Simonides
Mostrando 13-24 de 48 artigos, teses e dissertações.
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13. Effect of monomer content in the monomer-polymer ratio on complete denture teeth displacement
O propósito neste estudo foi verificar a movimentação linear de dentes em prótese total superior confeccionada com resina acrílica, proporcionada com conteúdo de monômero indicado pelo fabricante, com 25% de excesso ou com 25% a menos de monômero, nas técnicas de polimerização convencional e por microondas. Foram confeccionados 30 modelos, represe
Brazilian Dental Journal. Publicado em: 2011
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14. Comparison of silorane and methacrylate-based composite resins on the curing light transmission
O objetivo deste estudo foi avaliar a influência da diferença entre a dureza do topo e da base em compósitos restauradores. Foram utilizados os compósitos restauradores Filtek P90 (compósito à base de silorano) e Heliomolar (compósito à base de metacrilato). A irradiância da unidade foto-ativadodora (UF) foi mensurada com um potenciômetro Ophir Opt
Brazilian Dental Journal. Publicado em: 2010
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15. Influence of light energy density on heat generation during photoactivation of dental composites with different dentin and composite thickness
OBJECTIVE: The aim of this study was to determine the influence of different energy densities on the heat generated during photoactivation of Filtek Z250 (3M/ESPE) and Z100 (3M/ESPE) composite resins with different dentin and composite thickness. MATERIAL AND METHODS: The temperature increase was registered with a type-K thermocouple connected to a digital t
Journal of Applied Oral Science. Publicado em: 2009-08
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16. Influence of investment granulometry on the castability and surface roughness of castings obtained with Ni/Cr alloys
The aim of this study was to verify the influence of investment granulometry on the castability and surface roughness of Ni/Cr castings. Four investments were selected for casting according to decreasing order of granulometry: Heat Shock > Micro Fine 1700 > Gilvest HS > Castotal. Castability was verified by means of 40 specimens made with a polyester screen
Materials Research. Publicado em: 2009-06
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17. Questões de linguagem médica
Revista do Colégio Brasileiro de Cirurgiões. Publicado em: 2009-02
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18. Impact and fracture resistance of an experimental acrylic polymer with elastomer in different proportions
The purpose of this study was to evaluate the impact and fracture resistance of acrylic resins: a heat-polymerized resin, a high-impact resin and an experimental polymethyl methacrylate with elastomer in different proportions (10, 20, 40 and 60%). 120 specimens were fabricated and submitted to conventional heat-polymerization. For impact test, a Charpy-type
Materials Research. Publicado em: 2009
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19. Comparative study of tubular diameter and quantity for human and bovine dentin at different depths
Este estudo comparou a dimensão e a distribuição tubular da dentina humana e bovina. Dez molares humanos e 10 incisivos bovinos foram desgastados com alta rotação para se obter 3 secções de diferentes profundidades de dentina (superficial, média e profunda). As amostras foram cobertas com ouro em um metalizador para a observavação em MEV. Três mic
Brazilian Dental Journal. Publicado em: 2009
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20. Polymerization shrinkage stress of composites photoactivated by different light sources
Este estudo comparou a contração de polimerização de resinas compostas fotoativadas por luz halógena (QTH) e diodo emissor de luz (LED). Foram confeccionados bastões de vidro (5,0 mm x 5,0 cm), e uma de suas extremidades sofreu jateamento com óxido de alumínio, sobre a qual foi aplicado um adesivo e fotoativado com luz halógena. Os bastões de vidro
Brazilian Dental Journal. Publicado em: 2009
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21. Os fragmentos atenienses de Simônides. Um estudo das fontes epigráficas anteriores a 480 a. C. / The Athenian Fragments of Simonides: A Study of the Epigraphical Sources before 480 BC.
RESUMO Serão investigadas, nesta dissertação, as origens da democracia ateniense através da análise de quatro epigramas de Simônides de Ceos e da contextualização de alguns outros. Partindo do assassinato de Hiparco por Harmódio e Aristogíton e traçando suas conseqüências, tanto do ponto de vista mítico quando político, tentaremos demonstrar c
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/02/2008
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22. Influence of energy density of different light sources on knoop hardness of a dual-cured resin cement
The purpose of this study was to evaluate the Knoop hardness of a dual-cured resin-based luting cement irradiated with different light sources as well energy density through a ceramic sample. Three light-curing unit (LCUs) were tested: tungsten halogen light (HAL), light-emitting diode (LED) and xenon plasma-arc (PAC) lamp. Disc-shaped specimens were fabrica
Journal of Applied Oral Science. Publicado em: 2008-06
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23. Influence of ethanol concentration on softening tests for cross-link density evaluation of dental composites
This study investigated the influence of ethanol concentration on softening tests for cross-link density evaluation (microhardness) of dental composites. Specimens of Filtek Z100 (3M ESPE) were light-activated by standard or pulse-delay methods. After initial Knoop hardness readings (KHN1), half of specimens (n = 10) for each irradiation method was stored in
Materials Research. Publicado em: 2007-03
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24. Effect of different initial light intensity by the soft-start photoactivation on the bond strength and Knoop hardness of a dental composite
Este estudo avaliou a resistência de união (push-out) e a dureza Knoop do compósito Z250, fotoativado por luz de lâmpada halógena XL2500, com diferentes modos: Contínuo (700 mW/cm²/20 s) (CO); Soft-start (50 mW/cm²/5 s + 700 mW/cm²/15 s) (SS1), (100 mW/cm²/5 s + 700 mW/cm²/15 s) (SS2), (150 mW/cm²/5 s + 700 mW/cm²/15 s) (SS3), (200 mW/cm²/5 s +
Brazilian Dental Journal. Publicado em: 2007