204 research outputs found
Effect of thermal cycling and filling technique on leakage of composite resin restorations
Three-year randomised clinical trial to evaluate the clinical performance, quantitative and qualitative wear patterns of hybrid composite restorations
The aim of the study was to compare the clinical performance, quantitative and qualitative wear patterns of conventional hybrid (Tetric Ceram), micro-filled hybrid (Gradia Direct Posterior) and nano-hybrid (Tetric EvoCeram, TEC) posterior composite restorations in a 3-year randomised clinical trial. Sixteen Tetric Ceram, 17 TEC and 16 Gradia Direct Posterior restorations were placed in human molars and evaluated at baseline, 6, 12, 24 and 36Â months of clinical service according to US Public Health Service criteria. The gypsum replicas at each recall were used for 3D laser scanning to quantify wear, and the epoxy resin replicas were observed under scanning electron microscope to study the qualitative wear patterns. After 3Â years of clinical service, the three hybrid restorative materials performed clinically well in posterior cavities. Within the observation period, the nano-hybrid and micro-hybrid restorations evolved better in polishability with improved surface gloss retention than the conventional hybrid counterpart. The three hybrid composites showed enamel-like vertical wear and cavity-size dependant volume loss magnitude. Qualitatively, while the micro-filled and nano-hybrid composite restorations exhibited signs of fatigue similar to the conventional hybrid composite restorations at heavy occlusal contact area, their light occlusal contact areas showed less surface pitting after 3Â years of clinical service
Effect of light curing modes and ethanol immersion media on the susceptibility of a microhybrid composite resin to staining
Silorane- and high filled-based"low-shrinkage" resin composites: shrinkage, flexural strength and modulus
Optimizing light-cured composite through variations in camphorquinone and butylhydroxytoluene concentrations
Influence of different adhesive systems on the pull-out bond strength of glass fiber posts
Influence of the curing method on the post-polymerization shrinkage stress of a composite resin
Effect of resin-modified glass-ionomer cement lining and composite layering technique on the adhesive interface of lateral wall
Materials and luting cements for indirect restorations
3nonenoneFerrari M; Vichi A; Feilzer AJFerrari, Marco; Vichi, Alessandro; Feilzer, A
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