Tooth-colored fillings can offer a durable, aesthetically-pleasing solution to cavities and tooth decay. Also called white fillings or composite fillings, this common dental treatment involves the use of tooth-colored resin material to fill cavities and crevices in order to provide strength, stability, and natural-looking results. Tooth-colored fillings have come a long way since traditional, mercury-based fillings used in dentistry years ago, and they can provide an effective solution for patients of any age.