Most of us have had amalgam fillings (silver) or gold filling restorations. Some amalgam fillings were what we have called mercury fillings, as some amalgam fillings contained mercury. Metal fillings were effective, but very conspicuous and tended to blacken in color over time.
Composite resin dental fillings were created as an alternative to traditional metal dental fillings. Tooth fillings colored to look like a natural tooth are known as Composite Resin Dental Fillings, are made of a plastic dental resin. Composite Resin Dental Fillings are strong, durable, and make for a very natural looking smile.