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Reconsidering glass-ionomer cements for direct restorations.

Glass-ionomer cements (GICs) have been used in dentistry for a number of applications, primarily as a base or liner under other direct filling materials or indirect restorative materials, for crown buildup/foundation restorations, or as luting cements for indirect restorations. However, GICs have many unique attributes that make them useful for either a full-contour restoration or sandwich/hybrid restorations where they are synergistic with composite resins. This article, which includes two brief case reports, discusses the potential advantages of GIC for some direct applications where composite resin or other materials may not be the most ideal choice.