The relationship between cyclic hygroscopic dimensional changes and water sorption/desorption of self-adhering and new resin-matrix composites

Nov 25, 2017 by in Dental Materials Comments Off on The relationship between cyclic hygroscopic dimensional changes and water sorption/desorption of self-adhering and new resin-matrix composites

Abstract Objectives This study evaluated the relationship between mass changes and hygroscopic dimensional changes during water sorption/desorption cycles in new resin composites. Methods A silorane posterior composite (Filtek ® Silorane,…

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Polymerization development of “low-shrink” resin composites: Reaction kinetics, polymerization stress and quality of network

Nov 25, 2017 by in Dental Materials Comments Off on Polymerization development of “low-shrink” resin composites: Reaction kinetics, polymerization stress and quality of network

Abstract Objectives To evaluate “low-shrink” composites in terms of polymerization kinetics, stress development and mechanical properties. Methods “Low-shrink” materials (Kalore/KAL, N’Durance/NDUR, and Filtek P90/P90) and one control (Esthet X HD/EHD)…

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Post-hot isostatic pressing: A healing treatment for process related defects and laboratory grinding damage of dental zirconia?

Nov 25, 2017 by in Dental Materials Comments Off on Post-hot isostatic pressing: A healing treatment for process related defects and laboratory grinding damage of dental zirconia?

Abstract Objective Processing parameters (powder granulation, compaction, debinding, greenbody shaping, sintering) and post-sinter rough, even fine grinding are influencing the final mechanical properties of 3Y-TZP. The hypothesis of this study…

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Effects of antioxidants on DNA-double strand breaks in human gingival fibroblasts exposed to methacrylate based monomers

Nov 25, 2017 by in Dental Materials Comments Off on Effects of antioxidants on DNA-double strand breaks in human gingival fibroblasts exposed to methacrylate based monomers

Abstract Objective (Co)monomers from dental resin composites have cytotoxic and genotoxic potential. In previous studies it has been demonstrated that antioxidants can decrease the cytotoxicity of various dental (co)monomers. In…

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Transdentinal cytotoxicity of experimental adhesive systems of different hydrophilicity applied to ethanol-saturated dentin

Nov 25, 2017 by in Dental Materials Comments Off on Transdentinal cytotoxicity of experimental adhesive systems of different hydrophilicity applied to ethanol-saturated dentin

Abstract The aim of this study was to evaluate the transdentinal cytotoxicity of experimental adhesive systems (EASs) with different hydrophilicity and dentin saturation solutions on odontoblast-like cells. One hundred 0.4-mm-thick…

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Cytotoxicity and induction of DNA double-strand breaks by components leached from dental composites in primary human gingival fibroblasts

Nov 25, 2017 by in Dental Materials Comments Off on Cytotoxicity and induction of DNA double-strand breaks by components leached from dental composites in primary human gingival fibroblasts

Abstract Introduction The public interest steadily increases in the biological adverse effects caused by components released from resin-based dental restorations. Objective In this study, the cytotoxicity and the genotoxicity were…

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Physico-chemical characterization of zirconia–titania composites coated with an apatite layer for dental implants

Nov 25, 2017 by in Dental Materials Comments Off on Physico-chemical characterization of zirconia–titania composites coated with an apatite layer for dental implants

Abstract Objectives To investigate the crystalline phases, morphological features and functional groups on the surface of sintered Y:TZP/TiO 2 composite ceramics before and after the application of a biomimetic bone-like…

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Impact of plasma treatment of PMMA-based CAD/CAM blanks on surface properties as well as on adhesion to self-adhesive resin composite cements

Nov 25, 2017 by in Dental Materials Comments Off on Impact of plasma treatment of PMMA-based CAD/CAM blanks on surface properties as well as on adhesion to self-adhesive resin composite cements

Abstract Objectives To test surface energy, roughness and tensile bond strength (TBS) to self-adhesive resin composite cements without/with plasma treatment combined with different conditioning methods of PMMA-based CAD/CAM blocks. Methods…

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In vitro precision of fit of computer-aided design and computer-aided manufacturing titanium and zirconium dioxide bars

Nov 25, 2017 by in Dental Materials Comments Off on In vitro precision of fit of computer-aided design and computer-aided manufacturing titanium and zirconium dioxide bars

Abstract Objectives Optical scanners combined with computer-aided design and computer-aided manufacturing (CAD/CAM) technology provide high accuracy in the fabrication of titanium (TIT) and zirconium dioxide (ZrO) bars. The aim of…

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Correlation between degree of conversion, resin–dentin bond strength and nanoleakage of simplified etch-and-rinse adhesives

Nov 25, 2017 by in Dental Materials Comments Off on Correlation between degree of conversion, resin–dentin bond strength and nanoleakage of simplified etch-and-rinse adhesives

Abstract Objectives The aim of this study was to correlate the degree of conversion measured inside the hybrid layer (DC) with the microtensile resin–dentin bond strength (μTBS) and silver nitrate…

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