Oral Hygiene Key to Heart Health: New Research Links Gum Disease to Cardiac Risk

October 1, 2025
Oral Hygiene Key to Heart Health: New Research Links Gum Disease to Cardiac Risk
  • Maintaining good oral hygiene through regular brushing, flossing, and dental checkups is essential, as it helps reduce the risk of heart disease by preventing gum infections and inflammation.

  • Research shows a strong link between gum inflammation, periodontal disease, and cardiovascular risk, since oral bacteria can enter the bloodstream and contribute to artery blockages.

  • Analysis of coronary plaque from patients who suffered sudden cardiac death or underwent artery-cleaning surgery revealed bacteria in 66% and 58% of samples, predominantly oral Viridians streptococci.

  • Researchers in Finland have identified a link between the mouth and gut bacteria, specifically Viridians streptococci, and the development of heart disease, the world's leading cause of death.

  • Studies have found bacteria in over 40% of plaque samples from individuals who died of heart attacks or had plaque removal surgery, often existing as dormant biofilms within arterial walls that evade immune detection.

  • These findings suggest that future efforts might focus on developing vaccines targeting bacterial biofilm formation to prevent bacterial-induced thrombosis associated with heart disease.

  • Vulnerable groups include older adults, people with chronic conditions like diabetes and high blood pressure, smokers, and those with limited access to dental care or lower income levels.

  • Adopting healthy lifestyle choices such as a balanced diet, quitting smoking, and reducing alcohol intake can further support both oral and cardiovascular health.

  • When oral bacteria become activated, especially in immunocompromised individuals, they can cause inflammation and blood clots, which may lead to heart attacks by lodging in coronary arteries.

Summary based on 4 sources


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