821 resultados para Sistema de nível de tanques
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Pós-graduação em Agronomia (Irrigação e Drenagem) - FCA
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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The disadvantages generated by the acid etching of the dentin, such as an increase in its permeability, in the surface moisture and in the potential to denature the external dentinal collagen, the formation of a fragility zone and the citotoxicity of the adhesive monomers; which are all aggravated by the depth of the dentin, have stimulated new and different treatment philosophies of the dentin. The purpose of the present study, therefore, was to investigate the effects of three dentin treatments: laser irradiation, acid etching and hypermineralization, in the shear bond strength of the SMP Plus bonding system. Sixty bovine incisors were extracted and randomly selected immediatly alter the animal's death. They were kept frozen (-18°C) for no longer than 14 days. After buccal dentinal surface had been exposed, X-Rays were taken to control the dentin thickness. The specimens were separated into two groups: (1) Control, kept in distilled water at 4ºC; (2) Mineralized, kept in hypermineralized solution at 4°C for 14 days. Each group was divided into three sub-groups according to the type of dentin treatment used: group F - followed the manufacturer instructions (acid-etching + primer + bond), group AL (acid-etching + primer + bond + laser) and group LA (laser + (laser + acid-etching + primer + bond). A composite resin standard cylinder (Z100-3M) was bond to the dentinal surface and the shear bond strength performed on a Universal lnstron machine 4301, with 500 Kg load and at 0,5mm/min. speed. The analysis of variance (ANOVA) determined that the treatments influenced the shear bond strength values (p<0,05) with the following average shearing load at failure: AL (9,96 MPa), F (7,28MPa) e LA (4,87 MPa). The interaction between the two factors analyzed Group (control and mineralized) and treatment (F, AL, LA) also influenced the shear bond strength (p<0,05). The highest values were obtained...
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Purpose: To evaluate the association among periodontal disease, diabetes mellitus and arterial hypertension in pregnant women users of the Brazilian Health System (SUS). Methods: The sample consisted of 86 women, with pregnant age between the 4th and 7 th month, submitted to pre-natal attendance in Health Basic Unities (HBUs). Periodontal condition was evaluated by 2 calibrated researchers (Kappa = 0.91) through the Community Periodontal Index (CPI). A sphygmomanometer was used to check the arterial pressure, what was accomplished by the professionals from the HBUs; glycemia test was accomplished through a blood sample collected from the middle finger with a disposable lancet adapted to a lance device (Accu-Chek Softclix Pro; Roche, USA), and for checking the glycemia level, a glycemia monitor was used (Accu-Chek Advantage II, Roche, USA). Data were written on a numbered register form, avoiding patient identification. After, the same data were statistically analyzed through the Fisher Exact Test, in order to evaluate the existence of association between the variables blood glucose and periodontal disease. In this test, a significance level of 0,05 was adopted. Results – Most of the pregnant woman presented periodontal health (58,1%); 41,9% of the research subjects showed at least one sign of periodontal disease, with 31,4% presenting gingivitis and 10,5% periodontitis. Hyperglycemia was detected in 51,2% and it was not found a value of arterial pressure higher than what is considered to be normal. Conclusion: it was not verified a significant association among the presence of periodontal disease, glycemia alteration and arterial hypertension in pregnant women who comprised this research.
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)