It might sound like science fiction, but new research has found a startling connection between common oral bacteria and deadly heart attacks.
Mouth bacteria found inside heart arteries
Researchers have detected bacterial DNA from the viridans group streptococci, bacteria usually found in the mouth, inside coronary artery plaque samples from patients with heart disease.
They live in dental and arterial plaque
These bacteria don’t just stay in your mouth. They thrive in plaque, forming a slimy biofilm that sticks to teeth, and, according to researchers, also inside the arteries feeding your heart.
Biofilm can turn deadly when activated
Normally, bacteria inside a biofilm are harmless. But when activated, the biofilm can break open, allowing bacteria to escape and inflame artery walls.
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This may cause plaque to rupture and trigger a heart attack.
Inflammation is the hidden danger
Doctors have long believed that inflammation is a key factor in plaque buildup and rupture.
This new study supports the theory that bacterial infections could trigger inflammatory responses leading to heart attacks.
The theory was once dismissed
About 20 years ago, the idea that bacteria contribute to heart disease was dropped after failed antibiotic trials.
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But new molecular techniques capable of detecting tiny traces of bacterial DNA have reignited scientific interest.
Your oral hygiene could be saving your heart
Brushing and flossing may do more than protect your smile.
Keeping your mouth clean could prevent bacteria from entering your bloodstream and attacking your cardiovascular system.
No vaccine yet for this bacterial threat
Unfortunately, there's no approved vaccine against strep viridans.
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And vaccines like Pneumovax or Prevnar, which target different strains of strep, won’t protect you from this one.
Untreated dental infections pose a serious risk
Infections in your mouth, if left untreated, can lead to bacteria entering the bloodstream.
Experts warn that serious dental infections may play a hidden role in heart disease and sudden cardiac death.
The mouth is connected to the whole body
Experts emphasize that the mouth isn’t an isolated system. It's a gateway to your body.
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Oral bacteria can influence systemic health, especially when they cross into the bloodstream and affect the heart.
Other vaccines still matter for heart protection
While there’s no vaccine for oral strep bacteria, staying up to date with flu, COVID-19, and pneumonia vaccines can reduce the risk of severe infections that have also been linked to cardiovascular events.
This article is based on information from Medical News Today.
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