20, 2025) – For oral bacteria, the way to your heart is through your gums. However, DNA from harmful oral bacteria has been found in the heart muscle and valves, warranting a closer look at the pathway linking periodontitis to AFib. Porphyromonas gingivalis is of particular interest among oral bacteria. By preventing periodontitis lesions forming in the mouth, P. gingivalis is also prevented from entering the bloodstream and reaching the heart. Next, the team is planning to research P. gingivalis and its effects on heart muscle cells.