A composite filling is a tooth-colored plastic and glass mixture used to restore decayed teeth. Composites are also used for cosmetic improvements of the smile by changing the color of the teeth or reshaping disfigured teeth.

In dentistry, material made from mixture of resin and silica used in tooth-colored fillings and other restorative work. It was created as an alternative to metallic fillings, which were much more visible due to their dark coloring. Also known as a resin matrix. composite cement,. n a dental adhesive made of colloidal silica