What is Interleukin-6?
Interleukin-6 (IL-6) is a cytokine — a signaling protein produced by immune cells in response to infection or tissue damage. In the oral cavity, elevated IL-6 indicates that the immune system is actively responding to a bacterial challenge.
Why It Matters
IL-6 drives the acute inflammatory response that, when sustained chronically, leads to tissue destruction and bone loss. Elevated salivary IL-6 is a reliable indicator of periodontal inflammation and has been linked to systemic inflammatory conditions.
What Elevated Levels Mean
Elevated IL-6 indicates active inflammation in the oral tissues. This may reflect an ongoing bacterial infection, tissue injury, or a heightened immune response. When combined with elevated pathogen levels, it confirms active periodontal disease.
What To Do Next
Your provider will address the underlying cause of inflammation — typically bacterial infection. Reducing the pathogen load through treatment should bring IL-6 levels down. Retesting can confirm resolution.
Related Biomarkers
Interleukin-1 beta
A key inflammatory mediator that triggers bone resorption in periodontal disease.
High-Sensitivity C-Reactive Protein
A systemic inflammation marker that links oral health to overall health.
Porphyromonas gingivalis
A key "red complex" bacterium strongly linked to severe periodontal disease.
This information is for educational purposes only and does not constitute medical advice. Always consult your dental provider for interpretation of your specific results.