Dental Neglect Linked to Nearly Doubled Stroke Risk, New Research Shows
PARIS – A concerning new study reveals individuals grappling with both cavities and gum disease face almost double the risk of stroke compared to those maintaining good oral health. Published October 22, 2025, in Neurology, the research adds to a growing body of evidence highlighting a significant connection between dental hygiene and cardiovascular health.
The study, led by neurologist Dr.Souvik Sen, builds upon previous findings linking specific oral conditions to increased stroke incidence. A 2023 report in the journal Stroke demonstrated that people with cavities had a 40% increased risk of stroke. Further research the same year, published in PubMed, indicated that moderate and severe periodontitis elevated stroke risk by 1.7 and 2.5 times,respectively.
Dr. Sen emphasizes the broader implications of these findings: “This study reinforces the idea that taking care of your teeth and gums is not just about smiling: it could also protect the brain.” He urges individuals exhibiting signs of gum disease or cavities to seek treatment, not only for dental preservation but also for potential stroke risk reduction.
The research also points to the preventative power of regular dental care. Individuals who routinely visit a dentist are 81% less likely to develop both gum disease and cavities. Another study, published in Stroke in 2017, showed regular dental care can reduce stroke risk by 23%.
Experts recommend a proactive approach to oral health, including a diet low in sugar, avoidance of tobacco, brushing at least twice daily for two minutes, and consistent use of dental floss or interdental brushes, alongside annual dental check-ups.
