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Now showing items 1-10 of 11
Polymerization efficiency and flexural strength of low-stress restorative composites
(Elsevier Sci Ltd, Oxford, 2014)
Objectives.To assess depth of cure (DOC), degree of conversion (DC), and flexural strength( FS) of several resin composites with low-stress behavior. Methods. SonicFill (Kerr), SureFil((R)) SDRTM (Dentsply), everX Posterior ...
Effect of resin and photoinitiator on color, translucency and color stability of conventional and low-shrinkage model composites
(Elsevier Sci Ltd, Oxford, 2016)
Objective. To study the effect of a low-shrinkage methacrylate monomer and monoacylphosphine oxide photoinitiator on color, translucency, and color stability of model resin-based composites (RBCs). Methods. Four micro-hybrid ...
Degree of conversion and monomer elution of CQ/amine and TPO adhesives
(Elsevier Sci Ltd, Oxford, 2014)
Objective. To evaluate the effect of photo-initiator on the degree of conversion (DC) and elution of Bis-GMA and HEMA for 8 one-step adhesive formulations. Methods. We used Scotchbond Universal ('SBU-CQ/amine 4.0', 3M ...
Bond strength of restorative materials to hydroxyapatite inserts and dimensional changes of insert-containing restorations during polymerization
(Elsevier Sci Ltd, Oxford, 2015)
Objective. To determine the shear bond strength (SBS) between synthetic controlled porous hydroxyapatite (HAP) inserts and restorative materials and dimensional changes of insert-containing restorations during curing. ...
Monomer elution from nanohybrid and ormocer-based composites cured with different light sources
(Elsevier Sci Ltd, Oxford, 2011)
Objectives. To study monomer elution from four resin-based composites (RBCs) cured with different light sources. Methods. Twenty-eight premolars were randomly allocated to four groups. Standardized cavities were prepared ...
The effect of ferrule height on stress distribution within a tooth restored with fibre posts and ceramic crown: A finite element analysis
(Elsevier Sci Ltd, Oxford, 2014)
Objectives. To evaluate via finite element analysis the effect of different ferrule heights on stress distribution within each part of a maxillary first premolar (MFP) restored with adhesively luted glass fiber-reinforced ...
Local deformation fields and marginal integrity of sculptable bulk-fill, low-shrinkage and conventional composites
(Elsevier Sci Ltd, Oxford, 2016)
Objective. To compare strain and displacement of sculptable bulk-fill, low-shrinkage and conventional composites as well as dye penetration along the dentin-restoration interface. Methods. Modified Class II cavities (N= ...
Cytotoxicity and genotoxicity of a low-shrinkage monomer and monoacylphosphine oxide photoinitiator: Comparative analyses of individual toxicity and combination effects in mixtures
(Elsevier Sci Ltd, Oxford, 2017)
Objective. To compare cytotoxicity and genotoxicity of novel urethane-based monomer FIT-852 and monoacylphosphine oxide photoinitiator (Lucirin TPO) with conventional Bisphenol A-glycidyl-methacrylate (BisGMA) and triethylene ...
Optical properties of composite restorations influenced by dissimilar dentin restoratives
(Elsevier Sci Ltd, Oxford, 2018)
Objectives. To evaluate optical properties (color and translucency) of 'sandwich' restorations of resin-based composites and esthetically unfavorable dentin restoratives. Methods. Cylindrical 'dentin' specimens (8 mm in ...
Optical properties of composite restorations influenced by dissimilar dentin restoratives
(Elsevier Sci Ltd, Oxford, 2018)
Objectives. To evaluate optical properties (color and translucency) of 'sandwich' restorations of resin-based composites and esthetically unfavorable dentin restoratives. Methods. Cylindrical 'dentin' specimens (8 mm in ...