Health care of people with visual or hearing disabilities Visual or hearing disabilities account for 20% of people reporting some sort of disability. We performed a literature review about the interaction that people with visual or hearing disabilities have with the health care system. We found that these people report a lower quality of life and have a higher frequency of physical and psychological ailments. They also have difficulties to obtain an adequate health care and report a paucity of trained professionals to take care of them.

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The effect of magnesium chloride as an additive of hydrothermal carbonization (HTC) of lignocellulosic biomass (Pinus radiata sawdust) was studied. The HTC tests were carried out at fixed conditions of temperature and residence time of 220 °C and 1 h, respectively, and varying the dose of magnesium chloride in the range 0.0–1.0 g MgCl2/g biomass. The carbonized product (hydrochar) was tested in order to determine its calorific value (HHV) while using PARR 6100 calorimeter, mass yield by gravimetry, elemental analysis using a LECO TruSpec elemental analyzer, volatile matter content, and ash content were obtained by standardized procedures using suitable ovens for it. The results show that using a dose of 0.75 g MgCl2/g biomass results in an impact on the mass yield that was almost equal to change operating conditions from 220 to 270 °C and from 0.5 to 1 h, without additive. Likewise, the calorific value increases by 33% for this additive dose, resulting in an energy yield of 68%, thus generating a solid fuel of prominent characteristics.

How to cite this article: Garrido JC, Matamala D, Cartes-Velásquez R, Campos V. Improving dental service utilization rate using a proactive telephone-based scheduling strategy in primary healthcare. Pesqui Bras Odontopediatria Clín Integr. 2020; 20:e5043. https://doi. Abstract Objective:To determine the effect of a proactive telephone-based scheduling strategy to improve dental service utilization rate in primary healthcare. Material and Methods: A retrospective study was carried out based on the dental appointments' records of a primary healthcare center before-strategy and after-strategy periods. The variables studied for both periods were the number of dental appointments requested, dental appointments undergone, no-shows, and available quotas. Data collection was performed by two researchers between May and June 2018. Descriptive statistics were used to calculate the absolute and relative frequencies. Results: A total of 10,193 records of dental appointments were registered within the two periods. After-strategy period, dental appointments undergone increased by 16,7%, no-shows decreased by 3%, and available quotas decreased by 21.3%. Conclusion: A proactive telephone-based scheduling strategy increased the dental service utilization rate in primary healthcare.

Introduction: Scale of oral health outcomes for five-year-old children (SOHO-5) and early childhood oral health impact scale (ECOHIS) has been validated for Chilean population; however, there is no clarity which scale has a better performance and discriminant validity for caries. Objectives: The aim of this study was to compare SOHO-5 (parental version and child's self-reports) and ECOHIS in a sample of Chilean preschoolers. Material and methods: 121 pairs were selected from the Pablo Neruda School in Curanilahue, Chile. Collection of dmft/DMFT indices, socio-demographic data, and application of instruments were performed in the facilities of the school. Parents answered ECOHIS and SOHO-5p (parental version), and children answered SOHO-5c (child's self-reports). Mann-Whitney U test and Spearman's correlation coefficients were used for statistical analysis. Results: SOHO-5p and ECOHIS were strongly correlated. Moreover, SOHO-5p and ECOHIS could discriminate between preschoolers with and without severe caries. In contrast, SOHO-5c did not correlated with SOHO-5p, nor ECOHIS. In addition, SOHO-5c could not distinguish between the presence and absence of severe caries among the sample. Conclusions: ECOHIS and SOHO-5p were both significantly correlated with OHRQoL among preschoolers. However, SOHO-5c did not correlate with any of the variables studied, nor with SOHO-p or ECOHIS. ECOHIS showed a greater discrimination with the oral health status of preschoolers, as measured by the presence of severe caries.