The main concern of most patients is whether periodontitis can be completely cured. The treatment goal of periodontitis in the elderly is to control and eliminate inflammation, restore the physiological shape of periodontal tissues as much as possible, restore the function of periodontal tissues, maintain the long-term efficacy and prevent recurrence. However, the restoration of completely healthy periodontal tissues cannot be achieved because the regeneration of periodontal tissues is difficult and is an international problem, and the age-related changes in the periodontal tissues of the elderly increase the difficulty of periodontal tissue regeneration even more. Through treatment, it is possible to stabilize the current state of periodontal tissues, preserve teeth as much as possible, and prolong the use of teeth. For teeth that cannot be preserved, they need to be extracted in time so that the alveolar bone can be preserved as much as possible, laying a good foundation for subsequent restorative treatments as well as implant treatments.