supported by the National Natural Science Foundation of China (grant nos. 30572409 and 30430800);Youth Foundation of Sichuan Province in China (grant no. 07ZQ026-020)
To determine the chemical composition of Galla chinensisextract (GCE) by several analysis techniques and to compare the efficacy of GCE and its main component(s) in inhibition of enamel demineralization, for the d...