MASTER-DENT GLASS IONOMER LINER KIT (15Gm POWDER/15mL LIQUID) Chemically bonds to dentin and can be acid etched along with the surrounding enamel to accept an esthetic overlay of composite. Protects the tooth from harsh monomers to help prevent sensitivity. This fluoride releasing base is beneficial under every composite restoration. It flows easily to cover all dentin and sets in three minutes after placement.