Activa Bioactive Restorative - A3.5 Value Refill: 2 - 5ml/8g Syringes and 40 Mixing Tips (20 with Bendable 20-Gauge Metal Cannula & 20 with Intraoral Tip). Natural esthetics Highly polishable. Tough, resilient, fracture and wear resistant, absorbs shock. Releases and recharges calcium, phosphate and fluoride. ACTIVA BioACTIVE-RESTORATIVE is a highly esthetic, bioactive composite that delivers all the advantages of glass ionomers in a strong, resilient, resin matrix that will not chip or crumble. It chemically bonds to teeth, seals against microleakage, releases more, calcium, phosphate and fluoride and is more bioactive than glass ionomers, and is more durable and fracture resistant than composites.1,2,3,4,5,17,18