【摘要】 对49名健康儿童和青少年(6～25岁)正常口腔菌群分布进行研究,测定其中优势的可培养细菌的检出率和检出比例。从195个唾液、沟裂菌斑、龈上菌斑和龈下菌斑标本中,共分离出28个菌属(包括72个菌种)。结果表明:口腔链球菌群、奈瑟氏菌属、放线菌属、二氧化碳噬纤维菌属、类杆菌属和梭杆菌属是正常口腔的优势菌群。在不同标本其优势细菌的种类存在差异,例如梭杆菌和类杆菌在龈下菌斑中的检出率和检出比例较沟裂菌斑高。更多还原

【Abstract】 The frequencies and propor-tions of predominant cultiv ableoral baet-eria associated with 49 healthy children andjuvenile(6-25 yr old) were studied. A totalof 72 bacterial species belonging to 28 ge-nus were detected in 195 samples of saliva,fissure plaque, supragingival plaque, andsubgingival plaque. The predominant bacteria were Oralstreptococci, Neisseria, Actinomyces, Cap-nocytophaga, Bacteroides and Fusobacteriumin the normal oral cavity of healthychildren and juvenile. There were differnces in the distribu-tion of the predominant flora, e.g. Fuso-bacterium and Bacteroides had higher in-cidence and proportion in the subgingivalplaque than in the fissure plaque.更多还原