Oral Medicine Experience and Attitudes Toward Oral Cancer: An Evaluation of Dentists Working in Primary Health Care.

This analytical, cross-sectional, observational study aimed to evaluate the perception of dentists working at the public system of the state of Rio Grande do Sul, southern Brazil, regarding academic training to treat oral lesions, adoption of preventive measures for oral cancer, and attitude toward the need to perform oral biopsies. The sample consisted of questionnaires filled out by 192 dentists (153 women and 39 men) working in primary health care who participated in training activities on oral cancer diagnosis in July 2016. To enroll in the training activities, the professionals completed an online questionnaire to evaluate their perceptions regarding oral cancer issues. With respect to preventive measures, 96.88% of dentists reported performing full mouth examination, 87.50% reported providing tobacco cessation counseling, and 51.04% reported giving advice on excessive alcohol consumption. In addition, 72.40% and 44.79% of dentists considered, respectively, clinical training and theory instruction in oral medicine to be insufficient during undergraduate school. Only 8.33% reported performing biopsies in daily clinical routine, and almost 90% reported referring the patient to a specialist from the public system or universities. Lack of experience was the main reason not to perform a biopsy. The dentists in our sample recognize the importance of preventive measures for oral cancer, but few of them perform biopsies regularly. Therefore, there is a need for continuing education actions including practical training.

Innovations in the national household random sampling in Brazilian National Health Survey: results from Starfield and Shi's adult primary care assessment tool (PCAT).

BACKGROUND: Several middle and upper income countries carry out household surveys that seek to trace the profile of access and use of health services. Probably one of the most ambitious examples is Brazil, with its National Health Survey (PNS-2019). We evaluated PNS-2019, presenting in an unprecedented way, one of its innovations, which refer to Starfield and Shi's adult Primary Care Assessment Tool (PCAT). METHODS: Based on a cross-sectional study, we evaluated Module H of the PNS-2019, which interviewed a probabilistic sample of about 10,000 adults in 2019 in all 27 Brazilian states. According to the PCAT methodology, an average score equal to or above 6.6 indicates a greater orientation and quality of the evaluated primary care services. RESULTS: Brazilian overall PCAT score [5, 9] reveals the need to improve primary health care services across the country. There were no statistically significant differences in the scores by sex (men and women, 5.9), and race (whites 5.9 [5.7; 6.0] and brown / black 5.9 [5.8; 6.0]). On the other hand, there was a difference in terms of age. The elderly evaluated the services in a more positive way (score = 6.1 [6.0; 6.2]), when compared to those aged 40-59 years (5.9 [5.7; 6.0]) and 18 to 39 years (5.6 [5.5; 5.8]). First results of PNS-2019 show that the population that most needs primary care services in SUS is the one with the best perception and the most positive evaluation of the actions and procedures offered in health facilities. DISCUSSION: During 2019, Brazil undertook important structural reforms in PHC based on a new financing model with the aim of inducing an improvement in efficiency and strengthening its attributes. It is essential that countries with universal health coverage (UHC) guarantee access to their population and, especially, the most vulnerable, seek better efficiency of these services and regularly assess PHC based on the population's perception, through an independent methodology that monitor the quality of services and the strength of PHC, generating value for public resources applied to health services.

RESUMO: INTRODUçãO: Vários países de renda média e alta realizam pesquisas domiciliares que procuram traçar o perfil de acesso e uso dos serviços de saúde. Provavelmente um dos exemplos mais ambiciosos é o Brasil, com sua PNS. Avaliamos esse inquérito e apresentamos, de forma inédita uma de suas inovações, que se refere ao uso do instrumento Primary Care Assessment Tool (PCAT). MéTODOS: Com base em um estudo transversal, avaliamos o Módulo H da PNS-2019, que entrevistou uma amostra probabilística de cerca de 10.000 adultos em 2019 em todos os 27 estados brasileiros. De acordo com a metodologia do PCAT, um escore médio igual ou acima de 6,6 indica uma maior orientação e qualidade dos serviços de atenção primária avaliados. RESULTADOS: O escore médio geral do PCAT no Brasil foi de 5,9, revelando a necessidade de melhoria dos serviços de atenção primária à saúde em todo o país. Não houve diferenças estatisticamente significantes nos escores por sexo (homens e mulheres, 5,9) e raça (brancos 5,9 [5,7; 6,0] e pardos / pretos 5,9 [5,8; 6,0]). Por outro lado, houve diferença em termos de idade. Os idosos avaliaram os serviços de forma mais positiva (escore = 6,1 [6,0; 6,2]), quando comparados aos de 40­59 anos (5,9 [5,7; 6,0]) e 18 a 39 anos (5,6 [5,5; 5,8]). Os primeiros resultados da PNS-2019 mostram que a população que mais necessita dos serviços de atenção básica no SUS é aquela que tem melhor percepção e avaliação mais positiva das ações e procedimentos oferecidos nas unidades de saúde. DISCUSSãO: Durante o ano de 2019, o Brasil fez reformas estruturais importantes na APS a partir de um novo modelo de financiamento, com o objetivo de induzir uma melhoria da eficiência e fortalecer seus atributos. É fundamental que países com sistemas de saúde de cobertura universal, garantam acesso a sua população e, em especial, aos mais vulneráveis; busquem melhor eficiência desses serviços e avaliem regularmente a APS a partir da percepção da população, por meio de uma metodologia independente que monitore a qualidade dos serviços e a força da APS, gerando valor aos recursos públicos aplicados nos serviços de saúde.

Telemedicine in the driver's seat: new role for primary care access in Brazil and Canada: The Besrour Papers: a series on the state of family medicine in Canada and Brazil.

OBJECTIVE: To contrast how Brazil's and Canada's different jurisdictional and judicial realities have led to different types of telemedicine and how further scale and improvement can be achieved. COMPOSITION OF THE COMMITTEE: A subgroup of the Besrour Centre of the College of Family Physicians of Canada and Canadian telemedicine experts developed connections with colleagues in Porto Alegre, Brazil, and collaborated to undertake a between-country comparison of their respective telemedicine programs. METHODS: Following a literature review, the authors collectively reflected on their experiences in an attempt to explore the past and current state of telemedicine in Canada and Brazil. REPORT: Both Brazil and Canada share expansive geographies, creating substantial barriers to health for rural patients. Telemedicine is an important part of a universal health system. Both countries have achieved telemedicine programs that have scaled up across large regions and are showing important effects on health care costs and outcomes. However, each system is unique in design and implementation and faces unique challenges for further scale and improvement. Addressing regional differences, the normalization of telemedicine, and potential alignment of telemedicine and artificial intelligence technologies for health care are seen as promising approaches to scaling up and improving telemedicine in both countries.

Following the legacy of professors Barbara Starfield and Leiyu Shi in Brazil as health policy: the National Health Survey (PNS), led by the Brazilian National Institute of Geography and Statistics (IBGE) and the Primary Care Assessment Tool (PCAT).

We present to the scientific community the pioneering of Brazilian National Institute of Geography and Statistics (IBGE, the Brazilian Census Bureau) in partnership with the Ministry of Health, the largest fieldwork ever conducted in a single country in the world, using the PCAT in a national household sample survey, visiting more than 100,000 households and 40% of the country's municipalities. In Brazil, PCAT is being consolidated as an instrument to support public policy for the evaluation of primary health care. We believe that it represents a virtuous example of dialogue between scientific community and health management, following the legacy of Professors Barbara Starfield and Leiyu Shi.

Is the YouTube™ an useful source of information on oral leukoplakia?

OBJECTIVES: YouTube™ has become a widely used source of health information. This cross-sectional study aimed to analyze the quality of English language videos on oral leukoplakia available on YouTube™. MATERIALS AND METHODS: A YouTube™ search for oral leukoplakia was performed, leading to 1,690 videos. The first 100 results were examined for exclusion criteria, yielding 28 videos. The source, duration, views, likes, and dislikes of each video were recorded. Two oral medicine residents scored the videos for visibility, popularity, quality, utility, and reliability. RESULTS: Videos were categorized into two groups: independent users or company advertisements (n = 21) and professional organizations or government agencies (n = 5). Analysis showed that, in general, videos were of low quality, usefulness, and reliability. Higher quality videos had more likes (p < .05, Mann-Whitney test). More reliable videos received more likes and presented a higher viewing rate and interaction index (p < .05, Mann-Whitney test). CONCLUSIONS: There are few high-quality videos about oral leukoplakia on YouTube™. Oral medicine professionals and students should attempt to correct this deficit, as they are the holders of evidence-based knowledge and clinical experience.

Pediatric Dentistry in Primary Healthcare: Creation, Development, and Evaluation of a Distance Education Course.

BACKGROUND: Oral health in childhood is a major problem for global public health. In Brazil, the prevalence of childhood tooth decay varies from 12% to 46%. Dental care treatment in Brazil is almost the exclusive responsibility of primary healthcare (PHC). Therefore, it is essential these professionals are prepared to conduct restorative, endodontic, and exodontic treatments and preventive care in children. INTRODUCTION: Children make up a large proportion of the population in territories requiring advanced dental care provided by PHC in Brazil. To care for these patients, it is necessary to have both manual dexterity and technical knowledge of pediatric dentistry. Accordingly, this study aimed to develop a distance course on pediatric dentistry. MATERIALS AND METHODS: A pretest questionnaire consisting of 15 questions was used to assess initial dental knowledge of participants. After completion of a five-module course, participants retook the same initial dental knowledge questionnaire (post-test). Descriptive statistic and paired t test, one-way analysis of variance, and Pearson and Spearman correlation were used, and a significance level of 5% was set. RESULTS: The majority of participants completing the five-module course were women who earned specialty degrees beyond undergraduate studies and currently worked in PHC (>5 years). Participant performance on the dental knowledge questionnaire after completion of the five-module course improved pre- to post-test. CONCLUSIONS: These data suggest that completion of a distance course on pediatric dentistry can be an effective tool for improving knowledge of pediatric dentistry in PHC professionals.

Perception of parents and caregivers about the need for dental appointments for adolescents from a Brazilian birth cohort.

OBJECTIVE: To investigate the perception of parents or caregivers regarding the need for dental appointments for adolescents aged 12-13 years and associated factors. METHODS: Data from the Pelotas 2004 Birth Cohort were used. The outcome variable was the need for dental appointments for young adolescents perceived by parents or caregivers. Demographic and economic exposure variables were obtained from the first (2004) and sixth general follow-up (2015), respectively. The exposure variables 'previous history of dental pain', 'self-rated oral health', clinical variables and the outcome variable were obtained from the second oral health follow-up (2017). Unadjusted and adjusted multivariate Poisson regression analyses provided prevalence ratios (PR) and respective 95% confidence intervals (CI). RESULTS: At the first oral health follow-up (2009), 1303 five-year-old children were recruited, 996 of whom were reassessed and underwent oral health examinations at 12 and 13 years of age (response rate: 76.4%). The findings showed that 72.4% of parents/caregivers perceived that the adolescents needed dental appointments. No associations were found between the outcome and sociodemographic or economic variables. After adjustments, the outcome remained positively associated with previous history of toothache (PR 1.22; 95% CI 1.14-1.32), self-rated oral health as fair or poor (PR 1.26; 95% CI 1.15-1.39), the presence of dental caries (PR 1.27; 95% CI 1.20-1.38) and severe or disabling malocclusion (PR 1.14; 95% CI 1.05-1.25). CONCLUSIONS: The perception of parents/caregivers regarding the need for dental appointments on the part of their adolescent sons and daughters was associated with oral health problems, and these findings can serve as the basis for creating and improving oral health programmes that seek a better understanding on the part of parents and caregivers regarding the importance of integral care for their adolescent children.

Contextual inequalities in specialized dental public health care in Brazil.

The present study aimed to investigate the contextual inequalities of specialized public dental care (SPDC) in Brazil. The outcome was the trajectory of dental specialized production in municipalities with SPDC (from 2015 to 2017) obtained by group-based trajectory modeling. A Poisson regression model was used to analyze the factors associated with the high trajectory of SPDC production. The inequality indicators for SPDC production were the slope index and the concentration index according to contextual factors. The study included 954 SPDC units distributed across 893 municipalities. Among the municipalities evaluated, 62.9% had a low trajectory of SPDC. Large-sized municipalities had the highest production (IRR = 2.84, 95%CI: 1.94-4.14) and the southern region had the lowest production (IRR = 0.73, 95%CI: 0.58-0.92). Municipalities presenting a very high human development index (HDI) showed the greatest SPDC production (IRR = 3.34, 95%CI: 1.09-10.24), as well as municipalities with the highest tertile of schooling rate (IRR = 1.23, 95%CI: 1.00-1.50). The absolute inequality was 52.1 percentage points for the average monthly wage (p < 0.001), 61.0 percentage points for the HDI (p < 0.001), -22.1 for infant mortality rate (p <0.001), and 14.8 for the schooling rate (p = 0.012). Thus, there are contextual inequalities in the Brazilian SPDC. Higher scores for social indicators were associated with better SPDC performance.

Access to diabetes diagnosis in Brazil based on recent testing and consultation: The Brazilian national health survey, 2013 and 2019.

Background: Screening for undiagnosed diabetes using glucose testing is recommended globally to allow preventive action among those detected. Our aim was to evaluate the access to glucose testing to screen for diabetes in Brazil using self-reported information on recent testing and medical consultation from national surveys of Brazilian adults. Methods: The Pesquisa Nacional de Saúde (PNS) was conducted in 2013 and 2019 drawing probabilistic samples of Brazilians aged 18 years and above. To evaluate glucose testing among those undiagnosed, we excluded those self-reporting a previous diagnosis of diabetes. We then defined recent access to diabetes diagnosis by considering the previous two years and choosing the last blood glucose test and the proximal medical consultation reported. We used Poisson regression with robust variance to assess correlates of access, expressing them with adjusted prevalence ratios (PR) and their 95% confidence intervals. Results: Access to recent glucose testing documented that over 70% reported a recent glycemic test, 71% in 2013, and 77% in 2019. These findings are consistent with a wide recent access to medical consultation, 86% and 89% in 2013 and 2019, respectively. Reporting recent glucose testing and medical consultation may better reflect the actual access to medical diagnostic testing. When analyzing this joint outcome, diagnostic access was still wide, 67% and 74%, respectively. Greater access (p< 0.001) was seen for women (PR=1.16; 1.15-1.17), older individuals (PR=1.25; 1.22-1.28), and those with higher education (PR=1.17; 1.15-1.18), obesity (PR=1.06; 1.05-1.08), and hypertension (PR=1.12; 1.11-1.13). In contrast, lower access (p<0.001) was seen for those declaring being Black (PR=0.97; 0.95-0.99) or of mixed-race (PR=0.97; 0.96-0.98), those residing in rural areas (PR=0.89; 0.87-0.90), and not having a private health insurance plan (PR=0.85; 0.84-0.86). Conclusions: Although access to diagnostic testing for diabetes is high in Brazil, partly due to its universal health system, social inequities are still present, demanding specific actions, particularly in rural areas and among those self-declaring as being Black or mixed-race.

Distance learning course improves primary care dentists' diagnosis and self-efficacy in the management of oral lesions.

Oral cancer represents a public health issue because of its high mortality rate, resulting mainly from diagnostic delays. Insufficient training in oral diagnosis is usually perceived by dentists. Distance learning could be used as an auxiliary tool to bridge that gap. This study evaluated the impact of a distance learning course on oral mucosal lesion diagnosis offered to public healthcare dentists. Participants of an online course answered a pretest/posttest comprising clinical images of 30 clinical cases. Participants were questioned about the diagnosis and informed their decision on the cases (referring the cases to a specialist or managing them themselves), as a parameter of perceived self-efficacy. A total of 442 dentists enrolled in the course. Their pass rate was 97%. Classification of the nature of the lesions, diagnostic hypotheses, sensitivity, and specificity improved by 13.4%, 10.0%, 13.4%, and 6.6%, respectively (p<0.01, Wilcoxon test). Regarding management, there was a 16.6% reduction in the intention to refer cases, while confidence in the diagnosis of benign lesions increased by 40%. A distance learning course may be useful in continuing education actions for primary care dentists, improving their diagnostic abilities and encouraging them in the management of oral lesions. Moreover, this strategy could contribute to disseminating knowledge to remote regions, particularly among primary health care professionals.

Primary health care for 21st century: first results of the new financing model. / Atenção primária à saúde para o século XXI: primeiros resultados do novo modelo de financiamento.

Since 1994, Brazil has been offering Primary Health Care (PHC) services based on the Family Health Strategy. The ESF has achieved important results. During this period, the PHC financing model did not undergo major methodological changes. In this article, the results of the new financing model for PHC approved in a tripartite manner in 2019, Previne Brasil, are laid out, which is composed of (i) weighted capitation, (ii) incentives for specific and strategic actions and, (iii) payment for performance. These first results reveal the increase of more than 50 million people with qualified and unique registration, associated with the record number of more than 52 thousand FH / eAP teams financed by the Ministry of Health, with more than 35 thousand of which (67%) using electronic medical records . In addition, the registration of people and professionals of the Brazilian PHC, together with SISAB, is the largest set of demographic and clinical health data in the world. These advances favor the overcoming of difficulties to achieve greater access, longitudinality and coordination of care, qualifying the Brazilian PHC in search of better health outcomes.

O Brasil, desde 1994, oferta serviços de atenção primária à saúde (APS) a partir da Estratégia Saúde da Família (ESF). A ESF alcançou resultados importantes. Nesse período, o modelo de financiamento da APS não sofreu alterações metodológicas importantes. Neste artigo, descreve-se os resultados do novo modelo de financiamento para APS aprovado de forma tripartite em 2019, o "Previne Brasil", que é composto por (i) capitação ponderada, (ii) incentivos a ações específicas e estratégicas e (iii) pagamento por desempenho. Esses primeiros resultados revelam o incremento de mais de 50 milhões de pessoas com cadastro qualificado e único, associado ao número recorde de mais de 52 mil equipes de Saúde da Família/Equipe de Atenção Primária (EAP) financiadas pelo Ministério da Saúde, sendo mais de 35 mil (67%) com uso de prontuário eletrônico. Além disso, o cadastro das pessoas e dos profissionais da APS brasileira junto ao Sistema de Informação em Atenção Básica (SISAB) se configura como o maior conjunto de dados demográficos e clínicos de saúde do mundo. Esses avanços favorecem a superação das dificuldades para o alcance de maior acesso, longitudinalidade e coordenação do cuidado, qualificando a APS brasileira em busca de melhores resultados em saúde.

Sclerotherapy for vascular malformations in the oral and maxillofacial region: treatment and follow-up of 66 lesions.

PURPOSE: The aim of the present study was to relate the use of 5% monoethanolamine oleate in sclerotherapy for vascular malformations and to suggest a protocol for its use. PATIENTS AND METHODS: A total of 53 patients with 66 vascular malformation lesions were treated with an intralesional injection of 5% monoethanolamine oleate at 0.1 mL/cm of lesion with at least a 15-day interval and as many as 4 applications. A descriptive statistical analysis was performed using SigmaPlot, version 9.0, software. RESULTS: The treatment with the protocol suggested was effective in 65 cases, and in 1 case, surgical intervention was required. CONCLUSIONS: Sclerotherapy was effective in the treatment of vascular malformations, and the method chosen was adequate for lesion resolution without complications.

Impact of the COVID-19 pandemic on prenatal, diabetes and medical appointments in the Brazilian National Health System.

OBJECTIVES: The purpose of this study was to describe the impact of the COVID-19 pandemic on Primary Health Care in Brazil. METHODOLOGY: This retrospective ecological study was carried out using Brazilian municipality data obtained from the information systems of the National Public Health System. The outcomes were medical appointments, prenatal procedures and diabetes care. The exposure variable was the occurrence of the COVID-19 pandemic, based on the first case reported in Brazil. Multilevel mixed-effects negative binomial regression was used to analyze the association between the number of procedures per 10,000 inhabitants and COVID-19. RESULTS: Data from 5,564 Brazilian municipalities were included in the present study. Regarding medical appointments, the largest reduction occasioned by the pandemic occurred in May (IRR = 0.27, 95%CI 0.24 - 0.30). Prenatal procedures were reduced by 65% (IRR = 0.35, 95%CI 0.32 - 0.38), also in May. In addition, diabetes care saw the biggest reductions in April 2020 (IRR = 0.24, 95%CI 0.11 - 0.53) and May 2020 (IRR = 0.19, 95%CI 0.09 - 0.43). From February to December 2020, the pandemic had a significant effect on the total number of procedures evaluated. CONCLUSION: The findings showed a reduction in prenatal procedures, diabetes and medical consultations performed in Brazil's Primary Health Care, following the onset of the COVID-19 pandemic.

COVID-19 Pandemic impact on Brazil's Public Dental System.

The present study aimed to estimate the impact of the COVID-19 pandemic on dental care procedures in the Public Health System in Brazil. A retrospective, ecological study was carried out, comprising 5,564 Brazilian municipalities. The number of dental procedures (per 100,000 inhabitants) performed in the Brazilian Public Health System (SUS) was the outcome. The impact of the pandemic was estimated by comparing the rate of procedures for each month of 2020 with the rates observed in the equivalent months in 2019, considering the period from March to August. Regulatory legislation regarding restrictions on dental care, issued by the state governments of 27 Brazilian federative units, was used for mediation analysis. A 55% reduction was observed in March for all procedures (IRR = 0.45, 95%CI 0.39-0.51), while in the other months, the rate of reduction remained ≥ 88%. The biggest decrease was observed in collective preventive procedures (reduction ≥99%) between April and August. Procedures that were less likely to generate aerosols (tooth extraction and prosthetic) and emergencies showed the smallest reduction. The reduction was not mediated by the restrictions imposed by state governments (p>0.05). The impact of the COVID-19 pandemic was noteworthy in terms of the decrease in the number of dental procedures carried out in the Brazilian Public Dental Service. The lack of access, the delay of elective procedures and the lack of preventive collective procedures could result in an overburdened system, post-Pandemic.

Validation of the Brazilian version of Primary Care Assessment Tool (PCAT) for Oral Health - PCATool Brazil Oral Health for Professionals.

This study verified the internal consistency and reliability of an instrument to evaluate dental services in Primary Health Care (PHC). In order to verify the factor validity, a factor analysis with principal component extraction and varimax orthogonal rotation method was used. Factors with three or more items with factor loadings greater than 0,35 were selected. This instrument's reliability was verified using internal consistency (total item correlation >0,30 and Cronbach alpha = or >0,70)). 562 dentists participated in the study. In the factor analysis, ten factors were kept, which explain 40,95% of the total variation. Regarding the internal consistency, only 3 items presented insufficient correlation. Also on internal consistency, using Cronbach's alpha, the following values of the coefficients were identified: Access (0.55), Continuity (0,74), Care Coordination (0,55), Coordination - Information System (0.21), Comprehensiveness of Services Available (0,91), Comprehensiveness of Services Provided (0,79), Family Orientation (0.66), Community Orientation (0,87), Cultural Competence (0,81). For the success ratio of the scale, all results were higher than 88%, less the "Information Systems" component (21%).

Use of Health Services and Family Health Strategy Households Population Coverage in Brazil.

The objective of this study is to describe the profile of use of primary health care services, estimated by the PNS, of the population living in households registered and not registered with the Famly Health Strategy - FHS, in the years 2013 and 2019. Cross-sectional study carried out using microdata from national health surveys 2013 and 2019. The sample originated from a master sample, consisting of a set of units from selected areas in a register..The variables sex, age, skin color, income, education, self-perceived health, home registered with the FHS, medical care in the last year, type of service you seek when you are ill were selected. The dependent variables were use of health services and use of public health services. The dependent and independent variables were described with the respective confidence interval and adjusted logistic regression was performed for each outcome analyzed. In public health services, lower income, have chronic diseases (arterial hypertension or high cholesterol), be pregnant, and having a bad self-perception of health were associated with used more health services in both periods. Living in registered households was associated with more used health services (public or private). The family health strategy is an important strategy for expanding access equally.

Primary Care Assessment Tool: regional differences based on the National Health Survey from Instituto Brasileiro de Geografia e Estatística. / Primary Care Asssement Tool: diferenças regionais a partir da Pesquisa Nacional de Saúde do Instituto Brasileiro de Geografia e Estatística.

In 2019, unprecedentedly among the official statistical institutes worldwide, the IBGE included a particular module on evaluating primary health care in its central population-based population survey, the National Health Survey (PNS-2019). The survey considered the reduced version of the Primary Care Assessment Tool (PCAT), developed and disseminated by Starfield and Shi, to assess the existence and extent of the structure and process characteristics of PHC services. It is the most significant probabilistic sample using this instrument ever conducted in a single country in the world that interviewed users aged 18 or over (n=9,677). The results of the Brazilian overall PCAT scores (5.9 [5.8; 5.9]) point to significant regional and intraregional contrasts, with the South of the country standing out with the best evaluations of primary care services (overall score = 6.3 [6.2; 6.5]) and the North with the worse (overall score = 5,5 [5,3; 5,7]). There were also statistically significant and more favorable differences between residents of households registered by family health teams, among older adults, and those using health services the most (adults with reported morbidities).

Em 2019, o Instituto Brasileiro de Geografia e Estatística (IBGE) de forma inédita entre os institutos oficiais de estatística em todo o mundo, incluiu um módulo especial sobre avaliação da atenção primária à saúde em seu principal inquérito populacional de base domiciliar, a Pesquisa Nacional de Saúde (PNS). O inquérito considerou a versão reduzida do instrumento Primary Care Assessment Tool (PCAT), desenvolvida e disseminada por Starfield e Shi para avaliar a existência e extensão das características de estrutura e processos dos serviços de atenção primária em saúde. Trata-se da maior amostra probabilística com o uso desse instrumento já realizada em um único país do mundo que entrevistou usuários com 18 anos ou mais (n = 9.677). Os resultados dos escores gerais do PCAT do Brasil (5,9 [5,8; 5,9]) apontam grandes contrastes regionais e intraregionais, com a região Sul do país destacando-se com as melhores avaliações dos serviços de atenção primária (escore geral = 6,3 [6,2; 6,5]) e a região norte, por outro lado, com as menores (escore geral = 5,5 [5,3; 5,7]). Foram também observadas diferenças estatisticamente significantes e mais favoráveis entre os moradores de domicílios cadastrados pelas equipes de saúde da família, entre os mais idosos e entre que mais utilizam os serviços de saúde (adultos com morbidades referidas).

Effect of additional acid etching on bond strength and structural reliability of adhesive systems applied to caries-affected dentin .

PURPOSE: To evaluate the effect of additional acid etching on the microtensile bond strength (µTBS) and Weibull modulus (m) of two adhesive systems applied to caries-affected dentin. MATERIALS AND METHODS: Ninety human molars with coronal carious lesions were sectioned to produce flat coronal surfaces containing caries-affected (CAD) and sound dentin (SD). The teeth were allocated to 6 groups: SB-CT: Control - Single Bond applied according to the manufacturer's instructions; SB+15: Single Bond with additional 35% phosphoric acid etching for 15 s; SB+30: Single Bond with additional etching for 30 s; CF-CT: Control - Clearfil SE Bond applied according to the manufacturer's instructions; CF+15: Clearfil SE Bond with additional 35% phosphoric acid etching for 15 s; CF+30: Clearfil SE Bond with additional etching for 30 s. Composite crowns were incrementally built up. The teeth were sectioned after 24 h in order to produce 2 to 3 slices involving each dentin substrate. The slices were trimmed into hourglass-shaped specimens (n = 30) and tested in tension at a crosshead speed of 1 mm/min. Data were analyzed by three-way ANOVA, Tukey's test (p < 0.05) and Weibull statistics. RESULTS: The µTBS to CAD was lower than to SD, except for SB+30. The additional etching increased the µTBS to CAD. The µTBS to SD increased with CF, but decreased with SB. CAD produced lower values of m with both adhesive systems. SB resulted in lower m in sound dentin than CF. The additional etching did not affect the m. CONCLUSION: The additional etching increases the µTBS to CAD, but not enough to reach the µTBS values obtained in SD. The structural reliability of the bond to CAD is not affected by the additional etching.