On the question of whether it is good to live pulp or dead pulp when porcelain restoration, there are different views in the restorative dentistry clinic, but in recent years tends to the following views: 1, if the affected tooth is still live pulp after the completion of treatment in other departments, can first not kill the pulp, direct porcelain tooth preparation. 2, if the porcelain restoration treatment process has been kept alive pulp 1, and no symptoms of pulp inflammation, can live pulp bonding restorations, the prognosis is better 2, the symptoms of pulp inflammation, you must first perfect root canal filling treatment, after the basic disappearance of the root filling reaction and then bonding restorations, the prognosis is also better 3, for the location of anomalies or teeth with a large degree of abnormal long extraction direction can be based on cosmetic needs in advance Pulp killing Because of the pulp killing and perfect root canal treatment after the tooth does not have the risk of pulpitis after porcelain restoration, if the patient himself, can also be killed first and then restoration. The reason and treatment of bad breath after porcelain crown restoration 1.The “stench of waste water” described by you is probably the smell of food residue and necrotic tooth tissue in saliva, which is a kind of halitosis, usually occurs when the tooth has a more serious decay 2.To clarify whether this symptom is caused by porcelain If you find that the edge of porcelain crown is not tightly fitted and there is an obvious gap, it is recommended to consult with your doctor, remove the bad restoration, remove the necrotic tooth We suggest you to consult with your doctor to remove the defective restoration and remove the necrotic tissue for restoration. What do you need to pay attention to after making a porcelain crown? 1, strictly maintain oral hygiene 2, avoid using the tooth to chew too hard food 3, find discomfort timely consultation, timely treatment It should be said that the doctor’s production and the patient’s close cooperation at the same time determine the service life of the porcelain crown.