ACTIVA BioACTIVE-BASE/LINER delivers all the advantages of glass ionomers in a strong, resilient resin matrix that will not chip or crumble. Chemically bonds to teeth, seals against bacterial microleakage, releases more fluoride and is more bioactive than glass ionomers and is more durable and fracture resistant than composites. It is the first bioactive base/liner with an ionic resin matrix, a shock-absorbing resin component and bioactive fillers that mimic the physical and chemical properties of natural teeth. It releases and recharges with calcium, phosphate and fluoride ions delivering long-term benefits and better oral health care for your patients. No Bisphenol A, No Bis-GMA and no BPA derivatives.