A filling is a dental restoration used to repair a damaged tooth. It is made of a material, such as amalgam, composite resin, or glass ionomer, that is placed into the cavity created by the decay. The purpose of a filling is to restore the tooth's function and prevent further decay.
While fillings are generally safe and effective, there is a small risk that they can be messed up by the dentist. This can happen for a variety of reasons, including: