Sore porcelain teeth need to go to the hospital to check whether the bonding agent is loose or the tooth has symptoms of pulpitis, according to the situation to consider re-bonding or temporary observation. 1. Loosening of adhesive: Soreness of porcelain teeth is generally due to dentin sensitivity after tooth preparation, the adhesive between porcelain crowns and natural teeth is loose, external saliva into the gap caused by dentin sensitivity, generally check to confirm the removal of porcelain crowns can be re-bonded. 2. The emergence of pulpitis symptoms: after doing porcelain teeth soreness may also be the emergence of reversible pulpitis, general temporary observation, if the symptoms worsened or no improvement, the need to remove the braces for medication to pacify the treatment or root canal treatment. Do porcelain teeth sore, it is recommended to go to the hospital as soon as possible to check the timely treatment, so as not to develop into pulpitis.