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. Composite fillings, provide good durability and resistance to fracture in small- to mid-size fillings that need to withstand moderate pressure from the constant stress of chewing. They can be used on either front or back teeth. They are a good choice for people who prefer that their fillings look more natural.
A composite resin is used on the affected tooth or teeth. It is molded and sculpted over an adhesive gel that is placed on the tooth. After the resin has been applied an ultraviolet light is used to harden the resin, which is then polished to give you a fresh, new smile.