Page 48 - Summer2010
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Upon cooling         infection, dentistry generally considers a tooth  tory system? Does this information validate the

                 and shrinking       sterile unless areas of bone resorption show up on  claims of “sterile” root canals?
                                                                                   Dentists claim they can “sterilize” the tooth
                                     X-ray. Upon cooling and shrinking of the gutta
                   of the gutta      percha, space is left at the apex in which bacteria  before forcing the gutta percha wax down into
                percha, space        can thrive, where neither white blood cells of the  the canal. Perhaps they can sterilize a column

                   is left at the    immune system, nor antibiotics can reach them.  of air in the center of the tooth, but is that really
                                                                               where the problem is? Bacteria wandering out of
                apex in which        TOXIC MICROORGANISMS                      the dentinal tubules is what Price was finding,
                  bacteria can          Our first DNA studies examined bacteria  and what we were finding in the crushed tooth
                 thrive, where       retrieved from crushed root tips. We can identify  samples. But does the problem end there? Hardly.
                                                                                   Just out of curiosity, we tested blood samples
                                     eighty-three different anaerobic bacterial species
                 neither white       with DNA testing. Root canals contain fifty-  adjacent to the removed teeth and analyzed them
                 blood cells of      three different species out of these eighty-three  for the presence of anaerobic bacteria. Approxi-
                  the immune         samples. Some are more dangerous than others,  mately 400 percent more bacteria were found in
                                     and some occur frequently, some occasionally.  the blood surrounding the root canal tooth than
                   system, nor       Selecting those that occur more than 5 percent  were in the tooth itself. It seems that the tooth

                     antibiotics     of the time, we found:                    is the incubator. The periodontal ligament sup-
                     can reach          Capnocytophaga ochracea                plies more food, therefore higher concentration
                                                                               of bacteria.
                           them.        Fusobacterium nucleatum                    But the winner in pathological growth was
                                        Gemella morbillorum                    in the bone surrounding the dead tooth. Look-
                                        Leptotrichia buccalis                  ing at bacterial needs, there is a smorgasbord
                                        Porphyromonas gingivalis               of bacterial nutrients present in the bone. This
                                                                               explains the tremendous increase in bacterial
                                        Of what significance are these? Four affect  concentration in the blood surrounding the root
                                     the heart, three the nerves, two the kidneys, two  canal tooth. Try sterilizing that volume of bone.
                                     the brain and one the sinus cavities. Shouldn’t we     Apparently, the immune system doesn’t
                                     question the wisdom of supplying a haven for  care for dead substances, and just the presence
                                     these microbes so close to our brain and circula-  of dead tissue will cause the system to launch an


                                                  BACTERIA LURKING IN ROOT CANALS

                     Let’s look at five major bacterial species lurking in root canals more closely, keeping in mind that these are only five
                 of the fifty-three that are routinely found in root canal teeth.

                 Capnocytophaga ochracea: Found in brain abscesses associated with dental source of infection. Causes human disease
                 in the central nervous system. Also related to septicemia and meningitis. 4

                 Fusobacterium nucleatum: Produces toxins that inhibit fibroblast cell division and wound healing processes. Causes infec-
                 tion in the heart, joints, liver and spleen. 5,6

                 Gemella morbillorum: Linked to acute invasive endocarditis, septic arthritis and meningitis. 7

                 Leptotrichia buccalis: Reduces the number of neutrophils (a critically important white blood cell), thus lowering immune
                 competence. 8

                 Porphyromonas gingivalis: Destroys red blood cells by drilling holes (porins) in them, causing the cell to “bleed to death.”
                 Low red cell counts that do not recover after dental revision are frequently responding to the porin activity of this microbe.
                 P. gingivalis also alters the integrity of the endothelial lining of blood vessels, which leads to inflammation and bleeding in
                 the inner lining of blood vessels. This is the key step in formation of atherogenesis that leads to heart attacks. P. gingivalis
                 can change friendly bacteria into pathogens. 9

                48                                         Wise Traditions                               SUMMER 2010
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