【摘要】 目的比较多乐氟与GC护牙素两种制剂在固定正畸治疗中的抑制釉质脱矿的临床疗效。方法选择我院正畸科进行固定矫治患者120例,共2526颗牙齿。参照随机数字表将患者分为三组:A组(40例,850颗)在治疗过程中使用GC护牙素涂布牙齿表面,每月1次;B组(40例,896颗)使用多乐氟涂布,每3个月1次;C组(40例,780颗)作为空白对照组,牙齿表面不做特殊处理。比较三组患者矫正后6个月的釉质脱矿情况。结果矫正前三组患者均为出现3度釉质脱落,且组间釉质脱落区数无显著差异(P>0.05),在矫正开始第6个月,三组釉质脱落区数存在显著差异(P<0.001);比较三组釉质脱矿指数,矫正前无显著差异(P>0.05),矫正6个月时三组较矫正前指数显著上升,且A、B两组无显著差异,C组明显高于A、B两组(P<0.05)。结论多乐氟和GC护牙素在固定正畸治疗中,均可有效抑制牙釉质脱矿现象,临床可根据患者具体情况选择合适方案。更多还原

【Abstract】 Objective To compare the clinical effect of Duraphat and GC tooth friendly paste in inhibiting enamel demineralization during fixed orthodontic treatment. Methods A total of 120 patients(2526 teeth) received orthodontic treatment in our hospital were selected in the study, which were divided into group A(40 cases, 850 teeth), group B(40 cases, 896 teeth) and group C(40 cases, 780 teeth) by random number table method. During treatment, patients of group A used GC tooth friendly paste to coat outer surface of teeth once per month, patients of group B used Duraphat to coat and group C was blank control group without special treatment. 6 months after correction, the status of enamel demineralization was compared among groups. Results There was grade 3 enamel demineralization in all groups before correction, the number of areas with enamel demineralization showed no significant difference among groups(P>0.05). In the sixth month after the beginning of correction, there were significant differences in the number of areas with enamel demineralization among groups(P<0.001). There was no significant difference in enamel demineralization index among groups before correction(P>0.05). In the sixth month after the beginning of correction, the index was increased significantly, there was no significant difference between group A and group B, it was higher in group C than group A and group B(P<0.05). Conclusion Both of Duraphat and GC tooth friendly paste can effectively inhibit enamel demineralization in fixed orthodontic treatment. The appropriate scheme can be chosen according to the actual condition.更多还原