Dental filling is an effective dental treatment method used to repair teeth by filling the loss of teeth due to decay or injury. Various materials such as composite resin, amalgam, gold or ceramic can be used as filling material. The dentist selects the most suitable filling material according to the patient's tooth structure and needs and applies the treatment. In this way, tooth decay and damage are corrected, pain and sensitivity are relieved and the former function and aesthetics of the teeth are restored. The treatment is usually painless and completed in a short time, so patients can quickly return to their daily lives. Dental fillings are a common and effective solution for maintaining and restoring the health of teeth.