华西口腔医学杂志

• 基础研究 •    下一篇

饮料导致牙釉质脱矿作用的实验研究

周学东,刘兴容,张萍,张静仪,靳淑凤,王志凌   

  1. 610041 四川大学华西口腔医学院(周学东,张 萍,张静仪,王志凌),泸州医学院附属医院口腔内科(刘兴容),天津市口腔医院预防科(靳淑凤)
  • 收稿日期:2001-08-25 修回日期:2001-08-25 出版日期:2001-08-20 发布日期:2001-08-20

An Experimental Study on Demineralization of Several Beverages on Bovine Enamel

Zhou Xuedong, Liu Xingrong, Zhang Ping, et al   

  1. The College of Stomatology,West China University of Medical Sciences
  • Received:2001-08-25 Revised:2001-08-25 Online:2001-08-20 Published:2001-08-20

摘要:

目的:比较不同种类饮料对牙釉质的脱矿作用。方法:采用微量化学分析法测定饮料在处理牙釉质后1~7d 饮料中钙和磷浓度的变化。结果:实验饮料除矿泉水外对牙釉质都具有脱矿作用,导致牙釉质钙和磷的溶出。钙和磷的溶出因饮料的种类而异,差异具有显著性,P<01001。随时间的延长,钙和磷的溶出也具有显著性差异,P< 01001。钙和磷在7d内的总溶出量也因饮料的种类而异,差异具有显著性,P<01001。果汁类的钙和磷总溶出量最高,分别为11355Lmol/L?01250Lmol/L和11780Lmol/L?01270Lmol/L;钙奶最低,分别为01290Lmol/L?01092Lmol/L 和01239Lmol/L?01050Lmol/L。结论:饮料对牙釉质具有脱矿作用,脱矿作用的强弱与饮料的种类有关,果汁类最强,钙奶最弱。

关键词: 饮料, 牙釉质, 脱矿, 再矿化

Abstract:

Objective:The aim of this study is to investigate the demineralization effects of several beverages on bovine enamel.Meth- ods:The concentration of calcium and phosphate in these beverageswere measured by using EL312e Micro-Plate after the bovine enamel was exposed to beveragesfor a period of 7 days.Results:The data indicated that almost all of these beverages could cause demineralization of bovine enamel, except mineral water, and the concentration of calcium and phosphate in these beverages changed after the bovine enamel was exposed to beverages. There were great significant differences in demineralization abilities a- mong different beverages (P<0101). The concentration of calcium and phosphate in beverages also changed with time (P< 0101).Conclusion:All these beverages, except mineral water have erosive effects on bovine enamel. Demineralization degree varied with kinds of beverages. The fruit juice has the highest erosive effect on the enamel, and the calcium milk has the lowest erosive effect on the bovine enamel, when comparing with other beverages.

Key words: beverages, enamel, demineralization, remineralization