Glass ionomer cement is a tooth-colored dental restorative material introduced in 1972. It bonds chemically to tooth structure and releases fluoride for a long period. It sets via an acid-base reaction between glass powder and polyacrylic acid liquid. Glass ionomer cement has properties like adhesion to tooth structure, anticariogenic activity due to fluoride release, and biocompatibility. However, its strength and esthetics are inferior to dental composites. Modifications to glass ionomer cement include resin-modified and metal-modified varieties to improve strength. The sandwich technique combines the benefits of glass ionomer cement with those of composite resin.

1. GLASS IONOMER CEMENT dr shabeel pn

2. INTRODUCTION Glass ionomer cement is a tooth coloured material, introduced by Wilson & Kent in 1972.Material was based on reaction between silicate glass powder & polyacrylic acid.They bond chemically to tooth structure & release fluoride for relatively long period.

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