A dental filling is done to restore a tooth that has been damaged by decayed or chipped due to trauma. A filling not only restores the shape of the tooth before the damage, but also works to seal the tooth in that area to help prevent further decay.
Fillings can be completed by using a few materials but by far the most popular are composite(tooth colored) or amalgam(silver colored). Composite fillings are very popular due to the fact that the filling can match the tooth's color. Amalgam, although less popular, is a stronger material that is better to fill larger cavities in teeth.
In a standard filling procedure, a dentist will start by removing any decay and soft tooth structure in the area of the needed filling. This allows the filling material to rest against hard tooth structure for a secure fit. After all the decay is removed and the filling is prepped, a dentist will then place the filling material best for your tooth. Once the filling material is done being placed, the dentist will shape the filling so that tooth looks and feels like natural tooth structure.