Flossing Once a Week May Lower Stroke Risk, New Study Suggests
Recent research indicates that incorporating a simple dental hygiene habit of flossing once a week could potentially reduce the risk of stroke caused by blood clots or irregular heartbeats. The preliminary study, scheduled to be presented at the American Stroke Association’s International Stroke Conference in Los Angeles from February 5-7, 2025, sheds light on the unexpected connection between oral health practices and stroke prevention.
Dr. Souvik Sen, the lead author of the study from the University of South Carolina School of Medicine, highlighted the widespread impact of oral diseases, such as untreated tooth decay and gum disease, affecting billions of people globally. The study aimed to investigate which oral hygiene behaviour – flossing, brushing, or regular dental check-ups – has the most significant influence on preventing strokes.
The Atherosclerosis Risk in Communities (ARIC) study, involving over 6,000 participants, focused on the at-home use of dental floss through detailed questionnaires. The results revealed that participants who reported flossing showed a lower risk of ischemic stroke, cardioembolic stroke, and atrial fibrillation. Interestingly, these risk reductions were independent of other oral hygiene practices like brushing and dental visits.
The study also found a correlation between flossing and a decreased likelihood of developing cavities and periodontal disease. Researchers were particularly surprised by the association between flossing and a reduced risk of atrial fibrillation, a common type of irregular heartbeat that can lead to severe complications like stroke and heart failure.
Despite the promising findings, the study does have limitations as it was primarily based on questionnaire responses and focused on short-term stroke and heart outcomes. Further research is needed to explore the long-term effects of flossing and other oral health behaviours on stroke risks.
In conclusion, this study underlines the potential impact of simple dental hygiene habits, like flossing, on reducing the risk of strokes. It suggests that maintaining good oral health could play a significant role in promoting overall well-being and preventing serious health conditions like stroke. Incorporating flossing into a weekly routine could be a cost-effective and accessible way to enhance oral hygiene and potentially lower the risk of stroke.