When a tooth is lost due to the injuries or is affected by diseases caused by bacteria, gaps or missing tooth occurs. The gaps so formed between the teeth will make the affected person to discomfort while speaking, chewing and negative expressions. Fillings are also used to repair cracked or broken teeth and teeth that have been worn down from misuse. So, the dentist replaces or restores the tooth in the areas where tooth is lost by using some dental fillings. Before going to start filling in the decayed portion of the teeth, dentist numbs the area around the tooth and cleans the tooth surface by removing decayed material caused by bacteria with respective dental solutions. Then, an instrument is used for drying the affected area of the patient mouth in order to remove the bacteria. Then dentist checks the affected part by performing some test whether all the decay has been removed or not. Once the affected part becomes clean, the dentist prepares the necessary fillings in order to fill the affected portion to make the patients teeth to function normally. The dentist puts some liner on the tooth root to protect the nerve. Then he places tooth which matches the original one. These materials are applied in the layers to look as the original tooth. Then blue light is used for hardening each layer applied. After completing the layering process, dentist removes the excess material that comes out while applying. Then the dentist shapes the material according to the desired outcome and then polishes for final restoration.
These fillings can be done by using different materials available based on the location and extent of the decay, cost of material, dentist recommendation etc,. Materials such as gold, porcelain, silver amalgam, or tooth-colored, plastic and glass materials called composite resin fillings can be used to store the tooth and it prevents further tooth decay.