If the tooth wear is very shallow, it does not need to be filled, if the tooth wear is serious, it needs to be filled, as follows: 1, do not need to fill: if the tooth wear is very shallow, the patient does not have subjective symptoms, do not need to fill, and do not need to do other treatment. 2, need to fill: if the tooth wear is serious, the patient has subjective symptoms, such as stuffing, tooth sensitivity, tooth If the tooth is severely worn and the patient has subjective symptoms, such as blockage, tooth sensitivity, tooth soreness, toothache, etc., it is necessary to repair the affected tooth. If there are pulp symptoms, such as toothache and tooth acidity, the pulp should be treated first, and desensitization treatment can be carried out. If the symptoms are serious and pulpitis has been produced, the pulp cannot be preserved, and pulp treatment is needed first, and then the worn place of the affected tooth can be repaired after the pulp treatment is finished.