How the “Bad” Bacteria in the Mouth Can Lead To Serious Health Problems

Posted on Aug 08, 2023 by William J. Claiborne, DDS MS

The human body is a fascinating structure. It seems every year there are new findings that show just how complex and amazing it is.

Recently, one of the biggest areas of interest has been the study of microbiome in the body. Once thought to be icky little cesspools, these colonies of microorganisms are now seen as having an important role in our health. For example, the microbiome in the gut has been shown to aid in digestion and it’s now seen that skin microbiome may potentially help people overcome conditions like acne and eczema.

As a periodontist, I’ve followed research in how microbiome is being recognized for having a positive role in oral health. While bacteria that convert sugar to acid are the driving force behind tooth decay, this means that those critters in our mouths are not always bad guys.

There are about 700 different species of bacteria in your mouth. Some can be “bad,” yet the good bacteria are able to give our overall health a “leg up” in certain regards.

Certainly, having a clean, healthy mouth helps to prevent cavities and periodontal (gum) disease. However, read on to learn how the health of your mouth can contribute to your overall health to a rather significant extent.

Over the years, numerous studies have been able to pinpoint how diseases – such as heart disease, diabetes, arthritis, and more – might be triggered. The “trigger” seems to consistently link back to internal inflammation.

Inflammation in the body has been shown to set actions into play that cause the onset or worsening of a wide variety of health problems. Periodontal (gum) disease is a chronic inflammatory disease. This means the bacteria attacking gum tissues are in a consistently active state.

When the bacteria of gum disease enter the bloodstream (through tears in weakened gum tissues), it can create inflammatory triggers far beyond the mouth. This bloodborne inflammation, in turn, results in higher risks for heart disease, stroke, diabetes, preterm babies, arthritis, respiratory diseases and even impotency.

How can this occur?

In chronic inflammation, the body’s defense mechanism becomes stuck in the ‘on’ position. This sets off a chain of reactions that alter the helpful response of the immune to a harmful one. When an area in the body stays in an inflammatory setting, damaging reactions can occur.

Once in the bloodstream, several species of harmful gum disease bacteria can add to existing inflammation, including that in the arteries, where it can lead to heart attack and stroke.

In one study of 265 stroke patients, researchers found that patients with gum disease had twice as many strokes (due to thickening and hardening of brain arteries) as patients without. Additionally, patients with gum disease were three times as likely to have a stroke involving blood vessels in the back of the brain, which controls vision, coordination and other functions.

In a separate study of over 1,100 patients who had not experienced a stroke, researchers noted that 10% had severely blocked brain arteries. They also found that patients with gum inflammation were twice as likely to have moderately severe narrowing of brain arteries.

Another example is in the similarities between tissues of gum disease and those taken from arthritic joints. Studies show that gum disease is not only a risk factor for arthritis (both are inflammatory diseases), one can contribute to the other. Thus, gum disease is a risk factor for developing RA and arthritic patients have a greater risk for gum disease.

Additionally, people with diabetes are more likely to have periodontal disease than people without it, likely because they’re more susceptible to contracting infections overall, according to the American Academy of Periodontology.

Studies also show that pregnant women with periodontal disease have a greater risk of having pre-term and low birth weight babies. These indications have been found in amniotic fluid and in fetal cord blood samples of infants.

Findings show, too, that the bacteria of periodontal disease may contribute to a higher risk of pancreatic cancer. For years, researchers at the National Cancer Institute and the American Cancer Society have conducted cancer prevention and screening studies.

By studying oral samples, notably higher levels of two types of oral bacteria were measured in study participants with pancreatic cancer. One oral bacteria was found to create a 50% increased risk for pancreatic cancer and the second oral bacteria led to a 59% greater likelihood.

Chronic inflammation, in any area of the body, is a health risk that poses severe health challenges now highly recognized in the medical field. Not surprisingly, we occasionally see patients who have been advised by their surgeons to have their gum health checked prior to surgery. This proactive measure is to reduce risk factors that could complicate surgical outcome.

Your body’s natural defenses along with good oral hygiene — such as daily brushing and flossing — helps to keep bacteria under control. Also, people should readily recognize the signs and symptoms of periodontal disease.

Healthy gums fit snugly around the base of teeth and be a light pink color. Although the initial stage of gum disease (gingivitis) may exist without obvious symptoms, common signs of gum disease include:

• Swollen or puffy gums
• Bright red or purplish gums
• Gums that feel tender or bleed easily
• Spitting out blood when brushing or flossing
• Frequent or persistent bad breath
• Pus pockets between some teeth and gums
• Loose teeth or a change in the way teeth fit
• Painful chewing
• Gums that pull away from teeth or are sensitive to heat and/or cold

Maintaining good at-home oral hygiene is easy and takes just minutes a day. Brush twice a day (two minutes each time) and floss daily. Drink plenty of plain water throughout the day and limit sugar. Have dental cleanings every six months and follow your dental hygienist’s recommendations to keep oral bacteria at minimal levels between visits.

If you suspect you have gum disease or have delayed (or avoided) having regular dental care, call our Asheville periodontal dental office to schedule an examination. Or, ask to begin with a consultation appointment. During this time, we can discuss any concerns and I’ll answer your questions. Call 828-274-9440.

Let’s help you achieve a healthy, confident smile that adds to the well-being of your overall health!

Sources:

https://www.jnj.com/innovation/4-things-scientists-know-about-the-bacteria-in-your-mouth

https://www.nih.gov/news-events/nih-research-matters/identifying-new-contributor-tooth-decay

https://pubmed.ncbi.nlm.nih.gov/26474422/

https://www.reuters.com/article/us-health-periodontitis-erectile-dysfunc/chronic-gum-disease-tied-to-risk-of-erectile-dysfunction-idUSKBN13K1UP

http://www.health.harvard.edu/press_releases/heart-disease-oral-health

https://www.cancer.org/research/cancer-facts-statistics.html