29/07/2026
People with both cavities and gum disease were 86% more likely to experience an ischemic stroke than those with healthy mouths, according to a 20-year study involving nearly 6,000 adults. They also had a higher risk of major cardiovascular events.
Researchers believe chronic inflammation and harmful oral bacteria may contribute to changes in blood vessel health over time. These findings add to growing evidence that oral health is closely linked to overall health, although more research is needed to better understand the underlying biological mechanisms.
The takeaway: Preventing cavities and gum disease isn't just about protecting teeth. Brushing twice a day with fluoride toothpaste, cleaning between the teeth daily, limiting sugary foods and drinks, and having regular dental check-ups may help support both oral health and overall health.
Important: This study found an association, meaning it does not prove that cavities or gum disease directly cause stroke.
📄Reference:
Wood S, et al. Combined Influence of Dental Caries and Periodontal Disease on Ischemic Stroke Risk. Neurology Open Access. 2025. DOI: 10.1212/WN9.0000000000000036.