COMPARATIVE EVALUATION OF WEAR RESISTANCE OF HYBRID COMPOSITE VS CENTION N

Abstract

Dental restorative materials are constantly exposed to complex conditions in the oral environment, including mechanical forces, temperature changes, moisture, and chemical challenges. Among the mechanical properties required for long-term success of restorations, wear resistance is considered one of the most important. Among the mechanical properties required for long-term success of restorations, wear resistance is considered one of the most important.Hybrid composite resins were developed to improve the mechanical properties of earlier composites by combining macrofill and microfill particles within the resin matrix. Cention N restorative materials using an in-vitro wear simulation method, in order to determine which material demonstrates better resistance to surface wear under simulated oral conditions.Composite resins are among the most widely used restorative materials in modern dentistry due to their excellent aesthetics, good mechanical properties, and adhesive capabilities. Hybrid composite resins, in particular, consist of a combination of fine and microfill particles within a resin matrix, which enhances their mechanical strength and wear resistance. Wear of restorative materials may lead to loss of anatomical form, marginal breakdown, surface roughness, and eventual restoration failure.Cention N is a relatively new alkasite restorative material designed as an alternative to amalgam and composite restorations. It contains alkaline glass fillers capable of releasing fluoride, calcium, and hydroxide ions, which contribute to its anticariogenic properties.