Study links periodontal disease to autoimmune disease and all-cause mortality
Periodontal disease may be associated with wider systemic inflammatory and immune-related health risks, according to a new population-based study by researchers at King’s College London. The study examined the relationship between periodontal disease and autoimmune disease, as well as the combined association of both conditions with all-cause mortality during follow-up. The findings add to existing evidence linking periodontal health with systemic disease and suggest that periodontal disease may serve as a clinically relevant indicator of broader health vulnerability, particularly when it occurs alongside autoimmune disease.
The study included 11,739 participants from the US and 433,023 participants from the UK. The researchers found that autoimmune diseases were more common among individuals with periodontal disease, particularly among edentulous people. Autoimmune disease was associated with higher all-cause mortality, and this risk further increased when periodontal disease was also present.
Lead author Dr Ke Zhou said: “This does not mean that periodontal disease directly causes autoimmune disease or death, but it does suggest that oral health may provide useful insight into a person’s general health status”. Dr Zhou said that the findings should be viewed in the context of established research on periodontal inflammation and systemic health and noted that periodontal disease may be connected to broader patterns of immune imbalance.
For dentistry, the findings reinforce the value of periodontal assessment as part of a broader understanding of patient health. The findings may be particularly relevant for patients with autoimmune disease, who may already have a higher inflammatory burden.
The study was published online in the Periodontology Journal.
