Composite fillings are tooth-colored fillings to blend in with the remaining natural part of the tooth. The term composite refers to the actual filling material, which is a mixture of glass or quartz filler in a resin medium.
Composites are “bonded” or attached with adhesive to the tooth often allowing a more conservative repair. Composite fillings require that the tooth be kept clean and dry during the entire filling process, and they are subject to stains and discoloration over time. The life expectancy of a white filling can depend greatly on where it is in your mouth and how heavily your teeth come together when you bite.
Composite resins 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.