OptiBond FL® Adhesive System is a filled, light-cure bonding agent with fluoride release for all direct restorations and indirect core buildup. This simple two-bottle primer/adhesive process has only one light-curing step. Reduced polymerization shrinkage Provides micromechanical retention for a structured bond and protection against microleakage Reinforcement of both the adhesive and hybrid layers, resulting in higher bond strength Makes X-ray detection easy