Aim: to find out if there is a significant difference in the curing efficiency at the claimed 4 mm depth and in the mechanical properties between the tested pasteform bulk fill resin composite materials. Materials and Methods: Three paste-consistency bulk-fill resin composites were used in this study (Filtek bulk fill3M; X-trafilVoco; and SonicFill bulk-fillKerr). For the microhardness testing,...

Aim: To evaluate the bottom/top hardness ratio (B/T) and dentin bonding stability of conventional bulk-fill resin composites in high c-factor preparations. Methods: Regular (Tetric N-Ceram – TNC, Polofil Supra PFS), regular Bulk fill TBF, Admira Fusion X-tra AFX), low viscosity N-flow TNF, Base XTB) were used to restore 180 conical The specimens randomly distributed 12 groups (n = 15) according...

Introduction/Objective. The objective was to determine the degree of conversion (DC), cross-link density, percentage leachable monomers, flexural strength (FS), and hardness (HV) nanohybrid, nanofilled bulk-fill, giomer, fiber-reinforced, low-shrinkage composites. Methods. Standardized specimens (n = 5/group) Tetric EvoCeram Bulk Fill, Filtek Beautifil, EverX posterior, Kalore, Z250 (microhybri...

To determine the polymerization shrinkage (%) and stress (MPa) characteristics of ultra-rapid photo-polymerized bulk fill resin composites. Two (URPBF) materials: PFill PFlow were studied, along with their comparators ECeram EFlow. contains an addition fragmentation chain transfer (AFCT) agent. The URPBR materials irradiated using two different 3 s high irradiance protocols (3000 3200 mW/cm2 ba...