Chagas' heart disease: gender differences in myocardial damage assessed by cardiovascular magnetic resonance.

BACKGROUND: Since a male-related higher cardiovascular morbidity and mortality in patients with Chagas' heart disease has been reported, we aimed to investigate gender differences in myocardial damage assessed by cardiovascular magnetic resonance (CMR). METHODS AND RESULTS: Retrospectively, 62 seropositive Chagas' heart disease patients referred to CMR (1.5 T) and with low probability of having significant coronary artery disease were included in this analysis. Amongst both sexes, there was a strong negative correlation between LV ejection fraction and myocardial fibrosis (male r = 0.64, female r = 0.73, both P < 0.001), with males showing significantly greater myocardial fibrosis (P = 0.002) and lower LV ejection fraction (P < 0.001) than females. After adjustment for potential confounders, gender remained associated with myocardial dysfunction, and 53% of the effect was mediated by myocardial fibrosis (P for mediation = 0.004). Also, the transmural pattern was more prevalent among male patients (23.7 vs. 9.9%, P < 0.001) as well as the myocardial heterogeneity or gray zone (2.2 vs. 1.3 g, P = 0.003). CONCLUSIONS: We observed gender-related differences in myocardial damage assessed by CMR in patients with Chagas' heart disease. As myocardial fibrosis and myocardial dysfunction are associated to cardiovascular outcomes, our findings might help to understand the poorer prognosis observed in males in Chagas' disease.

Impact of Chest Pain Protocol with Access to Telemedicine on Implementation of Pharmacoinvasive Strategy in a Private Hospital Network.

BACKGROUND: Brazilian registries have shown a gap between evidence-based therapies and real treatments. We aim to compare the use of the pharmacoinvasive strategy and mortality in patients with ST elevation myocardial infarction (STEMI) transferred pre- and post-chest pain protocol with access to telemedicine (CPPT) in a private hospital network. MATERIALS AND METHODS: A CPPT was implemented in 22 private emergency departments in 2012. Emergency physicians and nurses of all facilities were trained to disseminate the information to comply with a chest pain protocol focusing on reperfusion therapy (pharmacoinvasive strategy) for STEMI. To conduct clinical discussions using telemedicine, a cardiologist from a reference hospital in cardiology (RHC) was available 24 h/day, 7 days/week. Using the database of all consecutive admissions, we compared the data of patients with STEMI transferred to the RHC in 2011 (pre-CPPT) and 2013-2014 (post-CPPT). RESULTS: We included 376 patients (113 pre-CPPT and 263 post-CPPT) with STEMI. All patients admitted in the RHC were transferred from the 22 emergency departments. Comparing pre-CPPT and post-CPPT, we did not find differences regarding age, gender, hypertension, dyslipidemia, diabetes, smoking, previous myocardial infarction, or Killip classification. However, the use of CPPT was associated with a greater use of pharmacoinvasive strategy (55.8% versus 38%; p = 0.002) and a trend toward lower in-hospital mortality (3% versus 8%; p = 0.06). CONCLUSIONS: The implementation of a CPPT was associated with a significant increase in the use of pharmacoinvasive strategy in patients with STEMI and a trend toward reduced in-hospital mortality in a private hospital network.

Diversity and distribution of sandflies (Diptera: Psychodidae: Phlebotominae) in a military area in the state of Amazonas, Brazil.

This study reports the distribution, ecotopes and fauna diversity of sandflies captured in five training bases on a military reserve in Manaus, state of Amazonas (AM). A total of 10,762 specimens were collected, which were distributed among 58 species, with the highest number recorded at Base Instruction 1 (BI1). A higher rate of species richness was found at the Base Instruction Boina Rajada and low levels of diversity associated with a high abundance index with the clear dominance of Lutzomyia umbratilis, Lutzomyia ruii and Lutzomyia anduzei were found at BI1. The abundance of Lu. umbratilis raises the possibility of outbreaks of American cutaneous leishmaniasis by the main vector of the disease in AM.

Cryptococcus gattii VGII isolated from native forest and river in Northern Brazil.

BACKGROUND: Cryptococcosis is a global invasive mycosis associated with significant morbidity and mortality. In the northern region of Brazil, this disease is caused by Cryptococcus neoformans genotype VNI and Cryptococcus gattii genotype VGII. However, few environmental studies have been conducted in this large tropical area. AIMS: This study was performed to isolate, genotype, and determine the frequency of cryptococcal agents in environmental samples near Manaus, Amazonas, Brazil. METHODS: A total of 970 environmental samples (290 from soil, 290 from decaying plants, 5 from insects, 280 from the Negro river, and 105 from small streams within the city of Manaus) were collected and plated on Niger seed agar. In addition, 20 sub-cultures obtained from each positive sample were analyzed by PCR-RFLP (URA5) and PCR for genotyping and determination of mating type. RESULTS: Six samples were positive for isolates from the C. gattii species complex. Of those, three samples were from Adolpho Ducke Forest Reserve and three were from the Negro river. All isolates were C. gattii genotype VGII (mating type MATα). CONCLUSION: Genotype VGII proved to be the most important genotype found in the environmental samples. The genotype VGII has been described as one of the most virulent and less susceptible to antifungals and responsible for important outbreaks. This is the first study to demonstrate isolation of C. gattii (VGII) from the Negro river.

Report of human fascioliasis under different climatic conditions in Brazil / Registro de fasciolose humana em diferentes condições climáticas no Brasil / Registro de fascioliasis humana bajo diferentes condiciones climáticas en Brasil

Introduction: Human fascioliasis is a plant-borne and water-borne infection caused by the trematodes Fasciola hepatica and Fasciola gigantica. It is one of the main neglected tropical diseases, and infections in humans occur via the ingestion of contaminated water and food. This study reviews all the recorded cases of human fascioliasis in Brazil under different climatic conditions in the national territory. Methodology:A survey of human fascioliasis cases in Brazil was carried out using the Google Scholar, Lilacs and PubMed databases. The climatic variables such as temperature, precipitation, moisture and altitude were obtained from the database of the Instituto Nacional de Meteorologia (INMET). Results: Between the years 1958 and 2022, sixty-six cases of human fascioliasis were recorded in places with temperature levels between 22 °C to 33 °C, humidity 78% to 86%, precipitation 90 mm to 167 mm, and at an altitude of 16 to 935 meters above sea level. Conclusion: The parasite's ability to adapt to different climatic conditions is observed in Brazil and the number of cases of human fascioliasis in the national territory may be higher due to underreporting related to the difficulty in diagnosing the infection.

Introdução: A fasciolíase humana é uma infecção de origem vegetal e hídrica, causada pelos trematódeos Fasciola hepatica e Fasciola gigantica. É uma das principais doenças tropicais negligenciadas, e as infecções em humanos ocorrem através da ingestão de água e alimentos contaminados. Este estudo revisa todos os casos registrados de fasciolíase humana no Brasil sob diferentes condições climáticas no território nacional. Metodologia: Um levantamento dos casos de fasciolíase humana no Brasil foi realizado nas bases de dados Google Scholar, Lilacs e PubMed. As variáveis climáticas como temperatura, precipitação, umidade e altitude foram obtidas do banco de dados do Instituto Nacional de Meteorologia (INMET). Resultados: Entre os anos de 1958 e 2022, sessenta e seis casos de fasciolíase humana foram registrados em locais com níveis de temperatura entre 22 °C a 33 °C, umidade de 78% a 86%, precipitação de 90 mm a 167 mm e altitude de 16 a 935 metros acima do nível do mar. Conclusão: A capacidade de adaptação do parasito a diferentes condições climáticas é observada no Brasil e o número de casos de fasciolíase humana no território nacional pode ser maior devido à subnotificação relacionada à dificuldade de diagnóstico da infecção.

Introducción: La fascioliasis humana es una infección de origen vegetal y acuático, causada por los trematodos Fasciola hepatica y Fasciola gigantica. Es una de las principales enfermedades tropicales desatendidas, y las infecciones en humanos ocurren a través de la ingestión de agua y alimentos contaminados. Este estudio revisa todos los casos registrados de fascioliasis humana en Brasil bajo diferentes condiciones climáticas en el territorio nacional. Metodología: Se realizó una encuesta de casos de fascioliasis humana en Brasil utilizando las bases de datos Google Scholar, Lilacs y PubMed. Las variables climáticas como temperatura, precipitación, humedad y altitud se obtuvieron de la base de datos del Instituto Nacional de Meteorología (INMET). Resultados: Entre los años 1958 y 2022 se registraron sesenta y seis casos de fascioliasis humana en lugares con temperatura entre 22 °C a 33 °C, humedad entre 78% y 86%, precipitación entre 90 mm y 167 mm y una altitud de 16 a 935 metros sobre el nivel del mar. Conclusión: La capacidad de adaptación del parásito a diferentes condiciones climáticas se observa en Brasil y el número de casos de fascioliasis humana en el territorio nacional puede ser mayor debido al subregistro relacionado con la dificultad en el diagnóstico de la infección.

REST is a hypoxia-responsive transcriptional repressor.

Cellular exposure to hypoxia results in altered gene expression in a range of physiologic and pathophysiologic states. Discrete cohorts of genes can be either up- or down-regulated in response to hypoxia. While the Hypoxia-Inducible Factor (HIF) is the primary driver of hypoxia-induced adaptive gene expression, less is known about the signalling mechanisms regulating hypoxia-dependent gene repression. Using RNA-seq, we demonstrate that equivalent numbers of genes are induced and repressed in human embryonic kidney (HEK293) cells. We demonstrate that nuclear localization of the Repressor Element 1-Silencing Transcription factor (REST) is induced in hypoxia and that REST is responsible for regulating approximately 20% of the hypoxia-repressed genes. Using chromatin immunoprecipitation assays we demonstrate that REST-dependent gene repression is at least in part mediated by direct binding to the promoters of target genes. Based on these data, we propose that REST is a key mediator of gene repression in hypoxia.

Consulta do Registo de Saúde Eletrónico ­ Análise ética de um caso clínico / Electronic Health Registry Query - Ethical Case Study / Consulta electrónica de registros de salud - Estudio de caso ético

Introducción: La bioética surgió de la necesidad de regular un código de conducta ética que evitara las prácticas médicas abusivas llevadas a cabo durante varios siglos. El Procedimiento Deliberativo (PD), aplicado a la medicina, ayuda a tomar decisiones éticas de forma objetiva (equilibrada, podenrada) y justa. Con la presentación de este caso clínico se pretende, como ejemplo, demostrar la importancia de aplicar el PD en la práctica clínica en medicina general y familiar (MGF). Caso clínico: Un hombre de 58 años que, después de un antígeno prostático específico alterado, fue derivado a una consulta de urología. Un mes después de la biopsia de próstata, asiste a la consulta de MGF con la confianza de que el resultado sería negativo. Sin su autorización, el médico de familia (MF) accedió al registro electrónico de salud y descubrió que el paciente tenía un adenocarcinoma de próstata, aunque no habia sido re-evaluado por Urologia. Se eligió el problema ético más importante y se definió el curso de acción óptimo que cumplía los criterios de legalidad, publicidad y temporalidad. Conclusión: La decisión del médico siempre debe beneficiar el paciente. El PD permite tomar decisiones estructuradas, por lo cual debe aplicarse en el contexto de la MGF frente a problemas éticos

Introduction: Bioethics emerged from the need to implement an ethical code of conduct that would avoid abusive clinical practice carried for centuries. The Deliberative Procedure (DP) applied to medicine helps in making ethical decisions in a well-reasoned and fair manner. This clinical case report is intended to exemplify the importance of applying the deliberative process in clinical practice in general practice/family medicine (GP/FM). Clinical case: Male, 58 years old referenced to urology office visit after positive Prostate-Specific Antigen (PSA) test. A month after prostatic biopsy he went to the medical consultation with his Family Doctor, believing the result was negative. His family doctor assessed his health electronic record without his authorization, and verified the result of the biopsy was a prostatic adenocarcinoma, without new urology appointment. It was elected the most important ethic problem and defined the action curse that accomplish the legality, publicity and temporary criteria. Conclusions: Whatever the physician decides, it should always be for the benefit of the wearer. DP allows structured decision making so it should be applied in the context of GP/FM in the face of ethical problems.

Introdução: A bioética surgiu da necessidade de regulamentar um código de conduta ética que evitasse as práticas médicas abusivas realizadas durante vários séculos. O Procedimento Deliberativo (PD) aplicado à medicina, ajuda na tomada de decisões éticas de forma ponderada e justa. Com a apresentação deste caso clínico pretende-se exemplificar a importância da aplicação do PD na prática clínica em Medicina Geral e Familiar (MGF). Apresentação do caso: Homem de 58 anos que no seguimento de um antígeno específico da próstata (PSA) alterado foi referenciado à consulta de urologia. Um mês após biópsia prostática recorre à consulta de MGF confiante de que o resultado seria negativo. Sem a sua autorização, o Médico de Família (MF) acedeu ao Registo de Saúde Eletrónico e verificou que o doente apresentava um adenocarcinoma da próstata, embora não tivesse ainda consulta de reavaliação de urologia. Foi eleito o problema ético mais importante e definido o curso de ação ótimo que cumpria os critérios de legalidade, publicidade e temporalidade. Conclusões: Qualquer que seja a decisão do médico, deve ser sempre em benefício da pessoa. O PD permite uma tomada de decisão estruturada pelo que deve ser aplicado no contexto de MGF perante a ocorrência de problemas éticos.

Phlebotomine sand flies (Diptera: Psychodidae: Phlebotominae) in urban rainforest fragments, Manaus -- Amazonas State, Brazil.

The non-flooded upland rainforest fragment in the Federal University of Amazonas Campus is considered one of the world's largest urban tropical woodland areas and Brazil's second largest one in an urban setting. It is located in the city of Manaus, State of Amazonas at 03° 04' 34″ S, 59° 57' 30″ W, in an area covering nearly 800 hectares. Forty-one (41) sand fly species belonging to genus Lutzomyia were found attaining a total of 4662 specimens collected. Lutzomyia umbratilis was the dominant species at all heights, followed by Lutzomyia anduzei and Lutzomyia claustrei. The fauna alpha diversity index showed to be 6.4, which is not much lower than that reported for areas of continuous forest in this Amazonian region. This data provides additional evidence on Phlebotomine sand flies found to transmit Leishmania and other trypanosomatids to humans and other animals circulating in this area. This is the first study being reported on sand flies collected in an urban rainforest fragment in Amazonia.

Avaliação dos níveis de pressão sonora emitidos pelo aparelho de ressonância magnética / Study about the consequences of different sound pressure levels emitted by magnetic resonance imaging equipment

RESUMO Objetivo: mensurar o nível de pressão sonora emitido pelo aparelho de ressonância magnética em funcionamento e verificar as sensações auditivas descritas pelos indivíduos submetidos a este exame após a realização do mesmo. Métodos: foi realizada a mensuração do ruído produzido, durante a aquisição das imagens, por meio de um medidor de nível de pressão sonora (decibelímetro) e a aplicação de um questionário com a finalidade de verificar as sensações auditivas apresentadas por estes indivíduos após a realização do exame. Tal procedimento foi aplicado a 60 indivíduos submetidos ao exame de ressonância magnética do crânio. Resultados: o nível de pressão sonora média apresentada durante a realização do exame foi inferior ao nível de intensidade considerado como risco para lesões auditivas. No entanto, sensações como zumbido, ansiedade, plenitude auricular e alívio após o término do exame foram citados pelos indivíduos após a execução do mesmo. Conclusão: é pertinente o uso de protetores auriculares como medida preventiva para o controle do nível de ruído que atinge a cóclea do indivíduo, minimizando desta forma os efeitos físicos e psicossociais decorrentes da exposição ao ruído.

ABSTRACT Purpose: to measure the sound pressure level emitted by the magnetic resonance imaging in operation and check the auditory sensations described by individuals submitted to this examination after it has been carried out. Methods: the measurement of the deep noise was conducted during image formation in this examination, by means of sound pressure level meter (decibel meter) and the application of a questionnaire for the purpose of checking the hearing sensations presented by those individuals after the exam has been carried out. This procedure was applied to sixty individuals submitted to a magnetic resonance imaging of the skull. Results: it was found that the average of sound pressure level presented while the examination was carried out was lower than the level of intensity considered being a risk for auditory damages. However sensations like tinnitus, anxiety, auricular plenitude and relief after the end of the examination were mentioned by the individuals after it had been carried out. Conclusion: the use of hearing protectors is relevant as a preventive measure for controlling the level of noise that affects the individual's cochlea, thus minimizing the physical and psycho-social effects resulting from noise exposure.

[First record of Lutzomyia (Trichopygomyia) conviti Ramirez Perez, Martins & Ramirez (Diptera: Psychodidae) from Brazil]. / Primeiro registro de Lutzomyia (Trichopygomyia) conviti Ramirez Perez, Martins & Ramirez (Diptera: Psychodidae) no Brasil.

The presence of Lutzomyia conviti Ramirez Perez, Martins & Ramirez, previously found only in Venezuela and Colombia, is recorded for the first time in Brazil. Lutzomyia conviti is now added to the 229 species of Lutzomyia already registered in Brazil and to the 44 identified in São Gabriel da Cachoeira, Amazonas state. Both sexes of L. conviti were collected in 2007 and 2008 with CDC light traps in an environment of primary vegetation represented by firm land forest. The distribution range of the species is cited and discussed.

Equivalence class formation: a method for teaching statistical interactions.

Many students struggle with statistical concepts such as interaction. In an experimental group, participants took a paper-and-pencil test and then were given training to establish equivalent classes containing four different statistical interactions. All participants formed the equivalence classes and showed maintenance when probes contained novel negative exemplars. Thereafter, participants took a second paper-and-pencil test. Participants in the control group received two versions of the paper-and-pencil test without equivalence-based instruction. All participants in the experimental group showed increased paper-and-pencil test scores after forming the interaction-indicative equivalence classes. Class-indicative responding also generalized to novel exemplars and the novel question format used in the paper-and-pencil test. Test scores did not change with repetition for control group participants. Implications for behavioral diagnostics and teaching technology are discussed.

Comparação do equilíbrio, depressão e cognição entre idosas institucionalizadas e não-institucionalizadas / Comparison of balance, depression, and cognition in institutionalized and non-institutionalized elderly individuals

OBJETIVO: comparar o equilíbrio funcional, o risco de quedas, a tendência à depressão e preservação da cognição entre idosas institucionalizadas e não-institucionalizadas. MÉTODO: participaram deste estudo 56 idosas, sendo o grupo de estudo composto por 28 residentes na Instituição Lar do Ancião Cidade Ozanan e o grupo controle composto por 28 idosas da comunidade. Todas foram submetidas a avaliações como o Mini Exame do Estado Mental, Escala de Depressão Geriátrica e Escala do Equilíbrio de Berg. As idosas que relataram o sintoma de tontura responderam, também, ao Questionário de Handicap para Tontura. Foram utilizados os testes Qui-Quadrado e Exato de Fisher para a análise dos dados, considerando um nível de significância de 5% em todas as análises. RESULTADOS: a média de idade do grupo de idosas institucionalizadas foi superior à média das não-institucionalizadas e os resultados do Mini Exame do Estado Mental indicaram uma menor preservação dos aspectos cognitivos no primeiro grupo. Oito idosas da comunidade relataram ter sua qualidade de vida alterada devido à tontura, e a média encontrada no Questionário de Handicap para Tontura neste grupo foi superior a encontrada nas idosas institucionalizadas. Na avaliação do equilíbrio funcional, as idosas institucionalizadas tiveram uma pontuação média inferior à das idosas da comunidade e apresentaram maior tendência para quedas e risco à depressão. CONCLUSÕES: as idosas institucionalizadas apresentaram resultados piores que as idosas da comunidade nos aspectos cognitivos, na avaliação funcional do equilíbrio e verificação de tendência a quedas, e na frequência de sintomas depressivos.

ABSTRACT PURPOSE: to compare functional balance, risk of falls, tendency to depression and cognition preservation among institutionalized and non-institutionalized seniors. METHOD: the study was carried out with 56 seniors, 28 composed the study group residents in Lar do Ancião Cidade Ozanan and 28 in a control group. All were appraised with the Mini-Mental Status Examination, Geriatric Depression Scale and Berg Balance Scale. The seniors that presented dizziness as a symptom answered the Dizziness Handicap Inventory as well. For statistic analysis the Chi-square and Fisher Exact Tests were used considering a significance level of 5% in all analyses. RESULTS: the age average of the institutionalized seniors' group was higher than the average of those non-institutionalized and the results of Mini-Mental Status Examination indicated a smaller preservation of the cognitive aspects among the institutionalized seniors. Eight non-institutionalized seniors presented dizziness as a complaint, and the average found in Dizziness Handicap Inventory of this group was higher than the one found in the institutionalized group. The functional balance evaluation revealed that the institutionalized seniors had a lower medium score than the non-institutionalized ones, and they also presented a larger tendency to falls and to depression. CONCLUSIONS: the institutionalized seniors presented worse results in the evaluations of the cognitive aspects, functional balance and tendency to falls, and also in the frequency of symptoms of depression.

Diversity and distribution of sandflies (Diptera: Psychodidae: Phlebotominae) in a military area in the state of Amazonas, Brazil

This study reports the distribution, ecotopes and fauna diversity of sandflies captured in five training bases on a military reserve in Manaus, state of Amazonas (AM). A total of 10,762 specimens were collected, which were distributed among 58 species, with the highest number recorded at Base Instruction 1 (BI1). A higher rate of species richness was found at the Base Instruction Boina Rajada and low levels of diversity associated with a high abundance index with the clear dominance of Lutzomyia umbratilis, Lutzomyia ruii and Lutzomyia anduzei were found at BI1. The abundance of Lu. umbratilis raises the possibility of outbreaks of American cutaneous leishmaniasis by the main vector of the disease in AM.

Primeiro registro de Lutzomyia (Trichopygomyia) conviti Ramirez Perez, Martins & Ramirez (Diptera: Psychodidae) no Brasil / First record of Lutzomyia (Trichopygomyia) conviti Ramirez Perez, Martins & Ramirez (Diptera: Psychodidae) from Brazil

The presence of Lutzomyia conviti Ramirez Perez, Martins & Ramirez, previously found only in Venezuela and Colombia, is recorded for the first time in Brazil. Lutzomyia conviti is now added to the 229 species of Lutzomyia already registered in Brazil and to the 44 identified in São Gabriel da Cachoeira, Amazonas state. Both sexes of L. conviti were collected in 2007 and 2008 with CDC light traps in an environment of primary vegetation represented by firm land forest. The distribution range of the species is cited and discussed.

Oral hygiene practices, dental service use and oral health self-perception of schoolchildren from a rural zone in the Brazilian Northeast region / Práticas de higiene bucal, uso de serviço odontológico e autopercepção de saúde bucal de escolares da zona rural de Caruaru, PE, Brasil

Purpose: To evaluate the oral hygiene practices, use of dental services and self-perception of oral health of school children from the rural areas of the city of Caruaru, PE, in the Northeast region of Brazil. Methods: An exploratory cross-sectional study was carried out using interviews with structured questionnaires aimed at students aged between 6 and 12 years (n=150). Demographic and socio-economic data on oral hygiene practices, the use of dental services and self-perception of oral health were collected and analyzed using descriptive and inferential statistics (chi-square and Fisher's exact tests). Results: Most of the students cleaned their teeth (82.0%) with toothpaste (98.0%), a toothbrush available at the market (93.2%) and dental floss (26.4%). All students (150) had a toothbrush, the majority (86.7%) for individual use, and performed three or more daily brushings (56.4%). A significant portion had visited the dentist (72.7%) due to the need for treatment (57.8%) and toothache (33.0%). Among those who had never been to the dentist, fear (36.6%) was the main reason. The majority (56.0%) considered their teeth to be in good condition. Conclusion: Despite the low socio-economic status of the evaluated population, changes in oral hygiene practices and the demand for dental care were observed.

Objetivo: Avaliar as práticas de higiene bucal, o uso de serviços odontológico e a autopercepção de saúde bucal de escolares da zona rural de Caruaru, PE, Brasil. Metodologia: Através de estudo transversal exploratório usando entrevistas com formulário estruturado dirigidas a escolares na faixa etária de seis a 12 anos (n=150), foram coletados dados demográficos e sócio-econômicos relativos as práticas de higiene bucal, uso de serviços odontológico e autopercepção de saúde bucal, analisados por meio de estatística descritiva e inferencial (Qui-quadrado e Exato de Fisher). Resultados: A maioria dos escolares limpava os dentes (82,0%) com dentifrício (98,0%), escova dentária disponível no mercado (93,2%) e fio dental (26,4%). Todos os escolares (150) tinham escova, a maioria (86,7%) de uso individual, e realizavam três ou mais escovações diárias (56,4%). Uma parcela significativa visitou o dentista (72,7%) devido à necessidade de tratamento (57,8%) e de dor de dente (33,0%). Dentre os que nunca foram ao dentista, o medo (36,6%) foi o principal motivo. A maioria (56,0%) avaliou que os seus dentes estão em bom estado. Conclusão: A maior parte dos escolares possuía boas práticas de higiene bucal, já fez uso do serviço odontológico para necessidades curativas e relatou boa percepção sobre sua saúde bucal.