Activa BioActive Base/Liner Value Pack by Pulpdent SKU 939-0693AA 123 $218.99 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart ACTIVA Base/Liner is the first dental base/liner with a bioactive resin matrix, a shock-absorbing resin component, and bioactive glass fillers. Moisture friendly, bioactive restorative for proactive dentistry.