Periodontitis is mainly chronic inflammation of periodontal support tissue caused by local factors. The age of onset is more common after 35 years of age. If phlegm is not treated in time, inflammation can progress to periodontitis by spreading the gums deep into the periodontal ligament, alveolar bone and cementum. Because it has no obvious symptoms in the early stage, it is easy to be neglected, and it is already serious when the symptoms are present, and even the teeth cannot be retained. Therefore, it is necessary to strengthen the mission to enable patients to see early and timely treatment. ...