Whether periodontitis needs to be extracted should be judged according to the condition of the teeth. Clinical periodontitis need to observe the individual teeth, if only the appearance of periodontitis, and did not produce obvious tooth loosening, damage and so on, generally do not have to remove the teeth, you can use drugs such as metronidazole under the guidance of the doctor, and basic periodontal treatment, can relieve the inflammation. If the periodontitis situation is more serious, alveolar bone resorption has been more than half, there is more obvious gum recession and other situations, and accompanied by tooth loosening, then you may need to carry out anti-inflammatory treatment, and then remove the teeth. Normally, you need to observe your teeth more often, and if there is any abnormal reaction, it is best to actively consult a doctor for examination and treatment.