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