Can Gum Disease Spread to the Brain?

August 7, 2025

Gum disease may start in your mouth—but research shows it could have serious effects far beyond it. So, can gum disease spread to the brain?


The answer: Yes, indirectly. Studies suggest that the inflammation caused by gum disease can contribute to brain-related health issues, including memory loss and cognitive decline.


What the Science Says

According to a 2020 study published in Science Advances, researchers found that the bacteria Porphyromonas gingivalis—a major cause of gum disease—was also present in the brains of patients with Alzheimer’s. This strongly points to a possible connection between oral bacteria and neurodegenerative conditions.


Another study from the American Academy of Neurology showed that people with chronic gum disease were 70% more likely to develop Alzheimer’s disease later in life.

Dr. Stephen Dominy, lead author of one study, explained: “The presence of gum bacteria in the brain supports the idea that periodontal disease can be a risk factor for Alzheimer’s.”


Inflamed gums can allow harmful bacteria to enter the bloodstream. From there, these bacteria may travel to the brain, triggering inflammation that affects cognitive function. This process doesn't mean gum disease causes dementia directly—but it does appear to increase the risk.


Maintaining good oral hygiene and visiting your dentist regularly can significantly lower your risk. Brushing, flossing, and keeping up with professional dental cleanings are simple steps that protect both your smile and your brain.


At Schwimmer Dental, we offer comprehensive dental care in New Jersey—from emergency dental services to broken tooth repair.  We also specialize in dental implants and cosmetic dentistry to help restore your smile.


Our expert team is here to catch issues early and keep your oral health on track.


Schedule your visit today and take the first step toward a healthier future.


FAQs



  • 1. What are early signs of gum disease?

    Red, swollen gums, bleeding while brushing, and persistent bad breath are common early signs.


  • 2. Can treating gum disease improve brain health?

    While it won’t reverse existing brain damage, treating gum disease may reduce inflammation and lower long-term risks.


  • 3. How often should I see a dentist for gum health?

    Every six months is ideal—but more frequent visits may be needed if you have gum disease.


Need Assistance? We’re Here to Help

We are dedicated to enhancing your dental health and well-being.
We provide personalized dental care solutions for a confident, healthy smile.

Contact us today for Professional Dental Care.

Get Started
August 7, 2025
Bleeding when brushing? Puffy or receding gums? Discover what unhealthy gums really look like, why it matters, and how early action can protect your smile.
Three model teeth: one healthy and white, one with a large cavity, and one healthy and white.
August 7, 2025
Wondering what a dead tooth looks like? Learn the signs, causes, and when to seek dental treatment from Schwimmer Dental, your trusted NJ dental experts.