表面活性剂加氟化钠涂料对牙骨质表面显微硬度的体外研究

An in vitro study of effect of surfactants-fluoride varnishes on the hardness of root-surface

目的 :探讨表面活性剂加氟化钠涂料防治根面龋是否优于单独用氟化钠涂料或洗必泰涂料。方法 :在离体牙釉 -牙骨质界下开窗 4mm× 4mm ,分别经洗必泰加氟化钠涂料 (简称氟泰涂料 )、洗必泰涂料、氟化钠涂料等处理后进行矿化实验和抗龋实验 ,然后测定各组牙骨质表面的显微硬度。结果 :3组矿化实验前、后牙骨质表面硬度相比 ,氟泰涂料组和氟化钠涂料组较洗必泰组均有显著差异 ,且氟泰组比氟化钠组硬度值显著增加。抗龋实验前、后牙骨质表面显微硬度值相比 ,氟泰组、氟化钠组无显著差异 ,洗必泰组、对照组均有显著差异。结论 :用氟泰涂料改善牙骨质表面硬度与氟化钠组具相同效果 ,且优于氟化钠组。

AIM:To study the feasibility of effect of preventing root-surface caries by self-made surfactants-fluoride varnishes,whether it is superior to the fluoride varnishes or surfactants varnishes. METHODS:The comparative effect of surfactants-fluoride varnishes and fluoride varnishes or surfactants varnishes on the hardness of root-surface were studied. RESULTS:The hardness of root-sruface was increased in the surfactants-fluoride varnishes group and fluoride varnishes group. The former was increased more than the latter.This difference was significant.Measurement of effect of hardness in root-surface showed no diffrence in surfactants-fluoride varhishes group and fluoride varnishes group,but was guite different in the surfactants varnishes and control group.CONCLUSION:The effects of surfactants-fluoride varnishes group and fluoride varnishes group are similar, but the former is somewhat better. This result suggests that the surfactants-fluoride coordinat varnishes may be a possible material to prevent root-surface caries.