If a new tooth is replaced and worms appear, i.e., if the permanent tooth is suffering from caries, resin fillings, root canal treatment, etc., should be carried out according to the situation, and it is necessary to keep the tooth clean in normal times. If caries occurs again after replacing the new teeth, resin fillings should be carried out in time when the caries is mild. If the caries is serious and pulpitis occurs, root canal treatment is needed to remove the decayed tooth, infected pulp, etc., disinfect and fill the root canal, and finally perform resin fillings. In addition, you should pay attention to oral hygiene, pay attention to the correct way of brushing, drink less carbonated drinks, etc., can reduce the occurrence of dental caries. If tooth decay occurs, you should go to the hospital in time for examination and timely treatment to avoid further development.