Porphyromonas Gingivalis bacteria found in the periodontal pockets may be responsible for a host of systemic diseases in the body. Gingipains, a endopeptidase enzymes secreted by the bacteria is found in the brain tissue of Alzheimer victims. The gingipains are also found in the diseased aorta, heart, spleen, kidney, joints, and pancreas diseases. This course will go over how the bacteria accomplishes this. Will we live longer if we can eradicate periodontal disease, especially this, bacteria.