Arun Rana, Nidhi Aggarwal, Priti Gupta, Arvinder Pal Singh, Hitesh Gupta

ABSTRACT

The clinical performance of dental composites has been significantly improved over the past decade through modifications in a formulation that includes: using more stable polymerization promoters for greater color stability; incorporating high concentrations of finely ground fillers to produce adequate strength and excellent wear resistance while retaining translucency; adding radiopacifying agents for improved diagnostics, and utilizing dentin adhesives. Light-cured composites resins are an important group of restorative materials in dentistry and can be used to restore the shape and function of anterior and posterior teeth. The mechanical properties of a restorative material are a crucial factor in their clinical performance including compressive, tensile, and/or flexural strength. These properties are strongly related to the composition (filler content, organic matrix) of the material and may be altered depending on the characteristics of the light source used for curing. The aim of this in vitro study was to evaluate the flexural strength of the direct and indirect composite.