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Tendências de gastos com cuidados odontológicos por provedores e serviços de saúde, e Quintis do índice sociodemográfico em 195 países, de 2000 a 2017

2026-05-26T17:49:44Z

Título: Tendências de gastos com cuidados odontológicos por provedores e serviços de saúde, e Quintis do índice sociodemográfico em 195 países, de 2000 a 2017 Autor: CAMPOS, Handreza Régia Santos Siqueira Primeiro orientador: HUGO, Fernando Neves Abstract: The number of people affected by oral diseases in the world is approximately 3.5 billion. In this scenario, dental care spending is uneven across countries. Health expenditure analyses have been conducted to understand the current global health financing situation and to assist in health planning. The objective of this study is to describe trends in dental care spending, by health providers and services, and by Socio-Demographic Index quintiles in 195 countries, between 2000 and 2017. Health account data were extracted from 195 countries and expenditures categorized according to the System of Health Accounts. Missing or non-existent data were estimated using a Bayesian multivariate model to construct complete time series. Spending trends were measured using generalized linear regression and the Prais-Winsten method. The results showed that per capita expenditure and total expenditure, in millions of dollars, on dental care by total and outpatient/clinical service providers revealed a clear gradient, with values increasing with greater socioeconomic development. In 2017, countries in high quintile had per capita expenditure 278 and 93 times higher than countries in the low and lower-middle quintile, respectively. Dental expenditure represented a small share in relation to total health expenditure, regardless of the level of development of the countries (in 2017, low quintile – 2,55% and high – 4,66%). In the trend analysis, all quintiles showed an increase in per capita expenditure and total dental expenditure, in relation to total dental providers and outpatient/clinical care. It was concluded that there were large inequalities in the distribution by levels of economic development in dental care spending. To date, this work is the most comprehensive proposal for analyzing trends in dental care expenditure. The findings of this study can help managers identify the prioritization that has been given to public oral health policies, also considering the context of the Universal Health Coverage Agenda, the Global Oral Health Strategy and the Sustainable Development Goals. Instituição: Universidade Federal do Maranhão Tipo do documento: Dissertação

Potencial terapêutico do polissacarídeo da goma do cajueiro e sua associação com fluoreto na mitigação da erosão dentinária exposta a um modelo in vitro de refluxo gastroesofágico: análise mecânica, morfológica e colagenolítica

2026-05-21T16:06:24Z

Título: Potencial terapêutico do polissacarídeo da goma do cajueiro e sua associação com fluoreto na mitigação da erosão dentinária exposta a um modelo in vitro de refluxo gastroesofágico: análise mecânica, morfológica e colagenolítica Autor: MENDES, Thaysa Fernandes Pinto Primeiro orientador: FIRROZMAND, Leily Macedo Abstract: Aguardando envio Instituição: Universidade Federal do Maranhão Tipo do documento: Tese

TENDÊNCIA TEMPORAL DA CÁRIE NA PRIMEIRA INFÂNCIA E DOENÇAS NÃO-TRANSMISSÍVEIS: GLOBAL BURDEN OF DISEASE STUDY 2021

2026-05-20T19:13:00Z

Título: TENDÊNCIA TEMPORAL DA CÁRIE NA PRIMEIRA INFÂNCIA E DOENÇAS NÃO-TRANSMISSÍVEIS: GLOBAL BURDEN OF DISEASE STUDY 2021 Autor: COSTA, Cayara Mattos Primeiro orientador: RIBEIRO, Cecilia Claudia Costa Abstract: This work addresses early childhood caries, specifying the temporal trend and aspects such as asthma and obesity, which are intervening factors. Instituição: Universidade Federal do Maranhão Tipo do documento: Tese; Trabalho sob sigilo.Motivo do sigilo: O artigo 1 foi publicado em revista que não permite a divulgação.Prazo previsto para disponibilização total: Não há.

Adesivos autocondicionantes com biovidro 45S5 funcionalizados com clorexidina: Avaliação da resistência de união e nanoinfiltração ao longo do tempo

2026-05-20T19:06:13Z

Título: Adesivos autocondicionantes com biovidro 45S5 funcionalizados com clorexidina: Avaliação da resistência de união e nanoinfiltração ao longo do tempo Autor: ASSIS, Felipe Catarino de Primeiro orientador: LIMA, Darlon Martins Abstract: Adhesive systems play a fundamental role in restorative procedures, but their durability can be compromised by the degradation of the hybrid layer due to the activity of collagenolytic enzymes, such as MMPs. Strategies to improve the longevity of adhesive interfaces include the use of bioactive particles, such as 45S5 bioglass, which promotes remineralization and functionalization with drugs. The aim of this study was to evaluate the bond strength and nanoleakage pattern of an experimental self-etching adhesive system containing 45S5 bioglass particles functionalized with chlorhexidine. Materials and methods: Experimental self-etching adhesive systems containing 45S5 bioglass particles functionalized or not with chlorhexidine, at different concentrations (5% and 20%), were evaluated using 48 human third molars. Bond strength was tested 24 hours and after 6 months, and nanoleakage was analyzed with silver nitrate and SEM. A commercial adhesive system and an experimental adhesive system without particles were used as controls. Statistical analysis included Two-Way ANOVA and Holm-Sidak test (α = 0.05). Results: Bond strength tests to dentin revealed significant differences between the immediate and six-month evaluation times (p < 0.001), with no significant interaction between adhesive type and time (p = 0.526), indicating that the performance of the adhesives followed similar trends. Aging reduced bond strength in all adhesives tested. Nanoleakage analysis indicated a significant interaction between adhesive and time (p = 0.016), with the 45S5 5% adhesive showing improvement after 6 months, outperforming the control (p < 0.05), while 45S5 20% showed worsening. 45S5 CHX 5% also outperformed 45S5 20%, evidencing the influence of composition and storage time on nanoleakage. Conclusions: Although the bond strength values to dentin were similar between the groups, the experimental adhesive 45S5 5% demonstrated greater stability in the nanoleakage test after six months, highlighting its potential as a bioactive material to improve the durability of resin-dentin interfaces. Functionalization with chlorhexidine also contributed positively, reinforcing its viability to inhibit interface degradation over time. Instituição: Universidade Federal do Maranhão Tipo do documento: Dissertação