983 resultados para Fenda em guia de ondas


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Advanced Layering composite resins can be facilitated by a technique called "Lingual Matrix", where a guide is made of elastomer by molding a previously waxed tooth or sculped in an intraoral test drive restoration. This technique has many advantages to sophisticated layering, facilitation stratification, anatomic construcrion and the stages of finishing and polishing. However, in some clinical situations, the unfolding of the steps to obtains this matrix can be time consuming or even infeasible. To facilitate the achievement of this apparatus, a technique was idealized allowing significant reducrion in clinical time. This matrix, called the "BRB Matrix" is widly discussed in a didactic and clinical manner in this article, presenting its advantages in clinical cases where it is imperative to use a guide for conduction a controlled layering. The simplicity of this approach, as well as reduced clinical time and finacial costs turn it feasible in an everyday clinical practice.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Neste livro são expostos, para uso de profissionais da área, os princípios básicos e conceitos fundamentais, além dos procedimentos necessários para a prática da Medicina Baseada em Evidências (MBE). A MBE é uma prática relativamente nova, criada em 1992, pelo cientista epidemiologista Gordon Guyatt, na canadense McMaster University. Trata-se da utilização e do desenvolvimento de métodos rigorosos que respondam a questões clinicas sobre efetividade, eficiência e segurança de determinado tratamento e prevenção, bem como sobre a sensibilidade e especificidade de testes diagnósticos de certa doença na área de saúde. A MBE propõe realizar pesquisas de boa qualidade metodológica e livres de vieses e conflitos de interesse, de forma que as respostas sejam adequadas para auxiliar na tomada de decisão clínica. Segundo a MBE, a melhor forma de saber se uma medicação específica é eficaz no tratamento de determinada doença é a revisão sistemática de ensaios clínicos randomizados, que mapeiam os estudos publicados e não publicados realizados mundialmente sobre o assunto. Tal revisão deve ainda contar com metodologia rigorosa que busque, por exemplo, explicar resultados contraditórios sobre a mesma questão e comparar estudos com diferentes amostras para detectar possível diferença estatística. De forma didática e detalhada, mas mantendo todo o rigor científico, esta obra tem caráter de manual. Ao longo dos capítulos, seus autores explicam conceitos e apresentam o passo a passo da utilização da MBE para os profissionais de saúde.

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Pós-graduação em Televisão Digital: Informação e Conhecimento - FAAC

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Pós-graduação em Engenharia Elétrica - FEIS

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Pós-graduação em Engenharia Mecânica - FEIS

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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This work investigates the gender effect on visual demand of drivers for dynamic maps at different cartographic scales presented In-Vehicle Route Guidance and Navigation System (RGNS). A group of 52 subjects (26 males and 26 females) took part in an experiment performed in a low-cost driving simulator. the driver's task consisted of navigating in an unknown route using a RGNS prototype which presents maps at two different cartographic scales. This paper replicates the known phenomenon of significant relationships between gender and performance at visual-spatial tasks issue. Our results show that drivers of different genders present distinct levels of visual demand both due to the cartographic scales and maneuver complexity variation. These discussed results are based upon individual differences in terms of spatial ability and spatial anxiety.

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Pós-graduação em Ciência dos Materiais - FEIS

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Pós-graduação em Odontologia Restauradora - ICT

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On heat cured acrylic resins by microwaves energy the action of electromagnetic waves on methylmethacrylate promote the polymerization process. However, part of this energy is absorbed by the gypsum present in the flask and the function of this gypsum is to maintain the characteristics of specimen, nevertheless is unknown in the literature as the amount of water present in this gypsum affects the characteristics of acrylic resin. The proposal of this study was verified if dried gypsum influenced in some properties of the acrylic resins thermally activated by microwaves: presence of porosity, microhardness, roughness, flexural strength and dimensional change. Two different types of acrylic resin for complete denture were utilized: Lucitone 550 e Vipi-Wave and groups were formed: Lucitone 550, polymerization by microwave energy without gypsum treatment; Lucitone 550, polymerization by microwave energy with pretreatment gypsum; Vipi-Wave by microwave energy without gypsum treatment; Vipi Wave, polymerization by microwave energy with pretreatment gypsum; Lucitone 550 control group polymerization in hot water bath. For both situations were performed analysis of microhardness and porosity three different metallic shaped specimens were formed with followed dimensions: 2,0x2,0x2,0cm (8cm3); 2,0x2,0x1,0 (4cm3) e 2,0x2,0x0,5 (2cm3). Standardized wax specimens was used to prepare groups (n=9) and included in glass fiber flasks. The gypsum dry was made by microwave oven cycle (10min and 600W) and then the flasks were maintained in dry oven during two hours. Polymerizations of specimens were made and then polished. Wax patterns #7 obtained from the metal were embedded in plastic flask and following the processes of pressing and polymerization of the resin according to established groups. To evaluate the flexural strength, specimens 65mm x 10mm x 3.0mm from metallic patterns in bar format were made. ...