It was actually a patient - a retired GP no-less, that brought this new study to my attention - HOT OFF THE PRESS - FLOSSING ONCE A WEEK CAN REDUCE YOUR STROKE RISK BY 22%.
Maintaining good oral hygiene is widely recognized as essential for preventing cavities and gum disease. However, emerging research suggests that regular flossing may also play a significant role in reducing the risk of certain types of strokes and atrial fibrillation (AFib), an irregular heartbeat condition.(Healthline)
The Study: Flossing and Stroke Risk
A recent study presented at the American Stroke Association's International Stroke Conference 2025 analysed data from over 6,000 participants in the Atherosclerosis Risk in Communities (ARIC) study, spanning 25 years. Researchers found that individuals who flossed at least once a week experienced:
A 22% lower risk of ischaemic stroke. (The Sun+6Cardiovascular Business+6American Heart Association+6)
A 44% lower risk of cardioembolic stroke, where blood clots travel from the heart to the brain.(AARP+4American Heart Association+4American Academy of Periodontology+4)
A 12% lower risk of developing Atrial Fibrillation .(Cardiovascular Business+2Healthline+2New York Post+2)
These associations were independent of other oral hygiene practices such as regular brushing and dental visits, suggesting that flossing itself contributes uniquely to these health benefits. (San Francisco Chronicle+6New York Post+6American Academy of Periodontology+6)
Understanding the Connection
The link between flossing and reduced stroke risk may be attributed to the role of oral health in systemic inflammation. Poor oral hygiene can lead to gum disease, which increases inflammation levels throughout the body. Elevated inflammation is a known risk factor for atherosclerosis (hardening of the arteries) and Atrial Fibrillation, both of which can lead to stroke. By reducing oral infections and inflammation through regular flossing, individuals may decrease their risk of these cardiovascular issues. (Cardiovascular Business)
Incorporating Flossing into Your Routine
Given the potential health benefits, incorporating flossing into your regular oral care routine is a simple and cost-effective strategy. Here are some tips to get started:
Set a Reminder: Establish a daily reminder to floss, perhaps alongside your brushing routine.
Choose the Right Tools: Select floss or interdental cleaners that you find comfortable and easy to use. (American Academy of Periodontology) Thick floss, thin floss, dental tape, flossettes and floss on holders - it doesn’t matter what you use, as Dr Vickers says, whatever is the easiest - go for it.
Learn Proper Technique: Consult with your friendly Northbridge Dentist to ensure you're flossing effectively.
Be Consistent: Aim to floss at least once a week, as the study suggests benefits with this frequency.(University of South Carolina)
Conclusion
While more research is needed to fully understand the relationship between flossing and stroke risk, current findings highlight another compelling reason to prioritise oral hygiene. Regular flossing not only contributes to a healthier mouth but may also play a role in safeguarding your cardiovascular health. As always, consult with your Northbridge Dentist for personalised advice and to discuss comprehensive strategies for stroke prevention.
