Glass ionomer cement: actual use and perspectives in restorative dentistry

Abstract

The glass ionomer cements (GIC) have presented a less clinical usage along the past years as a consequence of limitations on esthetics and mechanical properties when compared with composites. But the recent and intense discussion involving biocompatibility of composites and degradation of adhesive systems turned over the interests on GIC again. Perhaps the fact that GIC present lower immediate bond strength when compared with composite adhesive system, their values stay stable along the time. For this reason some authors have been considering the GIC as an adhesive system. The biocompatibility research have demonstrated that GIC can be an excellent substitute for calcium hydroxide cements on indirect pulp capping and can be safe used as an restorative material on intimate periodontal region.