Pulpitis does not necessarily extract the tooth, the principle of treatment is: 1, if the tooth is useful to the human body, it will be retained as far as possible, for the benefit of long-term oral health, and the set of dentures after all, is not a part of the human body, can not completely replace their own teeth; 2, if the damaged teeth have lost the use of the function of the tooth, the tooth should be extracted, to avoid an unnecessary waste of resources; 3, when the extraction of the tooth, if the patient has a “high blood pressure,” “diabetes,” and other underlying conditions, the doctor will be based on the patient’s condition to be regulated.