American Heart Month: Compelling Connections Between Oral Health and Stroke Risk

February is American Heart Month, which raises awareness about the number one killer of people in the U.S.: cardiovascular disease. Did you know that maintaining good oral hygiene is not only essential for preventing dental issues but also plays a crucial role in reducing the risk of heart disease and stroke? 

Research has found that individuals with poor oral health are at increased risk for cardiovascular events, with experts theorizing that bacteria in the mouth may travel through the blood vessels and cause inflammation. Two new studies presented at the American Stroke Association's International Stroke Conference (February 5-7, 2025, in Los Angeles) found new compelling connections between oral health and stroke risk. 

The Link Between Flossing and Stroke Prevention 

One study found that flossing your teeth at least once a week was linked to a lower risk of stroke. 

  • The survey followed more than 6,000 people over 25 years 
  • Flossing was associated with a 22% lower risk of ischemic stroke and a 44% decrease in the risk of cardioembolic stroke 
  • Flossing was also associated with a 12% lower risk of atrial fibrillation (AFib) 

Harmful Bacteria and Increased Stroke Risk 

Another study focused on the bacterium Streptococcus anginosus, which is commonly found in the mouth and gut. Researchers found stroke patients (within two years of their stroke survival) with a significant amount of the bacterium in their gut were more likely to experience adverse outcomes, including death or recurrent major cardiovascular events, than stroke patients without these bacteria in their gut. 

The researchers theorize that individuals could be tested for the bacterium to evaluate stroke risk. In addition, these bacteria could be targeted with treatment to reduce risk. 

Our Expert’s Take 

Benevis has advocated for renewed focus on the important connections between oral health and overall health.  

“These new insights highlighting the connections between oral health and stroke reinforce our mission to increase access to high-quality oral healthcare for underserved communities as it impacts them far beyond their smile,” said Dr. Amber Goode, District Dental Director at Franklin Dental & Braces, a Benevis practice in Georgia. 

Dr. Goode’s Tips for Incorporating Dental Care 

  • Floss Regularly: Aim to floss once a day to remove plaque and food particles between teeth.   
  • Brush Twice Daily: Use fluoride toothpaste to brush your teeth in the morning and before bedtime. 
  • Maintain a Balanced Diet: Limit sugary snacks and beverages that can contribute to tooth decay. 
  • Stay Hydrated: Drinking water helps wash away food particles and stimulates saliva production, which neutralizes acids in the mouth. 
  • Schedule Regular Dental Check-Ups: Regular visits to the dentist can help identify and address oral health issues before they become more serious. 

By adopting consistent oral hygiene practices, individuals can take proactive steps toward improving both their dental and cardiovascular health. 

To make an appointment with a dental provider, look for a Benevis-supported location near you at https://benevis.com/locations/.