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

引起牙周炎的细菌种类对疾病的发生和牙周病的进展起着重要作用，明确婴儿期感染的确立时间和途径对思考牙周病的预防措施具有重要意义。本研究以该菌株所特有的细菌菌株为模板，采用聚合酶链式反应方法对最终的菌株进行了鉴定，选取了黑色普氏杆菌和直立弯曲菌两种菌种，用脉冲场电泳仪对其传播途径进行了检测，并对部分细菌在母婴间的传播进行了研究。如果能够建立厌氧细菌的培养方法，就可以解释更多细菌的传播机制和分布。

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.