que utilizaram a UPA para o atendimento de urgência quando comparadas com as que receberam atendimento na UBS. A DC em saúde bucal apresentou alta incidência, sendo que entre os residentes em regiões com menor IDHM, sofreu uma maior influência das características de uso dos serviços.

Abstract The study aims to identify marital violence precipitating/intensifying elements during the COVID-19 pandemic. This is a narrative review of the literature, and the search was carried out in May 2020. We employed the PubCovid-19 platform, which is indexed in the United States National Library of Medicine (PubMed) and the Excerpta Medica (EMBASE) database. English descriptors “Domestic violence”, “COVID-19”, and “Intimate Partner Violence” were used in the search, and nine papers were selected for full-text reading. Three empirical categories were elaborated from the exploration of the selected material: Economic instability, Alcohol and other drugs use/abuse, and Weaker women’s support network. Support networks for women in situations of marital violence should be expanded in this pandemic context, with emphasis on the use of digital technologies as possible tools for screening pandemic-related violence cases.

Resumo O estudo tem por objetivo identificar elementos precipitadores/intensificadores da violência conjugal em tempos de pandemia da Covid-19. Trata-se de uma revisão narrativa da literatura, tendo a busca sido realizada no mês de maio de 2020. Utilizou-se a plataforma PubCovid-19, a qual está indexada na Biblioteca Nacional de Medicina dos Estados Unidos (PubMed) e no Banco de dados Excerpta Medica (EMBASE). Para a realização da busca foram utilizados os seguintes descritores em inglês: “Domestic violente”; “Covid-19” e “Intimate Partner Violence”. Foram selecionados nove artigos para leitura na íntegra. A partir da exploração do material selecionado, foram elaboradas três categorias empíricas a saber: Instabilidade econômica, Uso/abuso de álcool e outras drogas e Enfraquecimento da rede de apoio da mulher. É importante que nesse contexto de pandemia, sejam ampliadas as redes de apoio à mulher em situação de violência conjugal, com destaque para o uso de tecnologias digitais como possíveis ferramentas para a triagem de casos de violência em tempos de pandemia.

Resumo O estudo tem por objetivo identificar elementos precipitadores/intensificadores da violência conjugal em tempos de pandemia da Covid-19. Trata-se de uma revisão narrativa da literatura, tendo a busca sido realizada no mês de maio de 2020. Utilizou-se a plataforma PubCovid-19, a qual está indexada na Biblioteca Nacional de Medicina dos Estados Unidos (PubMed) e no Banco de dados Excerpta Medica (EMBASE). Para a realização da busca foram utilizados os seguintes descritores em inglês: “Domestic violente”; “Covid-19” e “Intimate Partner Violence”. Foram selecionados nove artigos para leitura na íntegra. A partir da exploração do material selecionado, foram elaboradas três categorias empíricas a saber: Instabilidade econômica, Uso/abuso de álcool e outras drogas e Enfraquecimento da rede de apoio da mulher. É importante que nesse contexto de pandemia, sejam ampliadas as redes de apoio à mulher em situação de violência conjugal, com destaque para o uso de tecnologias digitais como possíveis ferramentas para a triagem de casos de violência em tempos de pandemia.

Abstract The study aims to identify marital violence precipitating/intensifying elements during the COVID-19 pandemic. This is a narrative review of the literature, and the search was carried out in May 2020. We employed the PubCovid-19 platform, which is indexed in the United States National Library of Medicine (PubMed) and the Excerpta Medica (EMBASE) database. English descriptors “Domestic violence”, “COVID-19”, and “Intimate Partner Violence” were used in the search, and nine papers were selected for full-text reading. Three empirical categories were elaborated from the exploration of the selected material: Economic instability, Alcohol and other drugs use/abuse, and Weaker women’s support network. Support networks for women in situations of marital violence should be expanded in this pandemic context, with emphasis on the use of digital technologies as possible tools for screening pandemic-related violence cases.

Resumo Este trabalho estudou a descontinuidade do cuidado (DC) em saúde bucal entre crianças e adolescentes que acessaram os serviços de urgência nas unidades básicas de saúde (UBS) e de pronto atendimento (UPA). Foram avaliados prontuários de indivíduos de 0 a 17 anos vinculados ao Sistema Único de Saúde de Curitiba. Considerou-se DC quando não houve o registro de consulta eletiva na UBS nos 6 meses subsequentes ao atendimento de urgência. A amostra foi estratificada pelo Índice de Desenvolvimento Humano Municipal (IDHM) da Unidade de Desenvolvimento Humano em que o paciente residia em ≤0,799 ou ≥0,800. A associação entre DC e demais covariáveis foi analisada através de regressão de Poisson com variância robusta uni e multivariada (α=0,05). A incidência de DC foi de 42,2%. No estrato de IDHM≤0,799, o risco de DC foi maior para as crianças com menos de 5 anos de idade e aqueles que não visitaram o dentista no último ano. Nos dois estratos, o risco de DC foi maior para aquelas que utilizaram a UPA para o atendimento de urgência quando comparadas com as que receberam atendimento na UBS. A DC em saúde bucal apresentou alta incidência, sendo que entre os residentes em regiões com menor IDHM, sofreu uma maior influência das características de uso dos serviços.

Abstract The aim of the present study was to investigate the discontinuity of oral health care among children and adolescents who accessed emergency services at primary care units and urgent care units. Records were reviewed of patients aged 0 to 17 years treated in the public healthcare system in city of Curitiba, Brazil. Discontinuity was considered when elective treatment was not registered at the primary care unit within six months after urgent care. The sample was stratified based on the Municipal Human Development Index (MHDI) (≤0.799 or ≥0.800). The association between discontinuity and covariables was assessed using univariate and multivariate Poisson regression models with robust variance (α=0.05). The incidence of discontinuity was 42.2%. In the MHDI≤0.799 stratum, the risk of discontinuity was greater among children younger than five years of age and individuals who had not had a dental appointment in the previous year. In both MHDI strata, the risk of discontinuity was higher in patients who received urgent care at an urgent care unit than those treated at a primary care unit. The incidence of the discontinuity of oral health care was high and was strongly influenced by the characteristics of dental service utilization among individuals living in regions with a lower MHDI.

Abstract Background Takotsubo syndrome (TTS) is an acquired form of cardiomyopathy. National Brazilian data on this condition are scarce. The Takotsubo Multicenter Registry (REMUTA) is the first to include multicenter data on this condition in Brazil. Objective To describe the clinical characteristics, prognosis, in-hospital treatment, in-hospital mortality, and mortality during 1 year of follow-up. Methods This is an observational, retrospective registry study including patients admitted to the hospital with diagnosis of TTS and patients admitted for other reasons who developed this condition. Evaluated outcomes included triggering factor, analysis of exams, use of medications, complications, in-hospital mortality, and mortality during 1 year of follow-up. A significance level of 5% was adopted. Results The registry included 169 patients from 12 centers in the state of Rio de Janeiro, Brazil. Mean age was 70.9 ± 14.1 years, and 90.5% of patients were female; 63% of cases were primary TTS, and 37% were secondary. Troponin I was positive in 92.5% of patients, and median BNP was 395 (176.5; 1725). ST-segment elevation was present in 28% of patients. Median left ventricular ejection fraction was 40 (35; 48)%. We observed invasive mechanical ventilation in 25.7% of cases and shock in 17.4%. Mechanical circulatory support was used in 7.7%. In-hospital mortality was 10.6%, and mortality at 1 year of follow-up was 16.5%. Secondary TTS and cardiogenic shock were independent predictors of mortality. Conclusion The results of the REMUTA show that TTS is not a benign pathology, as was once thought, especially regarding the secondary TTS group, which has a high rate of complications and mortality. (Arq Bras Cardiol. 2020; 115(2):207-216)

Resumo Fundamento A síndrome de takotsubo (takotsubo) é uma forma de cardiomiopatia adquirida. Dados nacionais sobre essa condição são escassos. O Registro REMUTA é o primeiro a incluir dados multicêntricos dessa condição no nosso país. Objetivo Descrever as características clínicas, prognóstico, tratamento intra-hospitalar e mortalidade hospitalar e em 1 ano de seguimento. Métodos Estudo observacional, retrospectivo, tipo registro. Incluídos pacientes internados com diagnóstico de takotsubo ou que desenvolveram esta condição durante internação por outra causa. Os desfechos avaliados incluíram fator desencadeador, análise dos exames, uso de medicações, complicações e óbito intra-hospitalar e em 1 ano de seguimento. O nível de significância adotado foi de 5%. Resultados Foram incluídos 169 pacientes, em 12 centros no Estado do Rio de Janeiro. A idade média foi de 70,9 ± 14,1 anos e 90,5% eram do sexo feminino; 63% dos casos foram de takotsubo primário e 37% secundário. Troponina I foi positiva em 92,5% dos pacientes e a mediana de BNP foi de 395 (176,5; 1725). Supradesnivelamento do segmento ST esteve presente em 28% dos pacientes. A fração de ejeção do ventrículo esquerdo teve mediana de 40 (35; 48)%. Observamos taxa de 25,7% de ventilação mecânica invasiva e 17,4% de choque. Suporte circulatório mecânico foi utilizado em 7,7%. A mortalidade intra-hospitalar foi de 10,6% e a mortalidade ao final de 1 ano foi de 16,5%. Takotsubo secundário e choque cardiogênico foram preditores independentes de mortalidade. Conclusão Os resultados do REMUTA mostram que takotsubo não se trata de patologia benigna como se pensava, especialmente no grupo de takotsubo secundário que acarreta elevada taxa de complicações e de mortalidade. (Arq Bras Cardiol. 2020; 115(2):207-216)

Abstract Background: Extracellular vesicles (EVs) are small membrane-bound vesicles of growing interest in vetetinary parasitology. The aim of the present report was to provide the first isolation, quantification and protein characterization of EVs from buffalo (Bubalus bubalis) sera infected with Theileria spp. Methods: Infected animals were identified through optical microscopy and PCR. EVs were isolated from buffalo sera by size-exclusion chromatography and characterized using western blotting analysis, nanoparticle tracking analysis and transmission electron microscopy. Subsequently, the proteins from isolated vesicles were characterized by mass spectrometry. Results: EVs from buffalo sera have shown sizes in the 124-140 nm range and 306 proteins were characterized. The protein-protein interaction analysis has evidenced biological processes and molecular function associated with signal transduction, binding, regulation of metabolic processes, transport, catalytic activity and response to acute stress. Five proteins have been shown to be differentially expressed between the control group and that infected with Theileria spp., all acting in the oxidative stress pathway. Conclusions: EVs from buffaloes infected with Theileria spp. were successfully isolated and characterized. This is an advance in the knowledge of host-parasite relationship that contributes to the understanding of host immune response and theileriosis evasion mechanisms. These findings may pave the way for searching new EVs candidate-markers for a better production of safe biological products derived from buffaloes.

Abstract The aim of this study was to evaluate the association between number of cavitated dental caries in adolescents and family cohesion, drug use, sociodemographic factors and visits to the dentist. A cross-sectional study was conducted with 746 adolescents aged 15 to 19 years from Campina Grande, Brazil. The parents answered a questionnaire addressing sociodemographic data, and the adolescents answered questionnaires on drug use, type of family cohesion and visits to the dentist. Two examiners underwent training and calibration exercises (K > 0.80) to diagnose dental caries using the Nyvad criteria. A directed acyclic graph was created to select the variables to be controlled in the statistical model. Associations between the independent variables and the outcome were determined using robust Poisson Regression analysis for complex samples (α = 5%). Rate ratios (RR) and 95% confidence intervals (CI) were calculated. The prevalence of dental caries and cavitated lesions among the adolescents was 92.8% and 41.6%, respectively. The following variables remained associated with the number of cavitated lesions in the multivariate analysis: disengaged (RR: 6.30; 95%CI: 1.24–31.88; p = 0.028 ), separated (RR: 4.80; 95%CI: 1.03–22.35; p = 0.046) and connected (RR: 5.23; 95%CI: 1.27–21.59; p = 0.024) levels of family cohesion, and high social class (RR: 0.55; 95%CI: 0.39–0.76; p = 0.001). In conclusion, this paper posits that adolescents with a lower socioeconomic status, and those whose family cohesion was classified as disengaged, separated or connected, had a larger number of cavitated lesions.

ABSTRACT OBJECTIVE Evaluate socio-demographic, family and behavioral factors associated with oral health literacy (OHL) in adolescents. METHODS Cross-sectional study conducted with adolescents aged 15 to 19 years in Campina Grande, Brazil. Parents/guardians answered a questionnaire addressing socio-demographic data. The adolescents answered validated instruments on family cohesion and adaptability (family adaptability and cohesion evaluation scale), drug use (alcohol, smoking and substance involvement screening test), type of dental service used for last appointment and OHL (Brazilian version of the Rapid Estimate of Oral Health Literacy in Dentistry). Two dentists were trained to evaluate OHL (K = 0.87–0.88). Descriptive analysis was performed, followed by Poisson regression analysis (α = 5%). A directed acyclic graph was used to select independent variables in the study. RESULTS The following variables remained associated with better OHL: high mother’s schooling level (RR = 1.07; 95%CI: 1.03–1.12), high income (RR = 1.04; 95%CI: 1.01–1.09), white ethnicity/skin color (RR = 1.05; 95%CI: 1.01–1.10), married parents (RR = 1.04; 95%CI: 1.01–1.09), “enmeshed” family cohesion (RR = 1.21; 95%CI: 1.12–1.30), “structured” (RR = 1.06; 95%CI: 1.01–1.12) or “rigid” (RR = 1.11; 95%CI: 1.04–1.19) family adaptability, having more than five residents in the home (RR = 1.07; 95%CI: 1.01–1.14) and having used a private dental service during the last appointment (RR = 1.08; 95%CI: 1.03–1.13). CONCLUSION Family functioning and socio-demographic factors influence the level of oral health literacy among adolescents.

ABSTRACT OBJECTIVE Evaluate socio-demographic, family and behavioral factors associated with oral health literacy (OHL) in adolescents. METHODS Cross-sectional study conducted with adolescents aged 15 to 19 years in Campina Grande, Brazil. Parents/guardians answered a questionnaire addressing socio-demographic data. The adolescents answered validated instruments on family cohesion and adaptability (family adaptability and cohesion evaluation scale), drug use (alcohol, smoking and substance involvement screening test), type of dental service used for last appointment and OHL (Brazilian version of the Rapid Estimate of Oral Health Literacy in Dentistry). Two dentists were trained to evaluate OHL (K = 0.87–0.88). Descriptive analysis was performed, followed by Poisson regression analysis (α = 5%). A directed acyclic graph was used to select independent variables in the study. RESULTS The following variables remained associated with better OHL: high mother’s schooling level (RR = 1.07; 95%CI: 1.03–1.12), high income (RR = 1.04; 95%CI: 1.01–1.09), white ethnicity/skin color (RR = 1.05; 95%CI: 1.01–1.10), married parents (RR = 1.04; 95%CI: 1.01–1.09), “enmeshed” family cohesion (RR = 1.21; 95%CI: 1.12–1.30), “structured” (RR = 1.06; 95%CI: 1.01–1.12) or “rigid” (RR = 1.11; 95%CI: 1.04–1.19) family adaptability, having more than five residents in the home (RR = 1.07; 95%CI: 1.01–1.14) and having used a private dental service during the last appointment (RR = 1.08; 95%CI: 1.03–1.13). CONCLUSION Family functioning and socio-demographic factors influence the level of oral health literacy among adolescents.

ABSTRACT OBJECTIVE To perform a cross-cultural adaptation of the Clear Communication Index instrument from the Centers for Disease Control and Prevention (CDC-CCI) from English to Brazilian Portuguese. METHODS This study comprised initial discussion about the conceptual equivalence of the instrument by a committee formed by experts on health education. We performed translations, synthesis of translations, back-translations, revision by the committee, and linguistic revision. Semantic equivalence was obtained by analyzing the referential and general meaning of each item by the committee, resulting in a pre-final version of the instrument. Subsequently, thirty professionals with health sciences degrees performed a pre-test. These professionals used the pre-final version of the instrument to assess a health education material. A questionnaire was applied to evaluate the acceptability of the instrument, the understanding of each of the 20 items, as well as the individual and professional variables. We analyzed the scores attributed to the health education material, the variables related to healthcare professionals, the proportions of the acceptability of the instrument, and the comprehension of each item. RESULTS After we obtained the conceptual equivalence of the instrument, the committee of experts, the instrument’s main author, and the linguist produced the pre-final version using two translations, a synthesis of the translations, and two back-translations. A general equivalence was maintained in 15 of the 20 items (75%), four of the items were slightly altered (20%), and one item was very altered (5%). Nineteen items presented referential equivalence or near equivalence (95%). We then carried out with the pre-test, in which the professionals used the pre-final version. Two items in the domains of “risks” and “main message” were unclear and needed to be revised. CONCLUSION The process of cross-cultural adaptation of the Clear Communication Index provided an adapted version to the Brazilian Portuguese language.

ABSTRACT OBJECTIVE To perform a cross-cultural adaptation of the Clear Communication Index instrument from the Centers for Disease Control and Prevention (CDC-CCI) from English to Brazilian Portuguese. METHODS This study comprised initial discussion about the conceptual equivalence of the instrument by a committee formed by experts on health education. We performed translations, synthesis of translations, back-translations, revision by the committee, and linguistic revision. Semantic equivalence was obtained by analyzing the referential and general meaning of each item by the committee, resulting in a pre-final version of the instrument. Subsequently, thirty professionals with health sciences degrees performed a pre-test. These professionals used the pre-final version of the instrument to assess a health education material. A questionnaire was applied to evaluate the acceptability of the instrument, the understanding of each of the 20 items, as well as the individual and professional variables. We analyzed the scores attributed to the health education material, the variables related to healthcare professionals, the proportions of the acceptability of the instrument, and the comprehension of each item. RESULTS After we obtained the conceptual equivalence of the instrument, the committee of experts, the instrument’s main author, and the linguist produced the pre-final version using two translations, a synthesis of the translations, and two back-translations. A general equivalence was maintained in 15 of the 20 items (75%), four of the items were slightly altered (20%), and one item was very altered (5%). Nineteen items presented referential equivalence or near equivalence (95%). We then carried out with the pre-test, in which the professionals used the pre-final version. Two items in the domains of “risks” and “main message” were unclear and needed to be revised. CONCLUSION The process of cross-cultural adaptation of the Clear Communication Index provided an adapted version to the Brazilian Portuguese language.

Abstract Objective: To measure the influence of oral health literacy (OHL) level in the improvement of knowledge about traumatic dental injuries (TDI) after an educational intervention. Material and Methods: A total of 257 parents of children aged 0-12 years had their OHL level evaluated (BREALD-30). A leaflet with information about how to respond to TDI Emergency was developed and delivered to the parents. A questionnaire about attitudes towards TDI was administered before (TDIQ1) and after (TDIQ2) parents read the educational leaflet. The hypotheses were evaluated by non-parametric tests, correlation analysis and logistic regression. Results: The mean OHL score was 21.6. The means of correct answers in TDIQ1 were 5.5 and 5.9 (p = 0.066) and in TDIQ2 were 6.6 and 7.7 (p=0.003) between the groups with inadequate and marginal/adequate OHL, respectively. In the logistic regression, the total score of BREALD-30 and the maximum number of correct answers in TDIQ2 maintained statistical association when adjusted for schooling, gender, age of the parents, family income and the number of correct answers in the first application of the questionnaire. Conclusion: The level of OHL influenced the improvement of parents’ knowledge about emergency care in cases of TDI in children from an educational intervention using a leaflet, and this intervention was more effective for parents with adequate OHL.

Abstract Objective: To investigate the association between child’s daytime caring person and risk for higher early childhood caries (ECC) experience. Material and Methods: The sample consisted of all clinical records (census) of children (0-3 years old) attended in a public dental clinic, which contained information about caries experience and child’s daytime caring person (mother, grandmother or others). Caries experience was dichotomized as dmft ≤ 2 or dmft >2. Data were analyzed by the chi-square (α = 0.05). Binary logistic regression models were built. Results: From a total of 310 children, 19% of children had the grandmother as daytime caring person. There was no association between child’s daytime caring person and caries experience (p=0.32). Logistic regression analysis showed that low daytime caregiver schooling (OR: 5.76 95%CI 1.18-28.18; p=0.02) and child’s age (OR: 1.14 95% CI 1.09-1.19; p=0.00) were risk factors, and breastfeeding duration (> 9 months - OR: 0.38 95% CI 0.21-0.68; p=0.00), no nocturnal feeding (OR: 0.50 95% CI 0.27-0.91; p=0.02), and absence of sugar consumption between main meals (OR: 0.50 95% CI 0.28-0.89; p=0.02) were protection factors for ECC. Conclusion: A higher caries experience in early childhood is not associated to child’s daytime caring person. On the other hand, the higher caries experience is associated with low caregiver schooling and older children.

Abstract Objective: To evaluate the relationship between excess body weight (EBW) and the prevalence of dental caries in preschoolers considering parental control regarding snack consumption. Material and Methods: An observational, population-based, cross-sectional study was conducted at Municipal Child Education Centers in the city of Curitiba, Brazil, involving a representative sample of 686 preschool children aged four to five years and eleven months and their parents/caregivers. Dental caries was analyzed using the dmft index. Weight and height were measured for the determination of the body mass index, which was categorized for each z-score range considering age and sex. Children with overweight or obesity were considered to have EBW. The assessment of nutritional status was performed with the aid of the WHO Anthro and WHO Anthro Plus programs. The data were analyzed using univariate and multivariate Poisson regression analysis with robust variance (α= 0.05). Results: The children with EBW had a lower prevalence rate of caries, but this association lost its significance when adjusted by the other variables included in the multivariate model. In the multivariate regression analysis, household income per capita (PR=0.804; 95%CI: 0.665-0.972), child's age (PR=1.015; 95%CI: 1.001-1.029) and snack limits (PR=0.839; 95%IC: 0.732-0.962) were associated with a greater prevalence rate of dental caries. Conclusion: Excess body weight was not significantly associated with dental caries, whereas a lower parental limit regarding snack consumption by the children was independently associated with a higher prevalence rate of dental caries.

ABSTRACT OBJECTIVE To evaluate the psychometric properties of the Brazilian Portuguese version of the Rapid Estimate of Adult Literacy in Dentistry (BREALD-30) administered to adolescents. METHODS The study included 750 adolescents: 375 aged 12 years and 375 aged 15–19 years, attending public and private schools in Campina Grande, state of Paraíba, Brazil, in 2017. Reliability was measured based on internal consistency and test-retest reliability. Convergent validity was measured based on correlations between BREALD-30 and Functional Literacy Indicator scores. Divergent validity was measured by comparing BREALD-30 scores with sociodemographic variables. For predictive validity, the association between BREALD-30 scores and the presence of cavitated carious lesions was tested using a multiple logistic regression model. All statistical tests were performed with a significance level of 5%. RESULTS BREALD-30 showed good internal consistency for the 12 year olds and 15 to19 year olds (Cronbach’s alpha = 0.871 and 0.834, respectively) and good test-retest reliability [intraclass correlation coefficient (ICC) = 0.898 and 0.974; kappa = 0.804 and 0.808, respectively]. Moreover, item-total correlation was satisfactory for all items. BREALD-30 had convergent validity with the Functional Literacy Indicator for 12 year olds (rs = 0.558, p < 0.001) and for 15 to 19 year olds (rs = 0.652, p < 0.001). Participants with higher oral health literacy levels who attended private schools (p < 0.001), belonged to economic classes A and B2 (p < 0.001), and who had parents with higher education levels (p < 0.001) were included, indicating the divergent validity of the BREALD-30. Participants with lower BREALD-30 scores were more likely to have cavitated carious lesions [12 year olds: odds ratio (OR) = 2.37; 95% confidence interval (95%CI): 1.48–3.80; 15 to 19 year olds: OR = 1.96; 95%CI 1.24–3.11]. CONCLUSIONS BREALD-30 shows satisfactory psychometric properties for use on Brazilian adolescents and can be applied as a fast, simple, and reliable measure of oral health literacy.