You may need dental fillings if you have cavities, which are areas of decay on your teeth caused by bacteria. Cavities can develop when plaque, a sticky film of bacteria, builds up on your teeth and combines with sugars and acids from the foods you eat. The bacteria in plaque produce acids that can soften the enamel, the outer layer of your teeth, leading to the formation of cavities.
If cavities are not treated, they can continue to grow and eventually reach the inner layers of the tooth, including the dentin and pulp. This can cause pain, infection, and damage to the tooth structure. Dental fillings are used to remove the decayed part of the tooth and fill in the cavity to restore the tooth’s shape and function.
In addition to treating cavities, dental fillings may also be used to repair teeth that are cracked, broken, or worn down. Fillings can help the tooth to prevent further damage. Your dentist will recommend dental fillings if they determine that they are necessary to restore and protect your teeth.