Glassionomer cements belong to the class of materials known as acidbase cements. Unlike conventional gics that consist of a glass powder and a polyacid solution, resin modified gics also have a polymer resin component which usually sets by a selfactivated chemically cured or lightactivated polymerization reaction. In 1972, wilson and kent introduced glass ionomer cements that cured via a simple acidbase reaction. Gc fujicem 2 is a secondgeneration, resin modified glass ionomer luting cement. The resinmodified glass ionomer materials are hybrid materials of traditional glass ionomer cement with a small addition of lightcuring resin, and hence exhibit properties intermediate to the. Glass ionomer cement an overview sciencedirect topics.