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When it comes to reducing stroke risk, we often focus on the usual suspects: blood pressure, diet, exercise, and smoking. But, according to Dr Huzaifa Ezi, Consultant Prosthodontist and Implantologist, Saifee Hospital Mumbai, there is a new player in town, and it is hidden in plain sight – your oral health. Read this also Are you skipping brushing your teeth for 2 minutes twice a day? Dentist explains why it’s important, shares the right way to do it
In an interview with HT Lifestyle, Dr Izzy highlighted that oral health is not just about preserving your smile – it is about protecting your heart, brain and life. Research shows that gum disease and cavities may be linked to a higher risk of stroke, making regular dental care a potential game-changer.
Gum disease and stroke: what’s the connection?
Dr. Izzi explains, “When we think about stroke prevention, we often consider controlling blood pressure, maintaining a healthy diet, exercising regularly, and avoiding smoking. However, there is an emerging area of medical research that highlights an unexpected but important factor: oral health. The condition of your gums and teeth may be more related to stroke risk than you might think. Growing evidence suggests that treating cavities and periodontal disease can be more than just improving your smile. It may also play a role in reducing the chance of developing stroke-related complications.”
Dr. Izzi said poor oral hygiene allows bacteria to enter the bloodstream, causing inflammation and damage to blood vessels. He said this could limit blood flow to the brain and increase the risk of stroke. Studies show that people with severe gum disease are almost twice as likely to suffer cardiovascular events, including stroke, he said.
How does oral health affect overall health?
“Oral health and systemic health are closely interconnected. The mouth serves as the entry point into the body’s circulatory system, and poor oral hygiene allows harmful bacteria to thrive. In cases of gum disease or untreated cavities, bacteria can enter the bloodstream, causing inflammation to spread to other parts of the body. This chronic, low-grade inflammation can damage the lining of blood vessels, leading to the formation of plaque inside the arteries. can promote the formation of clots, a process known as atherosclerosis. Over time, this can restrict blood flow to the brain and increase the risk of clots, which is one of the leading causes of ischemic stroke,” Dr. Izzy said.
Dr. Izzy said certain bacteria can attack artery walls, causing them to become thicker and less elastic — increasing blood pressure and increasing the risk of blood vessel blockage. He said, “Studies have shown that people with severe gum disease are almost twice as likely to suffer cardiovascular events, including stroke, than people with healthy gums. Researchers believe that certain bacteria, such as Porphyromonas gingivalis, which is commonly found in advanced periodontal infection, may directly invade artery walls, causing them to become thicker and less elastic.”
He added, “This not only increases blood pressure, but also increases the risk of blood vessel blockage. Additionally, these bacteria can trigger the body’s immune system to release inflammatory chemicals, which can cause further damage to the vascular system.”
Dr. Izzi shared that people who neglect oral hygiene often have other stroke risk factors, such as smoking, poor diet and lack of physical activity – maintaining good oral health can indirectly improve overall health behaviors.
He added, “Another important connection between oral health and stroke lies in lifestyle habits. People who neglect their oral hygiene often have other overlapping risk factors such as smoking, poor diet, high stress levels, or lack of physical activity – all of which independently increase the chances of stroke. Therefore, maintaining good oral health may indirectly help improve overall health behaviors that protect the heart and brain.”
Reducing stroke risk with oral care
According to Dr. Izzi, the good news is that this risk is largely preventable. “Regular dental care, such as brushing twice a day with fluoride toothpaste, flossing and visiting the dentist regularly, can significantly reduce the bacterial load in the mouth and prevent gum inflammation. Treating existing cavities or periodontal disease prevents bacteria from spreading into the bloodstream and helps reduce systemic inflammation. Over time, this reduces stress on the circulatory system, supporting healthy arteries. and may reduce the chance of stroke-related complications,” Dr. Izzi said.
“Although more research is ongoing to fully establish the causal relationship between oral health and stroke prevention, this connection is strong enough to draw attention. The mouth is, after all, a reflection of one’s overall health. Ignoring bleeding gums or tooth decay not only impacts your dental health; it can also silently increase your risk of life-threatening vascular problems. Therefore, taking care of your oral health is more than just maintaining a confident smile. It’s not about protecting yourself – it’s about protecting your heart, your brain and your life,” Dr. Izzy concluded.
Note to readers: This article is for informational purposes only and is not a substitute for professional medical advice. Always seek the advice of your doctor with any questions you may have about a medical condition.
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