Grinding a filling may be painful, and patients who cannot tolerate it can be numbed to control the pain. When tooth tissue is damaged or a tooth is injured by an external force, a filling is needed promptly to maintain the appearance and functionality of the tooth. When a cavity is shallow and confined to the enamel of the tooth, the filling is usually painless. However, if the cavity is deeper and reaches the dentin layer, the grinding process may be sore. During filling grinding, if pain symptoms are evident, slow, slow rotation can be used to remove localized carious tissue to relieve symptoms. Dental grinding can also be performed under anesthesia. Patients should fully communicate with the doctor before choosing to have a filling, and if they have a toothache and soreness reaction, they can be anesthetized prior to the procedure in order to avoid pain during the procedure.