Step-by-step guide to perfect acrylic dentures The Unipress system stands for perfect dentures with absolute precision of fit, which can be injection moulded quickly. 1 Unipress complete, V2A + Teflon This system operates indepently of any power or compressed air supply and is suitable for use with both cold and heat curing acrylics. As the resin is injected into a sealed flask, the bite cannot be raised or reduced. The disk springs in the top housing ensure that pressure is exerced on the resin dough during the entire polymerization process. http://www.panadentonline.com/product_info.php?products_id=1011