A dental filling is a common dental treatment used to repair a tooth that has been damaged by decay, cracks, or minor fractures. In this procedure, the dentist removes the decayed part of the tooth and fills the cavity with a special material to restore the tooth’s normal shape, strength, and function. Dental fillings help stop the progression of tooth decay, relieve pain or sensitivity, and allow the tooth to be used normally for chewing. Different types of filling materials are available, and the choice depends on durability, appearance, cost, and the location of the tooth.