不同饮料对乳牙釉质酸蚀作用初探

Dental erosive effects of beverages on deciduous enamel

目的:使用激光荧光法测定市售饮料对乳牙釉质表面的酸蚀作用。方法:48个离体乳前牙随机分为4组,分别浸泡于可乐、鲜橙汁、优酸乳和去离子水中25 h,每5 h换液1次。通过扫描电镜进行釉质表面形态学观察,并使用激光荧光诊断仪进行定量分析。结果:可乐组和橙汁组样本酸蚀脱矿明显,实验前后激光荧光值差异有统计学意义(P<0.05),可乐酸蚀脱矿能力显著高于橙汁。优酸乳组脱矿不明显,且电镜下可见钙化物沉积。结论:软饮料可造成乳牙釉质酸蚀脱矿,应当控制儿童软饮料的消耗并建议改变饮用方式。

AIM： To evaluate the erosive effect of different beverages on deciduous enamel.METHODS：Forth-eight deciduous teeth was randomly divided into four groups,and each group of teeth were soaked in cola drinks,orange juice,yoghurt and deionized water respectively.The morphological changes were observed by a scanning electron microscope and quantified by a laser fluorescence system.RESULTS：There was a significant difference in laser fluorescence value between the cola drink group and the orange juice group.The erosive capacity of the drinks was cola drinksorange juiceyoghurt.CONCLUSION：Beverages can cause dental erosion of deciduous teeth.It is suggested that beverage consumption by children should be controlled.