Glass Ionomer Cements in Orthodontics

The ability to practice minimally invasive dentistry relies on techniques and materials that maximize the preservation of tooth structure. Glass ionomer cements, which were first introduced more than three decades ago, have contributed to this practice. Since then, glass ionomers have been developed that offer improved physical strength and esthetics. This has led to their use for non-stress-bearing posterior restorations and for anterior and Class V restorations. Currently, these materials are used for anterior and posterior restorations, sandwich technique restorations, build- ups, sealants, lining cements and cement bases under restorations, long-term temporary restorations, luting of indirect restorations and for bonding orthodontic brackets and bands. (Table 1)