Synthesis and study of physical properties of dental light-cured nanocomposites using different amounts of a urethane dimethacrylate trialkoxysilane coupling agent

Nov 28, 2017 by in Dental Materials Comments Off on Synthesis and study of physical properties of dental light-cured nanocomposites using different amounts of a urethane dimethacrylate trialkoxysilane coupling agent

Abstract Objective The purpose of this work was the study of the effect of the amount of a urethane dimethacrylate silane (UDMS) coupling agent on physical properties of dental light-cured…

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Can poly(acrylic) acid molecular weight mixtures improve the compressive fracture strength and elastic modulus of a glass-ionomer restorative?

Nov 28, 2017 by in Dental Materials Comments Off on Can poly(acrylic) acid molecular weight mixtures improve the compressive fracture strength and elastic modulus of a glass-ionomer restorative?

Abstract Objectives To optimize the compressive fracture strength ( σ ) and elastic modulus ( E ) of a glass-ionomer (GI) restorative using poly(acrylic) acid (PAA) weight average molecular weight…

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Crystallization and flexural strength optimization of fine-grained leucite glass-ceramics for dentistry

Nov 28, 2017 by in Dental Materials Comments Off on Crystallization and flexural strength optimization of fine-grained leucite glass-ceramics for dentistry

Abstract Objectives Leucite glass-ceramics with fine-grained leucite crystals promote improved mechanical strength and increased translucency. The objectives of the study were to optimize the microstructure of a fine-grained leucite glass-ceramic…

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Methacrylate- and silorane-based composite restorations: Hardness, depth of cure and interfacial gap formation as a function of the energy dose

Nov 28, 2017 by in Dental Materials Comments Off on Methacrylate- and silorane-based composite restorations: Hardness, depth of cure and interfacial gap formation as a function of the energy dose

Abstract Objectives To investigate the influence of the energy dose on the hardness, polymerization depth, and internal adaptation of silorane and methacrylate-based posterior composites in Class II restorations with different…

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Effect of post-polymerization heat-treatments on degree of conversion, leaching residual MMA and in vitrocytotoxicity of autopolymerizing acrylic repair resin

Nov 28, 2017 by in Dental Materials Comments Off on Effect of post-polymerization heat-treatments on degree of conversion, leaching residual MMA and in vitrocytotoxicity of autopolymerizing acrylic repair resin

Abstract Objectives This study evaluated the effect of post-polymerization heat-treatments on degree of conversion (DC), residual methyl methacrylate concentration (MMA r ) and in vitro cytotoxicity of autopolymerizing acrylic repair…

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Pressed ceramics onto zirconia. Part 2: Indentation fracture and influence of cooling rate on residual stresses

Nov 28, 2017 by in Dental Materials Comments Off on Pressed ceramics onto zirconia. Part 2: Indentation fracture and influence of cooling rate on residual stresses

Abstract Objectives The aim of this study was to evaluate the fracture toughness and surface residual stresses present in various pressable ceramics to zirconia resulting from cooling induced temperature gradients….

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Evaluation of resin composite polymerization by three dimensional micro-CT imaging and nanoindentation

Nov 28, 2017 by in Dental Materials Comments Off on Evaluation of resin composite polymerization by three dimensional micro-CT imaging and nanoindentation

Abstract Objectives Light-cured composites undergo shrinkage during polymerization. The aim of this study was to evaluate regional shrinkage within a light-cured composite during polymerization by microcomputed tomography and mechanical properties…

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Biomimetic remineralization of human dentin using promising innovative calcium-silicate hybrid “smart” materials

Nov 28, 2017 by in Dental Materials Comments Off on Biomimetic remineralization of human dentin using promising innovative calcium-silicate hybrid “smart” materials

Abstract Introduction The hypothesis was that experimental ion-leaching bioactive composites enhance remineralization of apatite-depleted dentin. Materials and methods Calcium-aluminosilicate (wTC-Ba) or fluoride-containing calcium-aluminosilicate (FTC-Ba) Portland-derived mineral powders were mixed with…

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