The Surprising Link Between Oral Health and Overall Health

Did you know that oral health delivers benefits that go far beyond your mouth? Good oral hygiene and regular dental checkups can reduce your risk of many health conditions that affect the whole body.
How does oral health affect the rest of your body?
Your mouth is an important gateway to your overall health. Recent research has revealed a surprising truth: The health of your teeth and gums affects many systems in your body, including your heart, brain and immune system.
That's why dental conditions like gum disease (periodontitis) are now linked to broader health issues. For example, persistent bleeding gums, bad breath or jaw pain aren't always isolated problems. They could be your body's way of signaling that something more serious is going on.
Here's how your oral health affects some of these health risks.
Heart disease
Your heart and gums are more connected than you might think. Bacteria that enter your bloodstream through your mouth can cause inflammation that damages your blood vessels.
When this happens, your heart has to work harder to pump blood – increasing your risk of high blood pressure, heart attack and stroke. Treating gum disease early reduces all these risks.
Diabetes
Inflammation from gum disease can spike your blood sugar by disrupting insulin regulation. This raises your risk for type 2 diabetes.
If you have diabetes, taking good care of your mouth and teeth is especially important. High blood sugar can weaken your immune system. The result: Wounds that heal more slowly and dry mouth, making you more susceptible to oral infections.
Alzheimer's disease
Research suggests that caring for your teeth and gums may also help protect your brain. One study found that people with tooth decay or tooth loss due to severe gum disease were more likely to develop neurodegenerative disorders, such as Alzheimer's.
The reason? Harmful bacteria from gum disease may make their way to brain tissue, where they can damage nerve cells involved in memory and thinking.
Mental health conditions
Dental problems can even take a toll on your mental health. Tooth pain or decay can make it harder to eat, speak or smile comfortably.
Feeling embarrassed about your teeth may also lead you to avoid socializing. Studies have found that people with poor oral health are more likely to experience stress, anxiety and depression.
Tips for better oral health
There's a lot you can do to maintain good oral health and reduce your risk of related health issues. If you notice any changes in your mouth, see your dentist for an exam.
These are the most important ways to take care of your teeth and gums:
- Brush your teeth and tongue twice a day with fluoride toothpaste
- Remove plaque between your teeth daily, using floss, a pick or a water flosser
- Get a dental cleaning and checkup twice a year
- Address oral infections, damaged teeth and other dental issues promptly
- Wear a protective mouthguard during contact sports and other high-risk activities
The best ways to support your overall health are to:
- Eat a healthy diet, limiting foods and drinks with added sugar
- Avoid tobacco products
- Reduce alcohol consumption
- Get the HPV (human papillomavirus) vaccine to help prevent oral cancer
- Manage chronic conditions, such as diabetes and high blood pressure
Whole-person health and wellness at UCSF Health Dentistry
Managing your dental care along with your overall health can feel like a juggling act. We’re here to make it easier. Our dentists treat common and complex dental issues, and can refer you to other specialists if needed.
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