If the toothache of the porcelain tooth done is caused by pulpitis, root canal treatment is needed. If it is a biting pain, you should adjust and grind the crown. Porcelain teeth made toothache has more causes, need to clarify the diagnosis, choose the appropriate way to deal with. If there is no root canal treatment before having porcelain teeth, the pain is usually caused by the inflammation of the pulp after the tooth tissue has been abraded, root canal treatment should be chosen to thoroughly remove the inflamed pulp and necrotic tissues in the root canal, remove the source of infection, and then disinfect the root canal properly before filling it. If root canal treatment has been done before performing porcelain dentistry, and the tooth itself is a dead pulp tooth, and pain occurs after putting in the porcelain tooth, it is usually due to the presence of occlusal high spots on the occlusal surface of the porcelain tooth that leads to occlusal trauma, and it is necessary to regulate and grind the crown of the tooth to eliminate the jaw interference in order to alleviate the pain. For patients with toothache after having porcelain teeth, they should go to the local hospital for examination and choose the appropriate way to deal with it after clear diagnosis. It is important to develop good hygiene habits and keep the mouth clean on a daily basis.