Who wouldn’t prefer fillings that match the natural color of your teeth so well that nobody could tell the difference, as opposed to metal amalgam fillings that can blacken with age?
Not only do tooth-colored fillings offer an aesthetic alternative to dental silver/mercury amalgam fillings — they can often allow for a treatment method that preserves more of the tooth’s structure. A problem with amalgam fillings is that they cannot bond with the tooth — they merely rest on it and need undercuts to hold them in place. Undercutting removes some of the healthy tooth, and that can lead to weakening and future cracks.