摘要
目的 :本实验通过检测 61名 12～ 16岁正畸与正常儿童的龋活性 ,以了解固定矫治与龋活性的关系。方法 :行变形链球菌计数、乳酸杆菌计数、细菌产酸能力测定和唾液缓冲能力测定 ,用t检验进行统计。结果 :正常儿童组口腔内变链菌和乳杆菌数目明显少于正畸儿童组 ;而唾液 pH值和缓冲能力及细菌产酸能力 ,两组间无显著性差异 (P >0 .0 5 )。结论
The aim of this study is to find out the relation of othodontically treated to caries activity by detecting the caries activity of othodontically treated and untreated children.Methods:The subjects consist of sixty-one twelve to sixteen-year-old children. 31 children are treaded for half year. 30 children are in control group.The detective methods are to enumerate streptococcus mutans and lactobacillus in saliva,ability of germ to produce acid and salivary buffering capacity.The results are used to analyse the statistical difference.Results:The results showed that the number of streptococcus mutans and lactobacillus in untreatd group are much lower than that of othodontically treated,the salivary pH,salivary buffering capacity and ability of germ to produce acid are similar between orthodontically treated and untreated children.Conclusions:The results suggest that the orthodontically treated children are more sensitive to dental caries than untreated children.
出处
《口腔医学纵横》
CSCD
2002年第1期28-29,共2页
Journal of Comprehensive Stomatology
基金
云南省教委基金资助
