For most of the last century, dentistry and medicine went their separate ways. Different training, different buildings, different records. The mouth was treated almost as if it belonged to someone else.
I've spent my career believing that separation was a mistake. The research is increasingly pointing the same way. But this is exactly where you should expect a dentist to be careful, so here is what the evidence does and doesn't show.
Gum disease and diabetes
This is the strongest link we have. Research consistently shows that gum disease (periodontitis) and diabetes are associated, and the relationship appears to run both ways. Poorly controlled blood sugar is linked with worse gum disease, and gum disease is linked with poorer blood sugar control.
Systematic reviews of treatment studies have found that treating gum disease in people with diabetes is associated with a modest short-term improvement in blood sugar measures. It's a real finding, but a modest one, and gum treatment is never a substitute for medical care.
I studied this link in depth for my IAOMT Fellowship review, and it's one reason I check gums so carefully.
Gum disease and the heart
Studies consistently find that people with gum disease are more likely to have cardiovascular disease. But association isn't causation. The two share risk factors, smoking for one, and the research hasn't yet shown that treating gums prevents heart attacks or strokes. Researchers are actively investigating whether the chronic inflammation of gum disease plays a role.
Other links being studied
There's emerging research on connections between oral bacteria and pregnancy outcomes, rheumatoid arthritis, some cancers and Alzheimer's disease. Some of it is intriguing. Much of it is early, and some findings haven't held up when tested further. I'd treat any headline claiming a mouth bacterium "causes" one of these with caution.
What this means for you
The encouraging part is how simple the practical side is:
-Clean between your teeth every day. Floss or interdental brushes.
-Brush twice a day, gently and thoroughly. I'm happy to talk through toothpaste choices, including fluoride-free options.
-Take bleeding gums seriously. Bleeding isn't normal, and it's worth getting checked.
-See a dentist and hygienist regularly, and tell them about your general health and medicines.
-If you have diabetes, make sure your dentist knows, and ask about your gums.
Looking after your mouth is looking after yourself. It's one of the simplest good habits there is.
A gum check with a wider lens
My Signature 18-Point Biological & Wellness Discovery includes a careful gum assessment and a proper conversation about your general health. Where gum treatment is needed, I work with a trusted periodontal colleague.
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This page is general information, not medical advice. If you have concerns about your general health, speak to your GP.
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