The invention encompasses compositions and methods for treating and modifying surfaces of teeth, which compositions include calcium and magnesium containing silicates or silica, cationic polymer modified silica or combinations thereof. The composition when applied to the teeth or tooth surface deposit on such surfaces to repair acid damaged enamel and prevent further erosion of tooth surface.本發明包含用於治療及修飾牙齒表面的組成物和方法，該組成物包括含有鈣和鎂的矽酸鹽或二氧化矽、經陽離子聚合物改質之二氧化矽或其組合。該組成物當塗佈至牙齒或牙齒表面時可沈積於該表面上而修補酸損傷的琺瑯質及進一步預防牙表面的腐蝕。
