Composite (white) Restorations
Composite (white) restorations. The main advantage of a direct composite/ plastic as opposed to the more traditional amalgam (silver) filling is improved aesthetics, and the ability to bond directly to the tooth. Composites come in a range of shades and often this allows a near invisible restoration that can strengthen the tooth's structure. It also means that, unlike silver fillings, there is no need for the dentist to create retentive features that can weaken healthy teeth.
The disadvantage to a composite resin restoration compared to amalgam, is a shorter lifespan of the filling. In addition, composite resin restorations should ideally be confined to restorations of small to medium size. Large or complex defects (cavities) are better restored with crowns, inlays or onlays, as these have better strength, durability and aesthetics compared to large composite or amalgam restorations.