Symptoms of pain after a filling should be followed up in time and the doctor should be asked to make a judgment as to whether the pulp is damaged or inspired pain due to the cavity being too deep and close to the nerve, due to the pressure of the filling on the pulp cavity after the filling is made. The doctor will take the inevitable treatment measures according to the patient’s symptoms. If the pain is severe and appears to be worsened by nighttime pain and spontaneous pain, root canal treatment of the tooth is necessary. Usually, the pain is only mild or in bursts, and it is recommended that the patient should follow up promptly. After the doctor removes the filling, if the patient has some relief, he or she can take a sealant treatment, and after calming the nerve for a period of time, the filling treatment can be performed without any pain.