When a tooth has begun to decay (most commonly because of a cavity), a filling will be required to stop further damage. The process of “filling” in a tooth includes the removal of the damaged areas (due to decay or fracture) and replacing it with a material. In the past, this material consisted of broken-down amalgam/metal fillings that contain traces of mercury. However, today’s fillings are white (composites) that give your smile and teeth a more natural look and feel. With this development, patients no longer have to suffer the embarrassment of unsightly silver/mercury fillings in their mouths. These dark, black appearances in your teeth have been replaced with new-age, state-of-the-art, tooth-colored resin or porcelain materials.