不同种类饮料导致年轻恒牙牙釉质脱矿的实验研究

An experimental study on young permanent teeth enamel demineralization by different kinds of soft drinks

目的:比较不同种类的饮料对年轻恒牙牙釉质的脱矿作用;比较饮料在不同作用时间和频率下导致年轻恒牙牙釉质脱矿的程度。方法:采用维氏显微硬度仪,测定经4种不同饮料浸泡的年轻恒牙牙釉质的表面显微硬度的变化。采用Roche生化分析仪,测定4种饮料处理年轻恒牙牙釉质后饮料中钙、磷含量的变化。采用SPSS15.0软件包对结果进行双因素方差分析。结果:4种饮料均可导致年轻恒牙牙釉质钙、磷溶出和表面显微硬度下降。不同种类饮料对牙釉质的脱矿程度不同,差异具有显著性(P<0.05)。随着饮料对牙作用时间和频率的延长,牙釉质的脱矿程度增加。结论:果汁类和碳酸类饮料均可导致牙釉质脱矿。茶饮料可以促进牙釉质的再矿化,是较理想的健康饮料。

PURPOSE： To compare the young permanent teeth enamel demineralization after immersion in different kinds of soft drinks; to compare the degree of enamel demineralization caused by the different immersion time and frequency of beverages. METHODS： The change of young permanent teeth enamel surface microhardness was measured by a leitzs microhardness tester. The change of calcium and phosphate in the different drinks after immersion of the enamel was analyzed by Roche Biochemical analyzer. Two-way ANOVA in SPSS 15.0 software package was used for statistical analysis. RESULTS ： The dissolution of calcium and phosphate in young permanent teeth enamel was caused by all kinds of soft drinks the surface microhardness of enamel was decreased by these drinks. There were great significant differences in the demineralization abilities among different beverages （P〈0.05）.The enamel demineralization was increased when prolonging the immersion time and frequency. CONCLUSIONS： The enamel demineralization can be caused by orange juice and carbonic acid drinks. The enamel remineralization can be increased by tea drink, which is an ideal healthy beverage.