Home › Forums › Endodontics & conservative dentistry › push-out shear bond strength of four types of glass ionomers when used to bond amalgam: › push-out shear bond strength of four types of glass ionomers when used to bond amalgam:
Hybrid Ionomer Cements or Resin-modified Glass Ionomers or Dual-Cured GIC
These combine an acid-base reaction of the traditional glass ionomer with a self-cure amine-peroxide polymerization reaction. These light-cured systems have been developed by adding polymerizable functional methacrylate groups with a photo-initiator to the formulation. Such materials undergo both an acid-base ionomer reaction as well as curing by photo-initiation and self cure of methacrylate carbon double bonds or in other words their acid-base reactions are supplemented by a second resin polymerization initiated (usually) by a light-curing process. For this reason they’re also called Dual-Cured GIC. Developed in 1992 the resin-modified glass ionomer cements in their simplest form are glass ionomer cements that contain a small quantity of a water-soluble, polymerizable resin component. More complex materials have been developed by modifying the polyalkenoic acid with side chains that could polymerize by light-curing mechanisms in the presence of photo initiators, but they remain glass ionomer cements by their ability to set by means of the acid-base reaction.
Modern resin modified glass ionomer cements include Advance, GC Fuji PLUS [1] and Vitremer Luting. Most recent development in this field are the paste-paste resin modified GIC luting cement such as GC FujiCEM