Tetracycline is due to genetic factors, or due to the common use of tetracyclines in. In general, for patients with mild tetracycline teeth beauty through the methods to improve the color of teeth; and for patients with severe tetracycline stained teeth beauty, to let the teeth restored with white state, only through the cold treatment is difficult to achieve the desired effect, then the need for beauty of all-ceramic dental restorations, it can make people teeth white, beautiful.