Elucidation of transmission of bacteria induced in periodontal diseases in children and development of prevention from periodontitis in adults

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The bacterial species induceed periodontitis play an important role to the appearance of disease and the progress of periodontal disease, and it is important for thinking about the prophylactic measure of periodontal disease to clarify the established time and the route of infection of the infant period. We identified a final bacterial strain by the PCR method with a primer the bacterial strain peculiar, chose two kinds of bacterial species of Prevotella nigrescens and Campylobacter rectus, examined the transmissive route with a pulse field electrophoresis unit, and admitted the spread among mother and child for a part of bacterium in this research. If the method of culturing anaerobic bacteria was able to be established, it was suggested that the transmission mechanism and the distribution of more bacteria would be interpretable.