Delivery of macromolecules across oral mucosa from polymeric hydrogels is enhanced by electrophoresis (iontophoresis)

Nov 25, 2017 by in Dental Materials Comments Off on Delivery of macromolecules across oral mucosa from polymeric hydrogels is enhanced by electrophoresis (iontophoresis)

Abstract Objective To develop polymeric hydrogel delivery systems for iontophorseis transfer of large molecules across buccal (porcine) mucosa. Methods Three hydrogels (PVA, HPMC and PVA/HPMC) were prepared as stable gels…

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The impact of hydrofluoric acid etching followed by unfilled resin on the biaxial strength of a glass-ceramic

Nov 25, 2017 by in Dental Materials Comments Off on The impact of hydrofluoric acid etching followed by unfilled resin on the biaxial strength of a glass-ceramic

Abstract Objectives To evaluate the null hypotheses that hydrofluoric (HF) acid etching time would neither decrease the biaxial flexural strength of a glass-based veneering ceramic nor enhance it after silane…

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Effect of autoclave induced low-temperature degradation on the adhesion energy between yttria-stabilized zirconia veneered with porcelain

Nov 25, 2017 by in Dental Materials Comments Off on Effect of autoclave induced low-temperature degradation on the adhesion energy between yttria-stabilized zirconia veneered with porcelain

Abstract Objective To investigate the effect of autoclave induced low-temperature degradation on the adhesion energy between yttria-stabilized zirconia veneered with porcelain. Methods The strain energy release rate using a four-point…

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A randomized controlled 5-year prospective study of two HEMA-free adhesives, a 1-step self etching and a 3-step etch-and-rinse, in non-carious cervical lesions

Nov 25, 2017 by in Dental Materials Comments Off on A randomized controlled 5-year prospective study of two HEMA-free adhesives, a 1-step self etching and a 3-step etch-and-rinse, in non-carious cervical lesions

Abstract Objective The aim of this study was to evaluate the 5 year clinical dentin bonding effectiveness of two HEMA-free adhesives in Class V non-carious cervical lesions. Material and methods…

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Comparative evaluation of dental resin composites based on micron- and submicron-sized monomodal glass filler particles

Nov 25, 2017 by in Dental Materials Comments Off on Comparative evaluation of dental resin composites based on micron- and submicron-sized monomodal glass filler particles

Abstract Objectives A model resin composite containing a novel monomodal inorganic filler system based on submicron-sized Ba–Si–Al glass particles (NanoFine NF180; Schott) was formulated and compared with an experimental composite…

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Analysis of thermal distributions in veneered zirconia and metal restorations during firing

Nov 25, 2017 by in Dental Materials Comments Off on Analysis of thermal distributions in veneered zirconia and metal restorations during firing

Abstract Objective The present work evaluated the thermal behavior of porcelain–metal and porcelain–zirconia restorations during fast and slow firing and cooling. Methods All-ceramic (porcelain on zirconia) and porcelain-fused-to-metal (PFM) molar…

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Time-dependent fracture probability of bilayer, lithium-disilicate-based, glass–ceramic, molar crowns as a function of core/veneer thickness ratio and load orientation

Nov 25, 2017 by in Dental Materials Comments Off on Time-dependent fracture probability of bilayer, lithium-disilicate-based, glass–ceramic, molar crowns as a function of core/veneer thickness ratio and load orientation

Abstract Recent reports on bilayer ceramic crown prostheses suggest that fractures of the veneering ceramic represent the most common reason for prosthesis failure. Objective The aims of this study were…

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