摘要
目的 观察唾液变链菌、流速、缓冲力及口腔卫生状况在多龋的学龄前儿童和无龋的学龄前儿童中的差异 ,同时观察应用DentocultSM方法和DentobuffStrip方法评价乳牙龋齿有关危险因素的可行性。 方法 测定所有儿童的唾液变链菌水平、唾液流速、唾液缓冲力和软垢指数。变链菌和唾液缓冲力用DentocultSM方法和DentobuffStrip方法测定。结果 ①无龋组和多龋组之间唾液流速的差异、唾液缓冲力的差异没有统计学意义。②无龋组和多龋组的软垢指数分别是 2 .2 2± 0 .50、2 .37± 0 .33 ,差异有高度统计学意义。③唾液变链菌记分为 0、1、2、3四个水平。无龋组四个水平所占的比例分别为 33 .3 %、1 9.4 %、34 .6 %和 1 2 .7% ,多龋组分别为 2 .9%、1 1 .8%、2 7.0 %和 58.3 % ,两组之间的差异有高度统计学意义。将两组资料共同分析 ,记分为 0、1、2、3的各组儿童的dmft分别为 0 .46± 1 .68、3 .2 6± 4 .89、3 .66± 4 .99、7.1 0± 4 .42 ,记分 0组与记分 1组之间的差异、记分 2组与记分 3组之间的差异有高度统计学意义 ,记分 1组与记分 2组之间的差异没有统计学意义。结论 口腔卫生越差的儿童 ,或者唾液中变链菌水平越高的儿童越易患龋齿。
Objective Assessing the relationship among saliva mutans streptococci,saliva flow rate,saliva buff capacity,oral hygiene and caries status in primary teeth,and to observe the efficacy of Dentocult SM and Dentobuff Strip as a risk indicator for predicting caries experience in preschool children.Methods Among 1018 examined 4-year old and 5-year old children,to screen 204 ones whose dmft≥6 in caries group,and 237 ones in caries free group.Saliva mutans streptococci,saliva flow rate,saliva buff capacity,and debris index were tested for all children.The methods of Dentocult SM and Dentobuff Strip were used.Results ①The difference of the saliva flow rate between two groups was not statistically significant,so was the saliva buffer capacity.②The debris index was 2.22±0.50 in caries free group and 2.37±0.33 in caries group respectively.The difference between two groups was highly statistical significant.③Four scores (0,1,2,3) were used to record the level of saliva mutans streptococci.The proportion of score 0,1,2,3 was 33.3%,19.4%,34.6%,12.7% in caries free group,and 2.9%,11.8%,27.0%,58.3% in caries group respectively.The difference between two groups was highly statistical significant.The mean dmft of children in each score level was 0.46±1.68,3.26±4.89,3.66±4.99,7.10±4.42,respectively.The difference between score 0 group and score 1 group,and between score 2 group and score 3 group was highly statistical significant.There is no statistical difference between score 1 group and score 2 group.Conclusion The study demonstrated the strong positive association between more caries and higher level of saliva mutans streptococci and poor oral hygiene.The Dentocult SM test was effective for predicting caries risk in preschool children.
出处
《现代口腔医学杂志》
CAS
CSCD
2003年第1期68-70,共3页
Journal of Modern Stomatology
关键词
龋齿
唾液
变形链球菌
儿童
Caries Saliva Mutans streptococci Children
