65 research outputs found

    Surface agents' influence on the flexural strength of bilaminated ceramics

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    The objective of this study was to evaluate the influence of different surface agents on the flexural strength of a ceramic system. Eighty bar-shaped specimens of zirconia were divided into four groups according to the agent to be used: group Control-to be cleaned with alcohol; group VM9-application of a fluid layer of porcelain; group Effect Bonder-application of a bonding agent; and group Coloring Liquid-application of coloring liquid. All specimens received the porcelain application by the layering technique and were then subjected to thermocycling. The four-point bending test was performed to calculate the strength values (s, MPa) and the failure modes were classified. ANOVA did not detect significant differences among the groups. The Weibull modulus were 5 (Control, VM9 and Effect Bonder) and 6 (Coloring Liquid). The cracking of the porcelain ceramic toward the interface was the predominant failure mode. It was concluded that the surface agents tested had no effect on the flexural strength of the bilaminated ceramic specimens.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Instituto de Ciência e Tecnologia - ICT Univ Estadual Paulista - UNESP, São José dos Campos, SPDepartment of Dental Materials and Prosthodontics Instituto de Ciência e Tecnologia - ICT Univ Estadual Paulista - UNESP, São José dos Campos, SPDepartment of Restorative Dentistry Instituto de Ciência e Tecnologia - ICT Univ Estadual Paulista - UNESP, São José dos Campos, SPInstituto de Ciência e Tecnologia - ICT Univ Estadual Paulista - UNESP, São José dos Campos, SPDepartment of Dental Materials and Prosthodontics Instituto de Ciência e Tecnologia - ICT Univ Estadual Paulista - UNESP, São José dos Campos, SPDepartment of Restorative Dentistry Instituto de Ciência e Tecnologia - ICT Univ Estadual Paulista - UNESP, São José dos Campos, SPFAPESP: 11/13085-

    Impact of Systemic Inflammation and Autoimmune Diseases on apoA-I and HDL Plasma Levels and Functions

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    The cholesterol of high-density lipoproteins (HDLs) and its major proteic component, apoA-I, have been widely investigated as potential predictors of acute cardiovascular (CV) events. In particular, HDL cholesterol levels were shown to be inversely and independently associated with the risk of acute CV diseases in different patient populations, including autoimmune and chronic inflammatory disorders. Some relevant and direct anti-inflammatory activities of HDL have been also recently identified targeting both immune and vascular cell subsets. These studies recently highlighted the improvement of HDL function (instead of circulating levels) as a promising treatment strategy to reduce inflammation and associated CV risk in several diseases, such as systemic lupus erythematosus and rheumatoid arthritis. In these diseases, anti-inflammatory treatments targeting HDL function might improve both disease activity and CV risk. In this narrative review, we will focus on the pathophysiological relevance of HDL and apoA-I levels/functions in different acute and chronic inflammatory pathophysiological conditions

    How are legal matters related to the access of traditional knowledge being considered in the scope of ethnobotany publications in Brazil?

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