McCrary B R, Streckfuss J L, Keene H J
University of Texas Health Science Center, Dental Branch, Houston.
J Periodontol. 1989 May;60(5):255-8. doi: 10.1902/jop.1989.60.5.255.
The relationship between oral hygiene and oral Group D streptococcal carrier status was examined in two groups of dental clinic patients. Eighteen medically-physically compromised and 20 periodontitis patients were selected for study. Oral hygiene status was assessed and the prevalence of oral Group D streptococci was determined by sampling the oral cavity with a vigorous 15 second rinse with 5 ml peptone-saline solution. Three ml of each sample was cultured at 40 degrees C in 30 ml of SF broth for 72 hours. Esculin fermenting colonies isolated from the SF broth were characterized biochemically according to standardized procedures and patients were classified as either carriers or non-carriers. Group D streptococci were detected in 27.8% of the medically-physically compromised group and 4.5% of the periodontal disease patients. The mean DI-S score of the medically-physically compromised group was significantly lower than in the periodontal group. Within the medically-physically compromised group, the DI-S means of carriers and non-carriers were not significantly different. The data indicated no important relationship between oral hygiene and the prevalence of oral Group D streptococci in the groups studied.
在两组牙科诊所患者中研究了口腔卫生与口腔D组链球菌携带状态之间的关系。选取了18名有医学 - 身体问题的患者和20名牙周炎患者进行研究。评估口腔卫生状况，并通过用5毫升蛋白胨盐水溶液剧烈漱口15秒来采集口腔样本，以确定口腔D组链球菌的患病率。每个样本取3毫升在40摄氏度下于30毫升SF肉汤中培养72小时。从SF肉汤中分离出的七叶苷发酵菌落按照标准化程序进行生化鉴定，患者被分类为携带者或非携带者。在有医学 - 身体问题的患者组中，27.8%检测到D组链球菌，在牙周病患者组中为4.5%。有医学 - 身体问题的患者组的平均DI - S评分显著低于牙周病组。在有医学 - 身体问题的患者组中，携带者和非携带者的DI - S平均值没有显著差异。数据表明在所研究的组中，口腔卫生与口腔D组链球菌的患病率之间没有重要关系。
