Heat Polymerized Acrylic Resin
Mostrando 1-12 de 28 artigos, teses e dissertações.
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1. Silver nanoparticle incorporation effect on mechanical and thermal properties of denture base acrylic resins
ABSTRACT Objective The aim of the present study was to evaluate the mechanical and thermal characteristics of two denture base acrylic resins containing silver nanoparticles (AgNPs). Material and Methods Two different acrylic denture base resins (heat-polymerized and microwave polymerized) containing 0.3, 0.8 and 1.6 wt% AgNPs were evaluated for flexural
J. Appl. Oral Sci.. Publicado em: 2016-12
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2. Effects of Denture Cleansers on Heat-Polymerized Acrylic Resin: A Five-Year-Simulated Period of Use
Este estudo avaliou as alterações de cor, rugosidade de superfície e resistência à flexão de resinas acrílicas após imersão em soluções de peróxido alcalino e hipoclorito alcalino, simulando um período de cinco anos de uso. Sessenta corpos de prova circulares (16 mm x 4 mm) e 60 retangulares (65 mm x 10 mm x 3,3 mm) de resina acrílica termic
Braz. Dent. J.. Publicado em: 2015-08
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3. 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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4. Effect of silica coating and silane surface treatment on the bond strength of soft denture liner to denture base material
OBJECTIVE: This study investigated the effects of different surface treatments on the tensile bond strength of an autopolymerizing silicone denture liner to a denture base material after thermocycling. MATERIAL AND METHODS: Fifty rectangular heat-polymerized acrylic resin (QC-20) specimens consisting of a set of 2 acrylic blocks were used in the tensile
J. Appl. Oral Sci.. Publicado em: 2013-07
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5. Soluções higienizadoras de prótese total: avaliação da remoção de biofilme e efeito sobre propriedades da resina acrílica termopolimerizável / Denture cleansing solutions: evaluation of the biofilm removal and effect on properties of heat-polymerized acrylic resin
Este estudo avaliou o efeito de soluções higienizadoras de próteses totais quanto ao controle do biofilme (análise clínica) e à alteração de propriedades da resina acrílica (análise laboratorial). A análise clínica foi realizada em 32 desdentados totais que foram orientados a escovar suas próteses (escova Denture e sabonete líquido) três vezes
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/05/2012
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6. Effect of an acrylic resin combined with an antimicrobial polymer on biofilm formation
OBJECTIVES: The purpose of this study was to evaluate the antimicrobial activity of an acrylic resin combined with an antimicrobial polymer poly (2-tert-butylaminoethyl) methacrylate (PTBAEMA) to inhibit Staphylococcus aureus, Streptococcus mutans and Candida albicans biofilm formation. MATERIAL AND METHODS: Discs of a heat-polymerized acrylic resin were pro
J. Appl. Oral Sci.. Publicado em: 2012-12
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7. Effect of leaching residual methyl methacrylate concentrations on in vitro cytotoxicity of heat polymerized denture base acrylic resin processed with different polymerization cycles
OBJECTIVES: Residual methyl methacrylate (MMA) may leach from the acrylic resin denture bases and have adverse effects on the oral mucosa. This in vitro study evaluated and correlated the effect of the leaching residual MMA concentrations ([MMA]r) on in vitro cytotoxicity of L-929 fibroblasts. MATERIAL AND METHODS: A total of 144 heat-polymerized acrylic res
J. Appl. Oral Sci.. Publicado em: 27/05/2011
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8. Avaliação da dureza Knoop de dentes artificiais de resina acrilica submetidos a metodos de desinfecção quimica e por energia de micro-ondas / Knoop hardness of resin denture teeth after chemical and microwave disinfection
The aim of this study was to evaluate the effect of disinfectant solutions of 2% glutaraldehyde and 1% sodium hypoclorite and microwave disinfection in Knoop hardness values of five brands of acrylic resin denture teeth Trilux (Ruthinium), Biocler (Pirassununga), Biotone (Dentsply), New Ace (Yamahachi) e Magister (Heraeus-Kulzer). One hundred specimens were
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/02/2010
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9. The Effect of Experimental Denture Cleanser Solution Ricinus communis on Acrylic Resin Properties
This study evaluated heat-polymerized (HPR) and microwave-polymerized acrylic resins (MPR), after immersion in water, 1% hypochlorite and Ricinus communis solution (RC). Knoop hardness, color alteration, roughness and flexural strength tests were performed after obtaining the specimens and after time intervals of 15 (T15) and 183 (T183) days. Variations in d
Materials Research. Publicado em: 2010-09
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10. Avaliação da cor, corrosão e rugosidade superficial do titânio c.p., ligas metálicas e resina acrílica termopolimerizável sob a ação de soluções higienizadoras / Color, corrosion and surface roughness evaluation of titanium c.p., alloys and heat-polymerized acrylic resin under the action of daily hygiene solutions
A higienização das próteses parciais ou totais removíveis é fundamental para a durabilidade do tratamento e prevenção de patologias orais. O objetivo deste estudo foi avaliar o efeito de agentes higienizadores de prótese na cor, corrosão e rugosidade superficial do titânio c.p., ligas metálicas e resina acrílica termopolimerizável, simulando um
Publicado em: 2010
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11. The role of polymerization cycle and post-pressing time on tooth movement in complete dentures
This study analyzed the influence of polymerization cycle and post-pressing time on tooth movement in complete dentures. Forty maxillary complete dentures were fabricated and randomly assigned to 8 groups (n = 5); the polymerization cycle (conventional long cycle in water bath, fast cycle in boiling water, and by microwave energy) and the post-pressing time
Brazilian Oral Research. Publicado em: 2009-12
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12. 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