Oral Bacteria from Gum Disease Can Cause Ailments Elsewhere in the
Body

In
one person's mouth, the number of bacteria can easily exceed the
number of people who live on Earth. This is according to Sigmund
Socransky, a dental researcher at the Forsyth Dental center in Boston,
who also asserts that in a plaque-free mouth, 1,000 to 100,000 bacteria
live on each tooth surface, but when plaque is present, as many
as 100 million to one billion bacteria may be growing on each tooth.
It staggers the mind. But what does it do to the body?
Although many of these bacteria are beneficial, some can be quite
harmful. In particular, the bacteria that flourish in your mouth
when you have periodontal (gum) disease can permanently damage your
gums, as well as the bone and connective tissue that support your
teeth; this can result in tooth loss. But these bacteria impact
more than just your mouth. Researchers are finding that that they
can worsen—or even cause—problems elsewhere in the body.
Strokes, cardiac conditions, diabetes, stomach ulcers and pneumonia
have all been shown to be more prevalent or to worsen in those suffering
from gum disease.
Heart attacks
University of Buffalo
researcher Dr. Robert J. Genco found that, over a ten-year period,
those with gum disease were three times more likely to suffer a
heart attack. The precise reason for this causal relationship is
still a mystery, but Genco suggests that the disease-causing bacteria
may enter the bloodstream through tiny tears in the gums, then infect
the liver and cause it to produce proteins that clog the arteries.
Another possibility, Genco said, is that the bacteria may infect
the arteries of the heart directly, producing blockages. He bases
these theories on the fact that the oral bacteria porphyromonas
gingivalis have been found in the arteries of those suffering from
blockages and subsequent heart failure.
Infective
endocarditis
Oral bacteria can also
be life-threatening to those with a heart valve ailment. Because
of this, those with afflictions such as mitral valve prolapse, rheumatic
heart disease, a congenital heart defect, or a heart murmur may
need to take antibiotics prior to receiving any dental treatment
that might dislodge harmful bacteria into the bloodstream. The antibiotics
are a precautionary measure to protect against infective endocarditis,
a rare and sometimes fatal disease that can damage the valves and
tissues of your heart. The bacteria from plaque—S. sanguis—is
one of the most frequent causes of endocarditis, according to studies
at the University of Minnesota in Minneapolis.
Strokes
University of Buffalo
researchers studied the health histories of nearly ten thousand
people between the ages of 25 and 75 and found that the 35 percent
who had severe gum disease were also twice as likely to have suffered
a severe stroke. Why? Dr. John Marler of the National Institute
of Neurological Disorders and Stroke said that oral bacteria can
cause fatty deposits in the carotid arteries in your neck. If these
deposits break loose and travel through your bloodstream into your
brain, they can lodge there, blocking blood flow to the brain and
causing a stroke.
Diabetes
Periodontal disease probably
doesn't directly cause diabetes, said Dr. Perry R. Klokkevold of
the UCLA School of Dentistry, but it can make managing the disease
much more difficult. The bacterial infection caused by periodontal
disease diminishes the body's ability to manage its insulin levels,
greatly upsetting a diabetic's blood sugar levels. This can result
in complications such as blindness, heart problems, and kidney disease.
"We know that having
gum disease will worsen diabetes," said Dr. Christopher Saudek,
a diabetes specialist at Johns Hopkins University in Baltimore.
"People with diabetes should be careful to keep their gums
healthy."
Ulcers
Some stomach ulcers are
believed to be caused by a bacterium called helicobacter pylori.
Dr. Sherie Dowsett of the Indiana University School of Dentistry
said that this bacteria is often found in dental plaque. From the
teeth, the bacteria can migrate to the stomach, where they eat small
holes in the stomach's lining, producing painful ulcers.
Pneumonia
Bacteria that reside
in plaque are inhaled into your lungs each time you draw a breath.
Among these are chlamydia pneumoniae and pseudomonas aeruginosa,
two strains of bacteria notorious for causing respiratory disease.
Normally, the body's immune system fights off these harmful invaders.
But sometimes, such as after surgery or during an illness, the immune
system's resistance to infection is low. It's then that these opportunistic
bacteria attack the lungs and cause bacterial pneumonia, an infection
that kills about 83,000 people each year.
The
solution? Destroy their habitat
Daily brushing and flossing removes much of the plaque—the
destructive bacteria's cozy habitat within your mouth. Gently brushing
your tongue and the roof of your mouth removes even more. These
simple acts of oral hygiene keep the bacteria count down to a more
manageable level and minimize the chance that they'll move on to
wreak havoc elsewhere in your body. And of course, there's the huge
added benefit of cleaner, healthier teeth, fresher breath, and gums
free from periodontal disease. You've got everything to gain, and
nothing to lose, by simply devoting about ten minutes a day to ridding
your mouth of plaque.
Sources:
The U.S. National Institute of Dental Research
The University of Buffalo, Buffalo, NY
The University of Minnesota, Minneapolis, MN
The UCLA School of Dentistry, Los Angeles, CA
Indiana University School of Dentistry, Indianapolis, IN
Johns Hopkins University, Baltimore, MD
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