Microwave Curing
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Simple and Low-Cost Thermal Treatments on Direct Resin Composites for Indirect Use
Resumo O objetivo deste estudo foi avaliar a influência de três tratamentos térmicos adicionais de baixo custo, disponíveis no consultório dentário, nas propriedades mecânicas, químicas e ópticas de uma resina composta fotoativada indicada para restaurações diretas porém usada como restaurador indireto. A resina composta direta TPH3 (Dentsply) fo
Braz. Dent. J.. Publicado em: 03/06/2019
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2. Influence of preheating and post-curing on a novel fiber-reinforced composite post material
Abstract The aim of this study was to investigate the influence of preheating and post-curing methods on diametral tensile strength (DTS), flexural strength (FS), knoop microhardness (KHN), and degree of conversion (DC) of an experimental fiber-reinforced composite (FRC). Specimens (30 wt% of 3-mm-short E-glass fiber, 22.5 wt% of methacrylated-based resin an
Braz. oral res.. Publicado em: 29/10/2018
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3. Assessment of the flexural strength of two heat-curing acrylic resins for artificial eyes
Prosthetic eyes are artificial substitutes for the eyeball, made of heat-curing acrylic resin, serving to improve the esthetic appearance of the mutilated patient and his/her inclusion in society. The aim of this study was to assess the flexural strength of two heat-curing acrylic resins used for manufacturing prosthetic eyes. Thirty-six specimens measuring
Brazilian Oral Research. Publicado em: 2009-09
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4. Performance of radar absorbing nanocomposites by waveguide measurements
Sol-gel synthesis has been investigated in order to produce stoichiometric compositions of Ba3Co2Fe24O41 (Co2Z) at lower calcination temperatures, using citric acid as quelant complex. Using this method, Co2Z ferrite could be synthesized at 950 °C, about 400 °C lower than that of conventional method. Nanocomposites (80:20% weight) of this ferrite with poly
Materials Research. Publicado em: 2008-09
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5. Study of the tooth movement in complete denturees processed by different polymerazation cyclews and post-pressing times / Estudo do deslocamento dental linear em proteses totais processadas em diferentes ciclos de polimerização e tempos pós-prensagem
This study verified the tooth movement in maxillary complete dentures submitted to different polymerization cycles and post-pressing times. Forty maxillary complete dentures fabricated with Classico, QC-20, and Onda-Cryl acrylic resins, were randomly assigned into 8 groups (n=5) according to the polymerization cycles (long cycle in water bath (control-group)
Publicado em: 2008
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6. ESTUDO DA TERMOGRAVIMETRIA E AVALIAÇÃO DA POROSIDADE DE RESINAS ACRÍLICAS UTILIZADAS EM PRÓTESE TOTAL
As resinas acrílicas são, até o momento, os materiais mais adequados para confecção de bases de próteses e aparelhos ortodônticos. No entanto, essas resinas, possuem algumas problemáticas significativas, como o longo tempo de trabalho (quando polimerizadas pelo método convencional), a porosidade, a liberação de monômero residual e as possíveis a
Publicado em: 2006
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7. "Estudo das resinas acrílicas para bases de próteses totais com relação à resistência flexural, e à quantidade de monômero residual superficial" / Study of acrylic resin for complete denture considering flexural strength and quantity of superficial residual mono mer
The purpose of this work was the evaluation of flexural strength and quantity of superficial residual monomer in acrylic resin for complete denture. To perform both analyses it was developed specimens with a dimension of 2.5mm x 10mm x 65mm. The inclusion process was standardized by the use of plastic flasks reinforced with fiberglass. Seven groups were cons
Publicado em: 2005
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8. Avaliação da desadaptação e da inclinação dental de proteses totais superiores submetidas a diferentes metodos de processamento em função da sorção de agua com alteração na temperatura e pressão
The aim of this work was to evaluate the adaptation and change in dental inclination of the first molars in upper complete dentures in function of the curing method and water sorption shown by the resin, before changes in pressure and temperature of storage of the samples. Sbcty dentures were constructed and divided into 4 groups: (G I) cured in 73° C water
Publicado em: 2001
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9. Avaliação de propriedades mecanicas e quimica, de uma resina acrilica polimerizada sob pressão no microondas, utilizando o sistema de injeção
Injection molded technique is an efficient and accurate method for processing dentures. However, the process may cause adverse effects upon chemical and physical properties of the restn. This study evaluated the effects of injection-molded system, upon a microwave polymerization cycle under pressure (Onda-cryl resin). Control group was formed by compression
Publicado em: 2001