Tooth fillings

If you have a toothache, you may require a filling. A filling replaces areas of your tooth enamel or outer layer that have decayed due to bacteria in the mouth. It's important to treat cavities, or areas of decay as soon as possible in order to prevent root infection or loss of the tooth. When your dentist determines you have a cavity your tooth and gum will be numbed by an injection of a local anesthetic. Laughing gas, or nitrous oxide, may also be used to prevent pain during the procedure. Once the tooth is numb, the dentist will use a small drill or hand piece to remove the area of decay from your tooth. The hole remaining is then filled with either a combination of several metals or a composite resin of ceramic or porcelain. The filling material is smoothed and shaped to fill the area of the tooth. Your tooth may be sensitive for the next few weeks, but if pain persists contact your dentist. Contact a dentist in your area for additional information on tooth fillings.