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OBJECTIVE: To analyze the spatiotemporal distribution of hospital admission rates for primary care-sensitive conditions (PCSC) in women and children in the first 1000 days of life in Brazil. METHODS: Ecological study, with spatiotemporal analyses, using secondary data from Brazilian municipalities. PCSC in women, related to prenatal care and childbirth, and in children under two years old, from 2008 to 2019 were used to characterize trends and formations of spatiotemporal clusters/outliers. Crude PCSC rates were calculated and adjusted by the local empirical Bayesian method, presented in choropleth maps. We also used Anselin Local Moran I type analyses to identify spatial clusters, and space-time cube with clustering by emerging hotspot, followed by time series clustering, for analysis of spatiotemporal trends (alpha = 5%). RESULTS: A total of 1,850,776 PCSC were registered in pregnant women, puerperae, and children under two years of age in Brazil, representing 1.7% of the total number of hospital admissions in the period. PCSC rates showed different behaviors when the groups of women and children were evaluated, with a predominant growing trend of 109% in admissions in the first group and a reduction of 34.4% in the second. The North, Northeast, and Midwest regions had larger high-risk clusters and more significant increasing trends in PCSC in the two subpopulations studied. CONCLUSIONS: Health actions and services in primary care may be reducing hospital admissions for children, but they are not being effective in reducing hospital admissions for women for causes related to prenatal care and childbirth, especially in the North, Northeast, and Midwest of Brazil. Investments in the qualification of care over the thousand days are urgent in the country.

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Purpose: The present study analysed the association between anaemia and dental caries in adolescents on the basis of predisposing factors and presence of severely decayed teeth.
Materials and Methods: This observational study included a complex probabilistic sample of adolescents (17-18 years old) enrolled at public schools in São Luís, Brazil (n = 363). Two hypothesis models were tested: (1) anaemia and dental caries are associated given that they share predisposing factors, such as socioeconomic and high sugar consumption, and (2) the presence of severely decayed teeth may increase the susceptibility of patients to anaemia. In the first model, the association between anaemia and the history of dental caries (the outcome number of affected teeth) was analysed by Poisson regression. In the second model, the association between the presence of severely decayed teeth with pulp exposure/necrosis and the outcome anaemia was analysed by logistic regression. Bivariate and multivariate analyses after adjusting for socioeconomic factors and sugar consumption were performed, considering 5% of statistical significance level and using STATA 115.0.
Results: Anaemia was associated with a higher number of affected teeth with a history of dental caries in bivariate (means ratio [MR]: 1.30; 95% confidence intervals [CI95%]: 1.10-1.52; p = 0.001) and multivariate (MR: 1.18; CI95%: 1.01-1.39; p = 0.046) analyses. Severely decayed teeth with pulp exposure/necrosis were associated with anaemia in bivariate (odds ratios [OR]: 5.75; CI95%: 1.97-16.8; p = 0.001)] and multivariate (OR 5.51; CI95%: 1.71-17.74; p = 0.004) analyses.
Conclusion: This study suggests that anaemia and dental caries are associated in a population-based sample of adolescents and that predisposing factors and severely decayed teeth seem to be involved in this association..

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Uma adesão satisfatória pode ser dificultada na presença de agentes dessensibilizantes, como nas cavidades do tipo Classe V. Este estudo teve como objetivo investigar a influência de dois agentes dessensibilizantes na resistência de união de um sistema adesivo autocondicionante quando aplicados previamente ao sistema adesivo. Foram utilizadas 30 coroas de incisivos bovinos, sendo incluídos em buchas de redução de PVC pré-fabricadas, com auxílio de resina acrílica. A superfície vestibular foi preparada, deixando a dentina exposta e os 30 conjuntos foram divididos em três grupos: G1 (adesivo + resina), G2 (oxagel + adesivo + resina) e G3 (G.H.F + adesivo + resina). Então, cilindros de resina composta (4 mm de diâmetro e 4 mm de altura) foram confeccionados. Decorridas 24 horas, os espécimes foram submetidos ao ensaio de cisalhamento e velocidade do atuador de 0,5 mm/min. Os dados foram submetidos ao teste de análise de variância de um fator (Anova - one way), complementados pelo teste de Tukey. Houve diferença estatística significante entre os tratamentos (G2 - 2,49 < G1 - 11,01 = G3 - 10,1). Assim, conclui-se que a resistência de união do sistema adesivo autocondicionante na dentina pré-tratada com agentes dessensibilizantes é prejudicada pelo uso do produto à base de oxalato.

A satisfactory bonding may be hampered in the presence of desensitizers agents, such as class V cavities. The aim of this study was to compare the effect of two different desensitizers on shear bond strength of a self-etch adhesive system. Thirty crowns of bovine incisors were mounted in pre-fabricated acrylic PVC using acrylic resin. The vestibular surface was prepared exposing the dentin and the crowns were divided into three groups: G1 (adhesive + resin), G2 (oxagel + adhesive + resin), and G3 (GHF + adhesive + resin). Resin composite cylinders (4 mm in diameter and 4 mm in height) were then placed. After 24 hours, shear bond strengths were measured using a circular knife-edge and crosshead speeds of 0.5 mm/minute. One-way ANOVA and Tukey’s tests were used to compare the different conditions for bonding system. There was a statistically significant difference between treatments (G2 – 2.49 < G1 – 11.01 = G3 – 10.1). It was concluded that the shear bond strength of the self-etch adhesive system on dentin pre-treated with desensitizing agents is decreased by the use of the product based on oxalate

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