Resin-based composites have a number of advantages for restorative treatment. They possess desirable aesthetic properties and favor retention of sound tooth structure because they require less cavity preparation than traditional amalgam restorations. Recent clinical studies have demonstrated that composites can now match or exceed the longevity of amalgam.
Despite improvements in resin-based composite technology, US dentists are placing more amalgam restorations than composites, and amalgam is still emphasized by US dental schools, according to the results of 2 studies published in the June issue of the Journal of the American Dental Association.
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