After installing a porcelain tooth and toothache is considered to be the top of the porcelain crown rough, edge too long and other factors, but also may be triggered by apical periapical inflammation. After the installation of porcelain teeth, if not handled properly porcelain teeth, the top of the crown roughness may lead to food soft dirt retention, bacterial growth of inflammation, so there will be pain symptoms, the need for timely rinsing of gum pockets, but also under the guidance of the doctor to use metronidazole and other medication. If the porcelain teeth placed in the process of teeth edge too long may also cause irritation to the teeth, gums red, swollen, painful symptoms, the need for timely polishing and grinding. Some patients installed porcelain teeth after the gums a large number of inflammatory secretions gathered, apical periodontitis, may irritate the teeth lead to swelling of the gums, the need for timely root canal treatment.