Impacto do uso de dispositivos eletrônicos na visão das crianças em idade escolar / Impacto del uso de dispositivos electrónicos en la visión de los niños en edad escolar / Impact of the use of electronic devices on the view of children at school age

Objetivo:conhecer o impacto das telas sobre a acuidade visual das crianças em idade de quatroa 12 anos, na perspectiva dos pais e responsáveis. Método:estudo quantitativo, descritivo, com 176 participantes. O convite ocorreu por mensagens enviadas nas redes sociais e a coleta através de um questionário online, entre fevereiro e abril de 2021. A análise ocorreu pelas frequências simples dos dados. Resultados: 50,57% tiveram o primeiro contato com as telas, antes de dois anos de idade. As queixas mais frequentes após uso de telas são: dores de cabeça, irritação visual, olhos ressecados e lacrimejando, visão turva e tonturas. 20,45% das crianças possuem dificuldades com de visão em grandes distâncias e 60,80% das crianças, já realizaram avaliação oftalmológica. Conclusão: há um crescente número de crianças expostas precocemente e durante prolongados períodos, aos aparelhos eletrônicos de forma demasiada.

Objective:to know the impact of screens on the visual acuity of children aged 4 to 12 years, from the perspective of parents and guardians. Method:quantitative, descriptive study with 176 participants. The invitation took place through messages sent on social networks and collection by an online questionnaire, between February and April 2021. The analysis was carried out by the simple frequency of the data. Results:50,57% had their first contact with screens, before the age of two. The most frequent complaints after using screens are: headaches, visual irritation, dry and watery eyes, blurred vision and dizziness. 20,45% of children have vision difficulties at great distances and 60,80% of the children have already undergone an ophthalmological evaluation. Conclusion:there is an increasing number of children exposed early and for prolonged periods to electronic devices too much.

Objetivo: conocer el impacto de las pantallas en la agudeza visual de niños de 4 a 12 años, desde la perspectiva de padres y tutores. Método:estudio cuantitativo, descriptivo, con 176 participantes. La invitación se realizó a través de mensajes enviados en redes sociales y recogida mediante un cuestionario en línea, entre febrero y abril de 2021. El análisis se realizó por la frecuencia simple de los datos. Resultados:el 50,57% tuvo su primer contacto con las pantallas, antes de los dos años. Las quejas más frecuentestras el uso de pantallas son: dolores de cabeza, irritación visual, ojos secos y llorosos, visión borrosa y mareos. El 20,45% de los niños tienen dificultades de visión a grandes distancias y el 60,80% de los niños ya se han realizado una evaluación oftalmológica.Conclusión:hay un número creciente de niños expuestos demasiado tempranamente y durante periodos prolongados a los dispositivos electrónicos.

Clinical and sociodemographic factors associated with time spent sitting in military police / Factores clínicos y sociodemográficos asociados al tiempo de permanencia en la policía militar / Fatores clínicos e sociodemográficos associados ao tempo gasto sentado em policiais militares

ABSTRACT Objective: To verify the association between clinical and sociodemographic factors and time spent sitting in military police. Method: This is a cross-sectional study, with 432 military police officers from Eastern Regional Policing Command units of the Military Police of Bahia de Feira de Santana. Data collection took place from August to December 2022 through Google Forms using the International Physical Activity Questionnaire. Results: Men predominated (82.35%), race/color was black (87.04%), the head of the family had completed higher education (47.69%) and police officers with a partner (81.94%). The risk of time spent sitting ≥ 180 minutes per day was lower in males (IRR < 1). Increasing age was associated with a lower risk of time spent sitting ≥ 180 minutes per day (IRR < 1). Conclusion: Male police officers with more years of experience were less exposed to sedentary behavior. Specific interventions and health policies aimed at combating sedentary behavior become relevant, aiming to promote health and prevent diseases.

RESUMEN Objetivo: Verificar la asociación entre factores clínicos y sociodemográficos y el tiempo de permanencia en la policía militar. Método: Estudio transversal, con 432 policías militares de unidades del Comando de Policía Regional Este de la Policía Militar de Bahía de Feira de Santana. La recolección de datos se realizó de agosto a diciembre de 2022 a través de Google Forms utilizando el Cuestionario Internacional de Actividad Física. Resultados: Predominaron los hombres (82,35%), la raza/color fue negra (87,04%), el jefe de familia tenía estudios superiores (47,69%) y los policías con pareja (81,94%). El riesgo de pasar tiempo sentado ≥ 180 minutos por día fue menor en los hombres (IRR < 1). El aumento de la edad se asoció con un menor riesgo de pasar tiempo sentado ≥ 180 minutos por día (IRR < 1). Conclusión: Los policías varones con más años de experiencia estuvieron menos expuestos al comportamiento sedentario. Cobran relevancia intervenciones y políticas de salud específicas dirigidas a combatir el sedentarismo, con el objetivo de promover la salud y prevenir enfermedades.

RESUMO Objetivo: Verificar a associação entre fatores clínicos e sociodemográficos e o tempo gasto sentado em policiais militares. Método: Estudo transversal, com 432 policiais militares das unidades do Comando de Policiamento Regional Leste da Polícia Militar da Bahia de Feira de Santana. A coleta de dados ocorreu de agosto a dezembro de 2022 através do Google Forms constando o Questionário Internacional de Atividade Física. Resultados: Predominaram homens (82,35%), raça/cor negra (87,04%), nível de escolaridade do chefe da família superior completo (47,69%) e policiais com companheiro(a) (81,94%). O risco do tempo gasto sentado ≥ 180 minutos por dia foi menor no sexo masculino (IRR < 1). O aumento da idade foi associado a menor risco de tempo gasto sentado ≥ 180 minutos por dia (IRR < 1). Conclusão: Policiais do sexo masculino e com mais anos de vida estavam menos expostos ao comportamento sedentário. Intervenções específicas e políticas de saúde voltadas ao combate do comportamento sedentário se tornam relevantes, visando à promoção da saúde e prevenção de agravos.

Effect of whitening toothpastes and activated charcoal powder on enamel wear and surface roughness

Abstract This study aimed to evaluate surface roughness (Sa), roughness profile (Rv), and enamel wear after brushing with different whitening toothpastes and charcoal powders. Sixty (n = 10) bovine enamel blocks (6 × 6 × 3 mm) were randomly distributed into six groups according to toothpaste type: regular toothpaste (CONT), toothpaste containing 2% hydrogen peroxide (HP), toothpaste containing titanium dioxide (TiO2), toothpaste containing charcoal (COAL), toothpaste containing charcoal and TiO2 (COAL+TiO2), and activated charcoal powder (COAL_PWD). Each block was subjected to 30,000 reciprocal cycles at a 1:3 proportion slurry. After brushing, the blocks were analyzed using an optical profilometer to determine Sa, Rv, and enamel wear. In addition, representative 3D images of each group and wear profiles were obtained. Sa was analyzed using generalized linear models followed by Bonferroni correction, whereas Rv was analyzed using one-way analysis of variance. After brushing, COAL and COAL+TiO2 showed higher Sa values than COAL_PWD. However, no significant difference was observed in Sa between whitening toothpaste and COAL_PWD, and CONT (p > 0.05). In addition, no differences were observed among the groups in Rv (p > 0.05). Conversely, enamel wear was higher for TiO2, COAL, COAL+TiO2, and COAL_PWD than for CONT. CONT showed the least enamel wear, whereas HP showed intermediate values. Representative 3D images and line profiles showed lower step-height and lower mean surface losses for the CONT and HP groups than for the other groups. Whitening toothpastes and COAL_PWD did not increase Sa or Rv compared with CONT, while CONT demonstrated lower enamel wear.

Oral metastasis intraosseous mimicking periapical lesion: a case report / Metástase oral intraóssea mimetizando lesão periapical: um relato de caso

ABSTRACT Jaw metastasis can be mistaken for inflammatory or infectious diseases. Then, they should be considered in the differential diagnosis of unknown jaw lesions. Study reported here involved metastasis of breast cancer in the mandible of a 45-year-old woman. The most important differential diagnostic was a reactive lesion in an unusual periapical location associated with a nonvital tooth. However, given patient's medical history and because paresthesia and pain were observed a few days after pulpectomy, metastasis of breast cancer could not be ruled out. When bone scintigraphy suggested the metastasis of a malignant bone tumor, incisional biopsy was performed. Histopathologic examination and immunohistochemical reaction confirmed the diagnosis of metastasis of breastcancer, and chemotherapy was thus performed as well. Unfortunately, patient died 2 years after diagnosis. Dentists as well as general physicians should therefore consider presence of oral metastasis in cases involving atypical symptoms, especially in patients with known malignant disease.

RESUMO As metástases mandibulares podem ser confundidas com doenças inflamatórias ou infecciosas. Sendo assim, elas devem ser consideradas no diagnóstico diferencial de lesões desconhecidas na mandíbula. Esse relato de caso envolveu metástase de câncer de mama na mandíbula de uma mulher de 45 anos. O diagnóstico diferencial mais importante foi uma lesão reacional, em uma localização periapical incomum, associada a um dente não vital. No entanto, dado o histórico médico da paciente e uma vez que parestesia e dor foram observadas alguns dias após a realização da pulpectomia, a metástase de câncer de mama não foi descartada. Quando a cintilografia óssea sugeriu a metástase de um tumor ósseo maligno, uma biópsia incisional foi realizada. O exame histopatológico e a reação imunohistoquímica confirmaram o diagnóstico de metástase do câncer de mama, e a quimioterapia foi então realizada. Infelizmente, a paciente morreu 2 anos após o diagnóstico. Portanto, dentistas e médicos generalistas devem considerar a presença demetástases oral em casos que envolvam sintomas atípicos, principalmente em pacientes com doença maligna conhecida.

How do medical students defend themselves against anxiety?

OBJETIVO: A formação médica é geradora de ansiedade, tornando os estudantes de medicina vulneráveis a transtornos psiquiátricos, em particular os transtornos de ansiedade. Para lidar com a ansiedade o estudante de medicina lança mão de vários mecanismos de defesa. Objetivou-se avaliar a associação entre a presença de sintomas de ansiedade e o estilo defensivo em alunos de uma escola médica pública federal. MÉTODO: Trata-se de um estudo observacional transversal, de uma amostra de estudantes de medicina, do primeiro e sexto ano, devidamente matriculados e frequentando regularmente as aulas. No presente estudo utilizou-se um questionário sócio-demográfico, o Inventário Beck de Ansiedade e o questionário de estilo defensivo (DSQ-40). RESULTADOS: Responderam aos questionários 232 alunos, 110 do primeiro ano e 122 do sexto, representando 67,4% do total de alunos matriculados. Em relação aos mecanismos de defesa na amostra, as analises multivariadas mostraram que mecanismos de defesa neuróticos e imaturos estavam associados à presença de ansiedade (p < 0,001). CONCLUSÃO: Os dados encontrados no estudo apontam que alunos do curso médico que apresentaram sintomas de ansiedade utilizaram significativamente mais mecanismos de defesa neurótiocos e imaturos do que os que não tinham esses sintomas. Planos de prevenção, atenção e estratégias de apoio psicológico deveriam ser desenvolvidos para esse grupo, pois os mecanismos de defesa não parecem ser adaptativos em estudantes de medicina enfrentando ansiedade.(AU)

OBJECTIVE: Medical training is a generator of anxiety, making medical students vulnerable to psychiatric disorders. To deal with anxiety, medical students make use of several defense mechanisms. The aim was to assess the association between the presence of symptoms of anxiety and the defense style in students of a federal public medical school. METHOD: This is a cross-section observational study, of a sample of medical students, of the first and sixth years, duly enrolled and regularly attending classes. For the present study a socio-demographic questionnaire, the Beck Anxiety Inventory and the Defense Style Questionnaire (DSQ-40) were used. RESULTS: The questionnaires were answered by 232 students, 110 from the first year and 122 of the sixth year, representing 67.4% of the total amount of students. In relation to the defense mechanisms in the sample, the multivariate analysis showed that neurotic and immature defense mechanisms were associated with the presence of anxiety (p<0.001). CONCLUSION: The data found in this study indicate that medical students who showed symptoms of anxiety, used more neurotic or immature defense mechanisms than students who did not present these symptoms. Prevention and attention plans, as well as psychological support strategies should be developed for this group, because defense mechanisms do not appear to be adaptive in medical students experiencing anxiety.(AU)

Stress and coping in a sample of medical students in Brazil

Background Medical training is a stressing situation, making medical students vulnerable to psychiatric disorders, such as depression and anxiety. Objective The study aimed to assess the prevalence of stress and coping in students of a public medical school in Brazil, comparing the groups from the first and sixth years of training. Methods Through a cross-sectional, observational study, a sample of 232 first and sixth-year regularly registered medical students has been evaluated. Students filled a socio-demographic questionnaire, the Lipp Inventory of Stress Symptoms (ISSL), and the Coping Strategies Inventory (CSI). Results From the total sample of 232 students, 110 were first-year students and 122 sixth-year students. Stress symptoms were significantly higher in first-year students (49.1%) than in the sixth-year group (33.6%; p = 0.018). Variables significantly associated with stress were: year of the training (1st year > 6th year), income (lower > higher income), satisfaction with the training (dissatisfied > satisfied) and the use of escape/avoidance copying strategy (positive association). Discussion Considering the higher stress symptoms among first-year medical students and the positive association of the escape/avoidance copying strategy with stress, strategies must be developed to enable students starting medical school to be better at coping with this stressful situations.

First- and last-year medical students: is there a difference in the prevalence and intensity of anxiety and depressive symptoms?

Objective: Medical training is considered a significant stress factor. We sought to assess the prevalence and intensity of anxiety and depressive symptoms in medical students and compare samples of first-year and sixth-year students. Method: This was a cross-sectional study of first- and sixth-year medical students who attended classes regularly. The study instruments were a sociodemographic questionnaire, the Beck Depression Inventory (BDI), and the Beck Anxiety Inventory (BAI). Results: A total of 232 students (110 first-year, 122 sixth-year) completed the questionnaires, for a response rate of 67.4%. Overall 50.4% of respondents were male (56.4% of first-year and 45.1% of sixth-year students). Anxiety symptoms were reported by 30.8% of first-year students and 9.4% of sixth-year students (p < 0.001). Female students were more affected by anxiety. There were no significant between-group differences in depressive symptoms. Conclusion: A higher prevalence of anxiety symptoms was found in first-year medical students as compared with sixth-year students. Strategies should be developed to help medical students, particularly female students, manage these symptoms at the beginning of their medical training. .

Associação entre megacólon chagásico e adenocarcinoma gástrico em uma mulher idosa / Association between chagasic megacolon and gastric adenocarcinoma in an elderly woman

O objetivo deste relato foi apresentar o caso de uma paciente com megacólon chagásico perfurado associado a colite isquêmica, que evoluiu para peritonite fecal aguda. A paciente era uma mulherbranca, 82 anos, com cianose, anasarca, melena, dor, distensão abdominal e sorologia positiva para doença de Chagas. Seu estado evoluiu para o óbito e a autópsia revelou megacólon chagásico com perfuração e peritonite aguda fecaloide purulenta, sendo esta última a causa imediata do óbito. Esteé, provavelmente, um dos poucos relatos de colite isquêmica, megacólon chagásico perfurado e peritonite fecal aguda associada a adenocarcinoma gástrico não diagnosticado antes do óbito.