Dental Filling Procedure
How dental fillings are placed to restore teeth affected by decay.
A dental filling procedure begins with numbing the area around the affected tooth with local anesthesia. The dentist removes the decayed tooth structure using a dental drill or laser, then cleans the cavity to eliminate bacteria and debris. The prepared cavity is shaped to receive the filling material and provide optimal retention. For composite resin fillings, the tooth is etched with an acid gel to create a rough surface for bonding. A bonding agent is applied and cured with a light. The composite material is placed in layers, with each layer cured by a special light. The filling is then shaped and polished to match the natural tooth contours and bite. Different filling materials are available depending on the location and size of the cavity. Tooth-colored composite resin is most popular for visible teeth, while amalgam remains an option for posterior teeth requiring durability. Glass ionomer fillings release fluoride and are used in specific situations. Proper oral hygiene and regular dental visits help prevent the need for additional fillings.