

The links and connections between oral infection and serious
systemic health are irrefutable. Oral infection is linked to cardiovascular
disease, from atherosclerosis to infarction, diabetes, low
birth-weight babies, premature birth, still birth, osteoporosis,
kidney disease, certain cancers, lung disease and the list continues
to grow. We are long past debating the links. While scientists
and researchers pursue the actual mechanisms and quantify
specifics, the cumulative credible literature leaves no doubt that
an unhealthy mouth is a factor in many serious general health
problems. Oral health is integral to general health.
The medical community is becoming increasingly aware, as
the connection between oral health and major general health
issues reaches the public ear and enters public discourse. Our
patients read about it in newspapers and magazines, hear it on
the radio and see it on television, for example with Dr. Oz on
The Oprah Winfrey Show. To our patients, we are the experts and
need to be prepared to address these issues in daily practice.
Dentistry has a major obligation to meet this burgeoning reality
and to accept its role on the front line in health care, wellness
and longevity.
Programs are now in place that address the oral-systemic link
with blood tests measuring systemic evidence of inflammation
in the blood: C-Reactive Protein (CRP) and Interleukin-1 (IL-
1). CRP is synthesized in the liver and is released by the body as
a response to inflammation. IL-1 is a pro-inflammatory
cytokine composed of two distinct proteins, and elevated levels
of IL-1 in the blood contribute to inflammation at sites distant
from the periodontal tissues. Studies show an association
between active periodontal disease and CRP levels, with periodontal
treatment resulting in decreased CRP levels. Identifying
the cause of oral infection and documenting the diagnosis can
be done with direct tests that the dentist directs and controls,
which is preferable. Oral infection is a pathologic level of harmful
bacteria and organisms which are typically present in the natural
oral environment or "ecosystem." If levels of harmful
organisms can be kept in balance, than oral disease can largely
be prevented.
Periodontal disease effectively creates a "safe harbor" for
pathogens to survive, thrive and enter the bloodstream via the
raw, open subgingival wounds that periodontal disease creates.
These bacteria can trigger a body-wide inflammatory response,
contribute to arterial thickening, cross the brain-blood barrier or
the placenta-blood barrier. Pathogens can cause or exacerbate a
significant list of serious systemic diseases and conditions.
The pathogens of oral infection cause three oral problems:
periodontal disease, caries and halitosis. The manifestations of the problems are evidence of oral infection and treatment is
indicated. We should be proud as a profession for our preventive
approach, but professional in our assessment of success
and failure.
Sadly, our best efforts have not reduced the incidence of
periodontal disease. Still, an average of 75 percent of the population
is affected to some degree, even with sophisticated home
care methods and a variety of oral hygiene products.
Nonsurgical periodontal programs and periodontal maintenance
often relapse with disease recurrence, most likely from
continued exposure to harmful pathogens.
The first step in treating and preventing further periodontal
disease progression is accurate baseline diagnostics of the quantities
and qualities of organisms in the oral cavity or "ecosystem."
Microbiology and bacteriology of the oral cavity are now
available to screen and test for harmful levels of pathogenic
organisms in the oral cavity. The first test to consider is the
BANA Test, invented by world-renowned periodontist and
researcher, Dr. J. Walter Loesche and his colleagues at the
University of Michigan. The BANA Test is the result of 15 years
of research and is supported by more than 40 published studies.
In a study published in the Journal of Clinical Microbiology in
1992, the BANA test was found to be as accurate as both DNA
testing and laboratory culturing in detecting the three most virulent
periodontal pathogens – the "Red Complex" comprised of
Bacteroides forsythus, Porphyromonas gingivalis, and Treponema
denticola. BANA is the acronym for benzoyl-DL-argininenapthylamide,
a synthetic peptide that can only be hydrolyzed
by these three periodontal pathogens. This synthetic peptide,
along with a dye, is imbedded in test strips on which a subgingival
plaque sample is placed. If any of the three bacterial species
is present, they hydrolize the BANA enzyme producing B-naphthylamide.
This enzyme reacts with the imbedded dye to produce
a permanent blue color, indicating a positive test. If no
color appears after incubation, none of the bacteria were present
in the test sample. This enzyme will not be hydrolized by blood
or saliva, only the three Red Complex bacteria.
Despite the highly sophisticated chemistry employed, this
test is inexpensive and takes just a few minutes of operator time.
Samples of subgingival plaque and tongue biofim are placed on
the test strip. It is then placed in the small countertop incubator
unit where it is gently heated for a few minutes. Although a positive
test does not provide information about the quantity and
virulence of these periodontal pathogens, it is an excellent way
to introduce a discussion of the link between oral infections and
systemic conditions. It is a valuable service, generates revenue
and opens the door to a discussion of oral-systemic concerns. A
positive BANA is a "red light" warning of the presence of the
Red Complex periodontal pathogens.
The BANA Test is produced by BANAMet, LLC, and is
available as a stand-alone testing tool from Oratec or as part of
a comprehensive three-step approach to dealing with oral infection
from Novora Biomedical Corporation.
Another chairside test offered by Novora Biomedical
Corporation is a Gram Stain test and report on oral bacteria
called PerioLinx developed specifically for dental practices.
Plaque biofilm samples are taken from the dorsom of the
tongue, base of the tongue, and from subgingival areas. Samples
are placed on individual glass slides, packaged and shipped to
the lab. Bacteria do not need to be kept alive for this test. An
oral microbiologist fixes, stains and analyzes the results and a
PerioLinx Report is sent to the office and the patient with
graphic and written details of the number of gram negative and
gram positive cocci, bacilli, fusiforms, as well as spirochetes,
yeasts, vibrios and white blood cells present in the sample.
Addressing the oral-systemic health connection means
understanding and dealing with the microbiology of oral
infection. It all starts with an accurate diagnosis and identification
of the causative factors – the pathogenic organisms in
the oral cavity "ecosystem." Microbiological testing no longer
needs to be reserved for researchers, it is readily available in
the dental practice and promises to be an effective way to
motivate patients and differentiate practices that adopt accurate
screening and diagnostics. Clinicians now have options
and systems to assist them is discussing periodontal disease
with patients, and providing the scientific evidence in report
form to educate and motivate patients to accept recommended
treatment.
|