The effect of ultra-fast photopolymerisation of experimental composites on shrinkage stress, network formation and pulpal temperature rise

Nov 25, 2017 by in Dental Materials Comments Off on The effect of ultra-fast photopolymerisation of experimental composites on shrinkage stress, network formation and pulpal temperature rise

Highlights • TPO and CQ-based experimental resin composites were prepared and their physical properties analyzed. • The use of TPO with appropriate curing parameters leads to improved conversion. • Mechanical…

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Mapping camphorquinone consumption, conversion and mechanical properties in methacrylates with systematically varied CQ/amine compositions

Nov 25, 2017 by in Dental Materials Comments Off on Mapping camphorquinone consumption, conversion and mechanical properties in methacrylates with systematically varied CQ/amine compositions

Abstract Objectives To evaluate conversion, bulk mechanical properties and camphorquinone (CQ) consumption in methacrylate resins, comprising a range of overall initiator concentrations and CQ/amine ratios. Methods BisGMA (Bisphenol-A glycidyl dimethacrylate),…

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RAFT-mediated control of nanogel structure and reactivity: Chemical, physical and mechanical properties of monomer-dispersed nanogel compositions

Nov 25, 2017 by in Dental Materials Comments Off on RAFT-mediated control of nanogel structure and reactivity: Chemical, physical and mechanical properties of monomer-dispersed nanogel compositions

Highlights • A RAFT-based initiating system successfully provided nanogels with latent reactivity. • The nanogel additives progressively reduced photopolymerization shrinkage and stress. • RAFT residual functionality on nanogels affected conversion…

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Effects of quaternary ammonium-methacrylates on the mechanical properties of unfilled resins

Nov 25, 2017 by in Dental Materials Comments Off on Effects of quaternary ammonium-methacrylates on the mechanical properties of unfilled resins

Abstract Objective Adding antimicrobial/anti-MMP quaternary ammonium methacrylates (QAMs) to comonomer blends should not weaken the mechanical properties of dental resins. This work evaluated the degree conversion and mechanical properties of…

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