Can Gum Disease Affect Your Overall Health?
Most of us are aware that poor dental hygiene can lead to tooth decay, gum disease and bad breath - but not brushing your teeth could also have consequences for more serious illnesses.
Gum disease is linked with several conditions elsewhere in the body, including heart disease, diabetes, some cancers and Alzheimer's disease. For most of these, the research shows the conditions tend to occur together, not that gum disease causes them. Diabetes is the clearest two-way relationship. For the others, the honest answer is that we don't yet know whether treating your gums changes your risk, so treat gum disease because it damages your mouth, and keep up your medical care for everything else.
What is gum disease?
Gum disease begins as gingivitis: gums that are red, puffy and bleed when you brush. If plaque stays under the gumline, it can progress to periodontitis, a long-term infection and inflammation that destroys the bone holding the teeth. About 4 in 10 US adults aged 30 and older have some level of periodontitis. Smoking and diabetes are two of the strongest risk factors. [1]
Because inflamed gums bleed easily, mouth bacteria can enter the bloodstream briefly during brushing or chewing. That, along with long-term inflammation, is why researchers have looked for connections between oral health and overall health.
Is gum disease linked to heart disease?
People with gum disease have higher rates of heart attack, stroke and other atherosclerotic disease. In 2012, the American Heart Association reviewed the evidence and concluded that the association is real and holds up after accounting for known shared risk factors. It also concluded that the evidence does not show that gum disease causes heart disease, and that there is no evidence gum treatment prevents heart disease or changes its outcome. [2]
Smoking, age and diabetes raise the risk of both conditions, which explains part of the overlap. The practical message from the AHA statement is to treat gum disease for its own sake and not to treat it as a heart-disease prevention strategy.
What about diabetes?
This is the strongest connection. High blood sugar makes gum disease more likely and more severe, and severe gum disease can make blood sugar harder to control. [3] A large Korean study also found that people who brushed three or more times a day were somewhat less likely to develop diabetes over ten years. [6] Read more in our post on brushing your teeth and diabetes risk.
Is gum disease linked to cancer?
Several large studies have found modest links between a history of gum disease and certain cancers.
Pancreatic cancer. A Harvard study of more than 51,000 men found about 64% higher pancreatic cancer risk in men who reported gum disease. The authors said the finding needed confirmation. [4]
Cancer in older women. A study of nearly 66,000 postmenopausal women found about 14% higher overall cancer risk. See gum disease and cancer risk in older women.
Stomach and esophageal cancer. See gum disease and stomach or esophageal cancer.
All of these are observational studies. None shows that treating gum disease lowers cancer risk.
Is gum disease linked to Alzheimer's disease?
Researchers have found the gum-disease bacterium Porphyromonas gingivalis and its enzymes in brain tissue from some people with Alzheimer's disease, and mouse studies suggest the bacterium can reach the brain. [5] This is early-stage research. It has not been shown that gum disease causes Alzheimer's or that gum treatment prevents it.
How can you protect your gums?
Brush twice a day with fluoride toothpaste and clean between your teeth once a day.
Don't smoke or vape.
If you have diabetes, work with your physician to keep blood sugar in your target range.
See a dentist regularly. Gum disease is usually painless until it is advanced, so a professional exam is how it is found.
Tell your dentist about your health conditions and medications.
Where can you get your gums checked in Jacksonville?
A comprehensive dental exam at our office includes measuring the gum pockets around each tooth and reviewing your medical history. Contact us or call 904-398-1549 to schedule.
Sources
Centers for Disease Control and Prevention. Gum (periodontal) disease. Retrieved October 6, 2026.
Lockhart PB, Bolger AF, Papapanou PN, et al. Periodontal disease and atherosclerotic vascular disease: does the evidence support an independent association? A scientific statement from the American Heart Association. Circulation. 2012;125(20):2520-2544. doi:10.1161/CIR.0b013e31825719f3 (retrieved via PubMed)
National Institute of Diabetes and Digestive and Kidney Diseases. Diabetes, gum disease and other dental problems.
Michaud DS, Joshipura K, Giovannucci E, Fuchs CS. A prospective study of periodontal disease and pancreatic cancer in US male health professionals. J Natl Cancer Inst. 2007;99(2):171-175. doi:10.1093/jnci/djk021 (retrieved via PubMed)
Dominy SS, Lynch C, Ermini F, et al. Porphyromonas gingivalis in Alzheimer's disease brains: evidence for disease causation and treatment with small-molecule inhibitors. Sci Adv. 2019;5(1):eaau3333. doi:10.1126/sciadv.aau3333 (retrieved via PubMed)
Chang Y, Lee JS, Lee KJ, Woo HG, Song TJ. Improved oral hygiene is associated with decreased risk of new-onset diabetes: a nationwide population-based cohort study. Diabetologia. 2020;63(5):924-933. doi:10.1007/s00125-020-05112-9 (retrieved via PubMed)
About the author. CJ Henley, DMD, is a general dentist in Jacksonville whose practice focuses on cosmetic and restorative dentistry, dental implants and dental care around head and neck cancer. Meet Dr. Henley.
CJ Henley, DMD, PA · 3675 Hendricks Avenue, Jacksonville, FL 32207 · 904-398-1549
Updated October 2026.
An Escape to the Dentist? A Wall Street Journal Story on Parents' Alone Time
Peter J. Strauss’s life as an attorney, speaker and single father of four children ages 1 to 10 leaves him little time for himself.
He catches a break in a place most people try to avoid: “I love going to the dentist,” says Mr. Strauss, of Hilton Head Island, S.C. “It’s 45 minutes when I know nobody is going to interrupt me. You can’t reach me and you can’t ask for anything,” says Mr. Strauss, author of a book on self-insurance for businesses. Although he has perfect teeth, he gets them cleaned three times a year instead of the usual two. The visits are so dull that he sometimes falls asleep in the chair.
We shared this article in early 2018. In February 2018, The Wall Street Journal published a feature on the creative ways busy parents find a little time to themselves. One father described his dental cleanings as a rare stretch of time when no one could interrupt him, and he admitted to sometimes dozing off in the chair.
We are glad to hear it. Our goal is for every visit to feel calm and unhurried.
Read the full article at The Wall Street Journal (subscription may be required).
To schedule a visit, please contact our office.
About the author. CJ Henley, DMD, is a general dentist in Jacksonville whose practice focuses on cosmetic and restorative dentistry, dental implants and dental care around head and neck cancer. Meet Dr. Henley.
CJ Henley, DMD, PA · 3675 Hendricks Avenue, Jacksonville, FL 32207 · 904-398-1549
Updated October 2026.
Sources
The Wall Street Journal, An Escape to the Dentist? Parents Confess Their Secret Ways to Get Alone Time, February 2018.