Effect of shrinkage strain, modulus, and instrument compliance on polymerization shrinkage stress of light-cured composites during the initial curing stage

Nov 30, 2017 by in Dental Materials Comments Off on Effect of shrinkage strain, modulus, and instrument compliance on polymerization shrinkage stress of light-cured composites during the initial curing stage

Abstract Objectives The aim of this study was to investigate the influence of shrinkage strain, modulus, and instrument compliance on the polymerization shrinkage stress measurement of light-cured composites, and to…

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Covalent adaptable networks as dental restorative resins: Stress relaxation by addition–fragmentation chain transfer in allyl sulfide-containing resins

Nov 30, 2017 by in Dental Materials Comments Off on Covalent adaptable networks as dental restorative resins: Stress relaxation by addition–fragmentation chain transfer in allyl sulfide-containing resins

Abstract Objectives The aim is to demonstrate significant polymerization shrinkage stress reduction in model resins through incorporation of addition–fragmentation chain transfer moieties that promote network stress accommodation by molecular rearrangement….

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Cytotoxicity of monomers, plasticizer and degradation by-products released from dental hard chairside reline resins

Nov 30, 2017 by in Dental Materials Comments Off on Cytotoxicity of monomers, plasticizer and degradation by-products released from dental hard chairside reline resins

Abstract Objectives The aim of this study was to evaluate the cytotoxic effect of the monomers isobutyl methacrylate (IBMA) and 1,6-hexanediol dimethacrylate (1,6-HDMA), the plasticizer di- n -butyl phthalate (DBP),…

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Apatite formation on bioactive calcium-silicate cements for dentistry affects surface topography and human marrow stromal cells proliferation

Nov 30, 2017 by in Dental Materials Comments Off on Apatite formation on bioactive calcium-silicate cements for dentistry affects surface topography and human marrow stromal cells proliferation

Abstract The effect of ageing in phosphate-containing solution of bioactive calcium-silicate cements on the chemistry, morphology and topography of the surface, as well as on in vitro human marrow stromal…

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Contraction stress of low-shrinkage composite materials assessed with different testing systems

Nov 30, 2017 by in Dental Materials Comments Off on Contraction stress of low-shrinkage composite materials assessed with different testing systems

Abstract Objectives The contraction stress of a silorane-based material and a new low-shrinkage nanohybrid composite were compared to three conventional dimethacrylate-based resin composites using two different measuring systems. It was…

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