Research status of the relationship between periodontitis and systemic disease

Periodontitis is a common infectious disease that is harmful to human oral health and is the main cause of tooth loss. Periodontal inflammation can damage the integrity of the epithelium, causing periodontal pathogens to spread to the systemic circulation, and the periodontal pocket contains a large number of inflammatory mediators, especially those related to chronic inflammation, such as tumor necrosis factor-α, interleukins and prostaglandins, which will enter the blood circulation system from periodontal pocket and cause systemic inflammatory response. Periodontitis is closely related to the occurrence and development of systemic diseases, including cardiovascular, endocrine, respiratory, immune, and nervous systems. Inflammatory responses and inflammatory factors may be the mechanism of the association between periodontitis and multiple systemic diseases. This article reviews the current research on the relationship between periodontitis and systemic disease.