Priyadarshini H R, Hiremath S S, Fernandes Bennete
Department of Community Dentistry, Dr. Syamala Reddy Dental College, Hospital and Research Center, Bangalore, India.
Department of Community Dentistry, Oxfrod Dental College, Bangalore, Karnataka, India.
Dent Res J (Isfahan). 2013 Nov;10(6):728-31.
To find out if there is an association between levels of salivary Mutans Streptococci (MS) of mothers and salivary MS and Caries experience of their Children.
A cross sectional study was designed among 180 mother-child pair attending Vanivilasa Children Hospital, Bangalore, India. Caries was diagnosed using WHO criteria. Ninety children with Early Childhood Caries (ECC) with their mothers were included in case group and 90 caries free children with their mothers were included in the control group. Whole non-stimulated saliva was collected from mothers and children and cultured for MS. Colonies were counted and compared. Data was analyzed using SPSS version 10. Chi-square test and t-test were used to find differences between groups. P value of <0.05 was considered as significant.
Among 180 children, 80 of them had a high MS count. Among them, 60 (75%) had ECC and only 20 (25%) were caries free. This difference was significant with P < 0.001. Among 180 mothers, 100 had a high MS count. Among them, 60 (60%) belonged to case group and 40 (40%) to the control group (P = 0.003). Forty nine of the Children in case group with a high count also had mothers with high count as against only 14 in the control group (P < 0.001).
Present study showed a strong association between maternal and child salivary MS levels indicating that mother's MS count could be an important risk indicator for ECC development.
探究母亲唾液中变形链球菌（MS）水平与孩子唾液中MS水平及龋齿经历之间是否存在关联。
在印度班加罗尔的瓦尼维拉萨儿童医院对180对母婴进行了一项横断面研究。采用世界卫生组织标准诊断龋齿。病例组纳入90名患有幼儿龋齿（ECC）的儿童及其母亲，对照组纳入90名无龋齿儿童及其母亲。收集母亲和孩子的全非刺激性唾液并培养MS。对菌落进行计数并比较。使用SPSS 10版软件分析数据。采用卡方检验和t检验来发现组间差异。P值<0.05被认为具有统计学意义。
在180名儿童中，80名儿童的MS计数较高。其中，60名（75%）患有ECC，只有20名（25%）无龋齿。这种差异具有统计学意义，P<0.001。在180名母亲中，100名母亲的MS计数较高。其中，60名（60%）属于病例组，40名（40%）属于对照组（P = 0.003）。病例组中MS计数高的49名儿童其母亲的MS计数也高，而对照组中只有14名（P<0.001）。
本研究表明母婴唾液中MS水平之间存在密切关联，这表明母亲的MS计数可能是ECC发生的一个重要风险指标。
