A composite (tooth colored) filling is used to repair a tooth with minimal or no visible evidence that the tooth has been repaired. Composite fillings can be used to repair cracks, decay, or other dental problems. The dentist removes the affected portion of the tooth and then places a composite filling.
Composite fillings and silver amalgam fillings are the most widely used today, although silver amalgam fillings are slowly disappearing because they are very visible, they contain mercury which can stain your teeth, they are not very stable and after a while the edges tend to break down. Composite fillings are definitely the choice for front teeth or any other visible tooth surface.
Composite fillings are usually placed in one appointment. After numbing the tooth, the dentist removes any decay and cleans and shapes the tooth to receive the filling. The composite filling is then precisely placed on the tooth and it is then shaped and polished, restoring the tooth to its natural shape, appearance and function. In case the decay is close to the nerve of the tooth, the dentist applies special medication after preparing the tooth and before placing the filling for protection.