Dental Acrylic Resins
Mostrando 1-12 de 31 artigos, teses e dissertações.
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1. Effect of cleanser solutions on the color of acrylic resins associated with titanium and nickel-chromium alloys
This study evaluated the effect of cleanser solutions on the color of heat-polymerized acrylic resin (HPAR) and on the brightness of dental alloys with 180 immersion trials. Disk-shaped specimens were made with I) commercially pure titanium, II) nickel-chromium-molybdenum-titanium, III) nickel-chromium molybdenum, and IV) nickel-chromium-molybdenum beryllium
Braz. oral res.. Publicado em: 11/06/2014
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2. Avaliação in vitro do efeito da incorporação de clorexidina nas propriedades físicas e na atividade antibacteriana de resinas acrílicas autopolimerizáveis / Effect of the incorporation of chlorhexidine in provisional crown and bridge acrylic resins on their physical properties
Objetivo. O objetivo do presente estudo foi avaliar o efeito da incorporação de diacetato de clorexidina (CDA), em diferentes concentrações e tempos de armazenamento, nas propriedades físicas e na atividade antibacteriana de resinas acrílicas, utilizadas na confecção de coroas e pontes provisórias. Métodos. Fase I: Foram confeccionados 150 corpos d
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/02/2012
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3. Multi-species biofilm of Candida albicans and non-Candida albicans Candida species on acrylic substrate
OBJECTIVE: In polymicrobial biofilms bacteria extensively interact with Candida species, but the interaction among the different species of the Candida is yet to be completely evaluated. In the present study, the difference in biofilm formation ability of clinical isolates of four species of Candida in both single-species and multi-species combinations on th
Journal of Applied Oral Science. Publicado em: 2012-02
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4. Influência da rugosidade e energia livre de superfície de materiais para próteses removíveis a base de polimetilmetacrilato nas propriedades do biofilme de Candida albicans / Influence of the roughness and free energy surfasse of the materials for removable prosthesis the base of polymethymethacrylate in the properties of biofilm of Candida albicans
The properties of surface of the resins and reliners base of polymethymethacrylate used in removable dental prosthesis can interfere in the adhesion, colonization and formation of biofilm of Candida spp., microorganism associated to the prosthetic stomatitis. The objective of this research was to evaluate the influence of the roughness and the free energy of
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/07/2011
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5. Surface roughness analysis of acrylic resin for provisional crowns under different commercial brands / Análise da rugosidade superficial de diferentes marcas comerciais de resina acrílica para coroas provisórias
Provisional crowns have some features that may compromise aesthetics and favors adherence of microorganisms and dental plaque formation. Previous studies have shown that processing may influence roughness and porosity of acrylic resins commonly used make provisional crowns. Because the several commercial resins available present differences in their quality
Publicado em: 2010
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6. Efeito da ciclagem térmica e imersão em clorexidina nas propriedades físicas das resinas de bisacrilato de metila e metacrilato de metila / Effect of thermo cycling and chlorexidine immersion in physicals properties of bis-acryl and methacryl resins
O uso de resinas acrílicas para confecção de restaurações provisórias é bastante difundido na prática odontológica. Dois tipos de resina encontram-se comercialmente disponíveis, as de bisacrilato de metila e as de metacrilato de metila e, em decorrência das exigências funcionais e estéticas das restaurações provisórias, estes materiais devem
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/06/2009
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7. 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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8. Resistencia ao impacto da união dente-resina acrilica sob efeito da desinfecção simulada por energia de microondas / Effect of simulated microwave disinfection on bond strength of acry teeth and denture base resins
The aim of this study was to evaluate the effect of microwave disinfection in bond strength of acrylic teeth and a denture base resin. A hundred sixty rectangular wax patterns (30x15x5mm) were embedded in flasks with type III dental stone. After cristalization, the resulting moulds were filled with laboratorial silicone (Zetalabor), in which a molar acrylic
Publicado em: 2009
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9. Determinação das forças geradas por resinas acrílicas ativadas quimicamente durante o processo de transferência da posição de implantes Análise fotoelástica
The great number of laboratorial phases during implant-supported prostheses may contribute to deficient passivity fit. This misalignment could lead to screws relieves and also, the loss of osseointegration. Impression technique is an important step to be observed. Many materials and techniques are involved in this stage and acrylic resin is the most frequent
Publicado em: 2008
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10. 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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11. Quantificação de metacrilatos residuais e avaliação da liberação em saliva artificial a partir de resinas acrílicas para reembasamento imediato
This work reports the development of analytical methods, using High Performance of Liquid Chromatography (HPLC), to quantify unreacted monomers from dental reline autopolimerizing acrylic resins. The quantification of these unreacted methacrylates is directly related with theirs toxicity, once that these may not only be irritant to the mucosa, but may also c
Publicado em: 2008
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12. Clinical and mechanical performance of self-etching adhesive to primary caries-affected dentin / Desempenho clinico e mecanico de adesivo auto-condicionante a dentina decidua afetada por carie
The purpose of this study was to verify the effect of flask closure method (conventional clamp and RS tension system) and post-pressing time (immediate and after 6 hours) on the maxillary denture base adaptation made with Classico and QC-20 heat?cured acrylic resins. Eighty maxillary stone cast/wax base sets were made and randomly assigned into 8 groups (n=1
Publicado em: 2007