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A comparison of glazing materials for composite restorations.

Composite restorations containing quartz fillers have shown persistent roughness after finishing which contributes to marginal discoloration and staining. Resin finish coatings have been used to attempt to overcome this problem. This study was designed to compare the durability of two resin coating materials used on two brands of composite restorative materials. Results showed that composites glazed with resin coating finishes at placement maintained their luster, color match, and surface smoothness significantly better after one year than composites that were not coated. After a year it was concluded that composites on which the resin coating is intact maintain their color match, luster, and smoothness significantly better than uncoated composite restorations.