Evaluamos en conjunto con profesionales de los servicios, los desafíos para la implementación del modelo biosicosocial en los centros especializados en rehabilitación. Por medio de la articulación de la Evaluación de Cuarta Generación y Rueda de Conversación (Método Paideia), abordamos los modelos implementados de asistencia a la persona con discapacidad, partiendo de las siguientes cuestiones: trabajar en rehabilitación; historial médico y evaluación; atención compartida y calificación del alta. Del contenido de las ruedas surgieron tres categorías empíricas: el proceso de trabajo en rehabilitación; el proceso en red; el modelo de cuidado. La identificación de obstáculos y facilitadores podrá favorecer la plena implementación del modelo biosicosocial en la atención a las personas con discapacidad, generando subsidios para el avance hacia la integralidad del cuidado a las personas con discapacidad representado en este modelo.

We assessed challenges in implementing the biopsychosocial model in specialized rehabilitation centers together with the professionals working in these services. Using fourth generation assessment and conversation circles (the Paideia method), we explored models of care for people with disabilities focusing on the following issues: working in rehabilitation; health records and evaluation; shared appointments; and improving discharge. Three empirical categories emerged from the conversation circles: rehabilitation work processes; the network-based approach; and the care model. The identification of constraints and enabling factors can help promote the effective implementation of the biopsychosocial model, generating important insights to help drive progress towards the delivery of comprehensive care to people with disabilities represented in this model.

Avaliamos, em conjunto com profissionais dos serviços, os desafios à implementação do modelo biopsicossocial nos Centros Especializados em Reabilitação. Por meio da articulação da Avaliação de Quarta Geração e Roda de Conversa (Método Paideia), abordamos os modelos implementados de assistência à pessoa com deficiência, partindo das seguintes questões: trabalhar em reabilitação; prontuário e avaliação; atendimento compartilhado e qualificação da alta. Do conteúdo das rodas emergiram três categorias empíricas: o processo de trabalho em reabilitação; o trabalho em rede; o modelo de cuidado. A identificação de entraves e facilitadores poderá favorecer a plena implementação do modelo biopsicossocial na atenção às pessoas com deficiência, gerando subsídios para o avanço rumo à integralidade do cuidado às pessoas com deficiência representado neste modelo.

ABSTRACT: Infectious enteritis is highly prevalent among dogs worldwide and, in some cases, it can be fatal. This study describes the clinical and laboratorial findings of single and mixed infections associated with severe enteritis in 76 dogs from Southern Brazil. Intestinal segments and/or fecal samples were subjected to histopathology and molecular detection of DNA viruses, bacteria and protozoa. Severe intestinal lesions were observed in most cases. Single infections were detected in 52.6% of cases, double (36.8%) and triple (10.5%) infections were also identified. Carnivore protoparvovirus 2 (CPV-2) was the most frequent agent in single infections (36.8%). Coinfection by CPV-2 and Giardia spp. was the most common in dual infections (19.7%), followed by CPV-2 and Cryptosporidium spp. (10.5%). The most frequent triple infection was CPV-2, Giardia sp. and Cryptosporidium spp. (6.6%). Our results shown that single and mixed infections are associated with severe enteritis in dogs in southern Brazil, mainly involving CPV-2 and Giardia sp.

RESUMO: Enterites infecciosas são altamente prevalentes entre cães em todo o mundo e, em alguns casos, podem ser fatais. Este estudo descreve os achados clínicos e laboratoriais de infecções simples e mistas associadas a enterites graves em 76 cães do sul do Brasil. Segmentos intestinais e/ou fezes foram submetidos à análise patológica e detecção molecular de vírus de genoma DNA, bactérias e protozoários. Lesões intestinais severas foram observadas na maioria dos casos. Infecções únicas foram detectadas em 52,6% dos casos, e infecções duplas (36,8%) e triplas (10,5%) também foram identificadas. O Protoparvovírus carnívoro 2 (CPV-2) foi o agente mais frequente nas infecções simples (36,8% do total). Coinfecção por CPV-2 e Giardia sp. foi a mais comum em infecções duplas (19,7%), seguido por CPV-2 e Cryptosporidium spp. (10,5%). A tripla infecção mais frequente foi CPV-2, Giardia spp. e Cryptosporidium spp. (6,6%). Nossos resultados demostraram que infecções simples e mistas estão associadas a enterites graves em cães no sul do Brasil, envolvendo principalmente CPV-2 e Giardia sp.

Policy for LGBT Adolescents in Minas Gerais’ Socio-educational System? Notes on an Ongoing Dispute analyzes the construction of the state policy for care and treatment of LGBT people in Minas Gerais, Brazil, and its application in the socio-educational units in the state. The research was based on documental analysis and semi-structured interviews. We found that the state’s socio-educational system seeks to implement institutional standards produced by the Statute of the Child and Adolescent (ECA) and the National System for Socio-Educational Care (Sinase). Nonetheless, the values that it intends to follow seem disconnected from the practices historically established in the internment units, prevailing punitive perspectives. Formally, the socio-educational system in Minas Gerais follows gender policies, but these are far from the routines developed in the units.

Este artigo analisa a construção da Política Estadual de Atendimento e Tratamento da pessoa LGBT em Minas Gerais e sua aplicação nas unidades socioeducativas do estado. A pesquisa se baseou em análise documental e entrevistas semiestruturadas. Verificamos que o sistema socioeducativo mineiro busca implementar padrões institucionais produzidos pelo Estatuto da Criança e do Adolescente (ECA) e pelo Sistema Nacional de Atendimento Socioeducativo (Sinase). Contudo, os valores que pretende seguir são desconexos em relação às práticas historicamente estabelecidas nas unidades de internação, imperando perspectivas e dinâmicas punitivistas. Formalmente, o socioeducativo mineiro segue políticas de gênero, mas elas encontram-se distantes das rotinas desenvolvidas nas unidades.

Abstract COVID-19 pandemic represented a worldwide major challenge in different areas, and efforts undertaken by the scientific community led to the understanding of some of the genetic determinants that influence the different COVID-19 outcomes. In this paper, we review the studies about the role of human genetics in COVID-19 severity and how Brazilian studies also contributed to those findings. Rare variants in genes related to Inborn Errors of Immunity (IEI) in the type I interferons pathway, and its phenocopies, have been described as being causative of severe outcomes. IEI and its phenocopies are present in Brazil, not only in COVID-19 patients, but also in autoimmune conditions and severe reactions to yellow fever vaccine. In addition, studies focusing on common variants and GWAS studies encompassing worldwide patients have found several loci associated with COVID-19 severity. A GWAS study including only Brazilian COVID-19 patients identified a new locus 1q32.1 associated with COVID-19 severity. Thus, more comprehensive studies considering the Brazilian genomic diversity should be performed, since they can help to reveal not only what are the genetic determinants that contribute to the different outcomes for COVID-19 in the Brazilian population, but in the understanding of human genetics in different health conditions.

Abstract The educational inclusion of students with autism and/or intellectual disabilities in regular education has highlighted the urgency of initial and continuing education programs with evidence-based educational practices. The objective was to evaluate the structure of a remote training process for the elaboration, application and evaluation of a behavioral intervention in the inclusive educational perspective and, complementarily, a specific objective was to characterize the social attitudes of educational agents participating in the training. The training took place in two formats. In the first, all material was made available in a shared folder and in the second, in a Virtual Learning Environment (VLE). In both formats, the structure had a theoretical and practical part, by reading and carrying out exercises and discussions. In the practical part, participants had the opportunity to work with families and students with autism and/or intellectual disability to identify the needs and priorities of the family for the collaborative elaboration of an intervention plan (systematization of practices), implementation and analysis of practices. For the characterization of the sample, personal information, previous experiences, familiarity with technological tools, and knowledge about the theoretical concepts of Behavior Analysis were collected. A characterization of social attitudes towards inclusion was carried out and the social validity of participants regarding training was analyzed. The results of the training identified correlations between the level of social attitudes and engagement in the practical activities delivered, in addition to the relationship between the drop in the number of participants, the fulfillment of tasks and difficulties in contacting the family. The study discussed strategies that aim at possibilities of scaling continuing education in a systematic and scientific way in this area of professional activity.

Resumen La inclusión educativa de estudiantes con autismo y/o discapacidad intelectual en la educación regular, en aulas regulares, ha puesto de relieve la urgencia de programas de educación inicial y continua en prácticas educativas basadas en evidencia. El objetivo de este estudio fue evaluar la estructura de un proceso de formación a distancia para la elaboración, aplicación y evaluación de una intervención conductual en la perspectiva educativa inclusiva y, de forma complementaria, el objetivo específico fue caracterizar las actitudes sociales de los agentes educativos participantes en la formación. La capacitación se llevó a cabo en dos formatos. En el primer, todo el material estaba disponible en una carpeta compartida y, en el segundo, en un entorno virtual de aprendizaje (EVA). En los dos formatos, la estructura tuvo una parte teórica y práctica, mediante la lectura de textos, la realización de ejercicios y discusiones. En la parte práctica, los participantes tuvieron la oportunidad de trabajar con las familias y los alumnos con autismo y/o discapacidad intelectual con el fin de identificar las necesidades y prioridades de la familia para la elaboración colaborativa de un plan de intervención (sistematización de prácticas), su implementación y el análisis de prácticas. Para la caracterización de la muestra, se planteó información personal, experiencias previas, familiaridad con herramientas tecnológicas, conocimiento sobre los conceptos teóricos del análisis de comportamiento. Se realizó una caracterización de las actitudes sociales hacia la inclusión y se analizó la validez social de los participantes respecto a la formación. Los resultados de la capacitación identificaron correlaciones entre el nivel de actitudes sociales y el compromiso en las actividades prácticas impartidas, además de la relación entre la disminución del número de participantes, el cumplimiento de las tareas y las dificultades de contacto con la familia. Este estudio discutió estrategias que apuntan a posibilidades de escalar la formación docente de forma sistemática y científica en esta área de actuación profesional.

Resumo A inclusão educacional de estudantes com autismo e/ou deficiência intelectual no ensino regular, em classe comum, evidencia a urgência de programas de formação docente em práticas educacionais baseadas em evidências. O objetivo foi avaliar a estrutura de um processo formativo remoto para elaboração, aplicação e avaliação de uma intervenção comportamental na perspectiva educacional inclusiva e, mais especificamente, caracterizar as atitudes sociais de agentes educacionais participantes da formação. A formação ocorreu em dois formatos. No primeiro, todo o material foi disponibilizado em uma pasta virtual compartilhada e, no segundo, em um Ambiente Virtual de Aprendizagem (AVA). Nos dois formatos, a estrutura contou com parte teórica e prática, por meio de leitura de textos, realização de exercícios e discussões. Na parte prática, participantes tiveram a oportunidade de trabalhar com famílias e estudantes (crianças e jovens) com autismo e/ou deficiência intelectual visando identificar as necessidades e prioridades da família para elaboração colaborativa de um plano de intervenção (sistematização de práticas), implementação e análise das práticas. Para a caracterização da amostra foram levantadas informações pessoais, experiências prévias, familiaridade com ferramentas tecnológicas, conhecimento sobre os conceitos teóricos da Análise do Comportamento. Foi feita uma caracterização das atitudes sociais em relação à inclusão e analisada a validade social de participantes sobre a formação. Os resultados da formação identificaram correlações entre o nível de atitudes sociais e o engajamento nas atividades práticas entregues, além da relação entre o número de participantes que concluíram a formação, o cumprimento de tarefas e dificuldades de contato com a família. O estudo discutiu sobre estratégias que tenham em vista possibilidades de escalabilidade da formação docente de maneira sistemática e científica nesta área de atuação profissional.

ABSTRACT Based on the temperature and humidity index, for quails from the 3rd to the 5th week of life, in the dry period in Paraíba state, Brazil, the objective was to carry out a bioclimatic zoning, identifying as regions suitable for the reproduction of quails and, when necessary, mitigating measures for greater animal comfort. The bioclimatic zoning was carried out for the mesoregions of the state, the climatic data used are from meteorological stations in the period from 1961 - 2015, from them maps were elaborated with the spatial distribution of the index, identifying as regions with ideal thermal comfort conditions for the animals. For quails in the third week, the Agreste mesoregion presents the best situation in the dry season, not requiring corrective measures to maintain the comfort of these animals. In the fourth week of life of the quails, the mesoregions that would provide THI values within the ZCT in the dry period would be the Zona da Mata paraibana and Sertão, while the ZCT for quails in the fifth week of life, could be found throughout the state of Paraíba.

Abstract Angular leaf spot (ALS), caused by the fungus Pseudocercospora griseola, is one of the most important foliar fungal diseases in common bean (Phaseolus vulgaris L.). The search for new sources of resistance to ALS is a promising activity in common bean breeding programs. In this study, the reaction of 416 germplasm accessions from the Universidade Federal de Lavras (UFLA) to P. griseola (race 63-63, the most important and most aggressive race) was assessed under greenhouse conditions (plants in the V2 stage, fully developed unifoliolate leaves). We identified 102 (24.5%) resistant and 314 (75.5%) susceptible accessions. Among the resistant lines, more than half are Carioca grain type lines. This study characterizes the resistance of a wide collection of common bean genotypes. The identification of new accessions resistant to P. griseola is an important step in common bean breeding programs. These lines can continually be incorporated in backcrosses to obtain cultivars resistant to ALS.

RESUMO: O artigo trata dos primeiros dez congressos de epidemiologia realizados pela Associação Brasileira de Saúde Coletiva, entre 1990 e 2017. Objetivo: O objetivo do artigo é prover um registro histórico desses eventos destacando o contexto no qual eles foram concebidos, os temas adotados e seu sentido quanto ao panorama nacional e internacional da disciplina, as sedes e os presidentes das diferentes edições. Métodos: Os dados foram extraídos dos anais impressos ou eletrônicos dos congressos, havendo alguns lapsos nos dados que não puderam ser preenchidos. Resultados: São também apresentados os números e as características das diferentes atividades, com destaque para conferências e mesas-redondas, palestra, painéis e debates e para a colaboração da comunidade acadêmica e profissional para comunicações coordenadas e pôsteres, traçando um amplo painel de temas e abordagens. O artigo registra a maioria das atividades desenvolvidas. Conclusão: Os autores têm consciência de que o registro apresentado é uma pálida imagem do real significado desses encontros, nos quais o desenvolvimento da epidemiologia foi sendo construída na articulação entre a academia e os serviços de saúde e na cooperação entre pesquisadores nacionais e nossos colegas e amigos que atuam em instituições estrangeiras em diferentes partes do mundo.

ABSTRACT: This paper deals with the first ten epidemiology conferences held by ABRASCO between 1990 and 2017. Objective: To provide historical records of these events, highlighting the context in which they were conceived, the chosen themes and their role in the national and international epidemiological landscape, the venues, and the presidents of the different editions. Methods: Data were extracted from printed and electronic proceedings, with some data gaps that could not be filled. Results: The numbers and characteristics of different activities are also presented, with emphasis on conferences and roundtables, lectures, panels and debates, and the collaboration of the academic and professional community for coordinated communications and posters outlining a wide range of themes and approaches. This paper keeps record of most of the activities carried out. Conclusions: The authors are aware that the record presented is a pale picture of the real meaning of these meetings in which the development of epidemiology was being built, in an articulation between scholars and health services and as a cooperation between national researchers and our companions and friends who work in foreign institutions all around the world.

RESUMO: O artigo trata dos primeiros dez congressos de epidemiologia realizados pela Associação Brasileira de Saúde Coletiva, entre 1990 e 2017. Objetivo: O objetivo do artigo é prover um registro histórico desses eventos destacando o contexto no qual eles foram concebidos, os temas adotados e seu sentido quanto ao panorama nacional e internacional da disciplina, as sedes e os presidentes das diferentes edições. Métodos: Os dados foram extraídos dos anais impressos ou eletrônicos dos congressos, havendo alguns lapsos nos dados que não puderam ser preenchidos. Resultados: São também apresentados os números e as características das diferentes atividades, com destaque para conferências e mesas-redondas, palestra, painéis e debates e para a colaboração da comunidade acadêmica e profissional para comunicações coordenadas e pôsteres, traçando um amplo painel de temas e abordagens. O artigo registra a maioria das atividades desenvolvidas. Conclusão: Os autores têm consciência de que o registro apresentado é uma pálida imagem do real significado desses encontros, nos quais o desenvolvimento da epidemiologia foi sendo construída na articulação entre a academia e os serviços de saúde e na cooperação entre pesquisadores nacionais e nossos colegas e amigos que atuam em instituições estrangeiras em diferentes partes do mundo.

ABSTRACT: This paper deals with the first ten epidemiology conferences held by ABRASCO between 1990 and 2017. Objective: To provide historical records of these events, highlighting the context in which they were conceived, the chosen themes and their role in the national and international epidemiological landscape, the venues, and the presidents of the different editions. Methods: Data were extracted from printed and electronic proceedings, with some data gaps that could not be filled. Results: The numbers and characteristics of different activities are also presented, with emphasis on conferences and roundtables, lectures, panels and debates, and the collaboration of the academic and professional community for coordinated communications and posters outlining a wide range of themes and approaches. This paper keeps record of most of the activities carried out. Conclusions: The authors are aware that the record presented is a pale picture of the real meaning of these meetings in which the development of epidemiology was being built, in an articulation between scholars and health services and as a cooperation between national researchers and our companions and friends who work in foreign institutions all around the world.

ABSTRACT. This study aimed to carry out bioclimatic zoning based on the historical series of climatic variables such as air temperature, maximum, minimum and relative humidity collected in six conventional meteorological stations in the state of Paraíba, Brazil and from this to determine whether or not the animals are in thermal comfort by comparing with the results obtained in scientific research in each mesoregion in the rainy and dry periods. Then based on this the comfort conditions for small ruminants in the rainy and dry seasons of the mesoregions of Paraíba were observed using data from the literature, and demonstrated in spatial distribution maps. The variables air temperatures, maximum and minimum and relative humidity varied throughout the state for the rainy season between 22 to 27, 18 to 21, 25 to 31ºC and 64 to 82%, respectively, and in dry season is 23 to 27, 28 to 35, 19 to 23ºC and 49 to 76%, respectively. However, it is concluded that raising sheep and goats is viable in all mesoregions of the state of Paraíba in both periods.

RESUMO Objetivo: identificar a prevalência de eventos adversos e a necessidade de cuidado do paciente crítico em uma unidade de terapia intensiva. Método: estudo transversal, realizado de janeiro a março de 2020. Os eventos adversos investigados foram: lesão por pressão, extubação orotraqueal acidental, queda, perda de acesso venoso central e infecção relacionada à assistência à saúde. O número de horas necessárias para o cuidado do paciente foi mensurado pela Nursing Activities Score. As variáveis independentes categóricas foram descritas por frequências absoluta e relativa, e as contínuas, por tendência central. A medida de magnitude foi a razão de chance e considerou-se intervalo de confiança de 95%. Resultados: dos 88 pacientes avaliados, 52,3% apresentaram eventos adversos, os quais foram associados à maior necessidade de cuidados, gravidade e ao maior tempo de internação. O Nursing Activities Score médio foi 51,01% (12 h 24 min), sendo identificado um déficit de 20% a 30% de pessoal de enfermagem na unidade. Conclusão: a prevalência dos eventos adversos na unidade é alta e o déficit de pessoal de enfermagem na unidade revelou a necessidade de dimensionamento adequado de pessoal para reduzir os danos ocasionados pelos cuidados prestados aos pacientes críticos.

Abstract Objective: To identify the prevalence of adverse events and the critically ill patient’s need for care in an intensive care unit. Method: This is a cross-sectional study, carried out from January to March 2020. The adverse events investigated were pressure injury, accidental orotracheal extubation, fall, loss of central venous access, and healthcare-associated infection. The number of hours required for patient care was measured by the Nursing Activities Score. The categorical independent variables were described by absolute and relative frequencies, and the continuous ones, by central tendency. The magnitude measure was the odds ratio and a confidence interval of 95% was considered. Results: of the 88 patients evaluated, 52.3% had adverse events, which were associated with a greater need for care, severity, and longer hospital stay. The mean Nursing Activities Score was 51.01% (12 h 24 min), with a deficit of 20% to 30% of nursing staff in the unit being identified. Conclusion: The prevalence of adverse events in the unit is high and the shortage of nursing staff in the unit revealed the need for adequate staffing to reduce the damage caused by the care provided to critically ill patients.

RESUMEN Objetivo: identificar la prevalencia de eventos adversos y la necesidad de cuidado del paciente crítico en una unidad de cuidado intensivo (UCI). Método: estudio transversal, realizado entre enero y marzo de 2020. Los eventos adversos investigados fueron: lesión por presión, extubación oro traqueal accidental, caída, pérdida de acceso venoso central e infección relacionada a la asistencia a la salud. El número de horas necesarias para el cuidado del paciente se midió por la Nursing Activities Score. Las variables independientes categóricas fueron descriptas por frecuencia absoluta y relativa, y las continuas, por tendencia central. La medida de magnitud fue la razón de oportunidad (odds ratio) y se consideró un intervalo de confianza del 95%. Resultados: de los 88 pacientes evaluados, un 52,3% presentaron eventos adversos, los cuales fueron asociados a necesidad de cuidados más intensa, gravedad y tiempo de ingreso más extenso. El Nursing Activities Score medio fue un 51,01% (12 h 24 min), siendo identificado un déficit entre 20% y 30% de personal de enfermería en la unidad. Conclusión: la prevalencia de los eventos adversos en la unidad es alta y el déficit de personal de enfermería en la unidad reveló la necesidad de dimensionamiento adecuado de personal para reducir los daños causados por los cuidados prestados a los pacientes críticos.

BACKGROUND Erythema nodosum leprosum (ENL) is an acute and systemic inflammatory reaction of leprosy characterised by painful nodules and involvement of various organs. Thalidomide is an immunomodulatory and anti-inflammatory drug currently used to treat this condition. Cereblon (CRBN) protein is the primary target of thalidomide, and it has been pointed out as necessary for the efficacy of this drug in others therapeutics settings. OBJECTIVES In this study, we aimed to evaluate the influence of CRBN gene variants on the dose of thalidomide as well as its adverse effects during treatment of ENL. METHODS A total of 103 ENL patients in treatment with thalidomide were included in this study. DNA samples were obtained from saliva and molecular analysis of CRBN gene were performed to investigate the variants rs1620675, rs1672770 and rs4183. Different genotypes of CRBN variants were evaluated in relation to their influence on the dose of thalidomide and on the occurrence of adverse effects. FINDINGS No association was found between CRBN variants and thalidomide dose variation. However, the genotypes of rs1672770 showed association with gastrointestinal effects (p = 0.040). Moreover, the haplotype DEL/C/T (rs4183/rs1672770/rs1620675) was also associated with gastrointestinal adverse effects (p = 0.015). MAIN CONCLUSIONS Our results show that CRBN variants affect the treatment of ENH with thalidomide, especially on the adverse effects related to the drug.

ABSTRACT Infrared thermography (IR) is a non-invasive tool with potential to indicate changes in the animal’s thermal conditions in response to the thermally stressful environment. The objective of this study was to evaluate the application of IR to estimate the rectal temperature of crossbred goats of the Boer breed. Six male crossbred goats of the Boer breed were distributed in a completely randomized design and submitted to temperatures of 26, 30 and 34 °C. Rectal temperature (RT) and thermograms data were collected from animals at each air temperature evaluated. In the thermograms, the temperatures of the ocular globe (PT), head (HT), shoulder (ST), hindquarter (HQ) and maximum infrared (IRMax) of the animals’ surfaces were collected, the latter being observed in the lower region of the animals’ eyes, at all air temperatures evaluated. The correlation of PT, HT, ST, HQ and IRMax data with the RT was evaluated through the Pearson coefficient analysis and the concordance using Bland-Altman diagrams. With the exception of the IRMax surface temperature, the others were adequate for the accurate estimation of RT, with PT standing out for presenting the highest correlation coefficient with RT (r = 0.951) and estimation errors varying in the range of ± 0.27 °C.

Resumo Este estudo investigou os efeitos da inibição de oxigênio e dos procedimentos de acabamento/polimento nas propriedades das resinas compostas. Foram avaliadas uma resina composta bulk fill e duas resinas convencionais (nanoparticulada e microhíbrida). Os espécimes foram confeccionados, variando o tratamento de superfície: controle, sem tratamento; glicerina (inibidor de oxigênio); acabamento e polimento; glicerina + acabamento e polimento. O grau de conversão (GC) foi medido pela Espectroscopia de Infravermelho Transformada de Fourier (FTIR) imediatamente e após 15 dias da confecção dos espécimes (n=5). Os índices de alteração de cor ΔEab, ΔE00 e opacidade foram avaliados por meio de espectrofotômetro, após 15 dias de imersão no café, utilizando o sistema CIELAB (n=5). Os dados da alteração da cor foram analisados pelos testes ANOVA de dois fatores e Tukey (α=0,05) e a opacidade por ANOVA de medidas repetidas. O uso de glicerina aumentou significativamente o GC, no entanto, não teve influência sobre os valores ΔEab e ΔE00. O acabamento e o polimento reduziram os valores de ΔEab e ΔE00, independentemente da resina composta. A resina microhíbrida apresentou maior opacidade, seguida pela nanoparticula e bulk-fill, independentemente do tratamento de superfície. O acabamento e polimento resultou em menor grau de conversão das resinas compostas se comparado ao uso de um agente inibidor de oxigênio (glicerina), porém apresenta resultados similares para a pigmentação pelo café.

Abstract This study investigated the effects of oxygen inhibition and finishing/polishing procedures on the composite resin properties. One bulk-fill and two conventional composite resins (nanoparticle and microhybrid) were evaluated. Specimens were prepared using 4 surface treatments: control, no treatment; Gly, oxygen inhibition with glycerin; FP, finishing and polishing; Gly + FP, glycerin followed by finishing and polishing. The degree of conversion (DC) was measured using Fourier Transformed Infrared Spectroscopy (FTIR) immediately and after 15 days (n=5). Color stability (ΔEab, and ΔE00) and opacity were evaluated using a spectrophotometer after 15 days of immersion in coffee, using the CIELAB system (n=5). Data were analyzed by two-way ANOVA and Tukey tests (α=0.05) and opacity by two-way repeated-measures ANOVA. Glycerin usage increased significantly the DC however had no influence on the ΔEab, ΔE00 and, opacity values. Finishing and polishing reduced ΔEab and ΔE00 values, regardless of composite resins. Microhybrid showed higher opacity, followed by the nanoparticle and bulk fill, regardless of surface treatment. Post-polymerization polishing procedures resulted in lower conversion than using an oxygen inhibitor agent (Gly condition), but similar staining caused by coffee.