[Abstract]:? Porcelain tooth is a commonly used dental restoration. There are many kinds of porcelain teeth, and Co-Cr alloy is commonly used in clinic. then what ? Porcelain teeth are commonly used as dental restoration materials. There are many kinds of porcelain teeth, and Co-Cr alloy is commonly used in clinic. Then the experts of Xinqiao Dental said that the metal of Co-Cr alloy porcelain teeth has strong stability and high corrosion resistance, and generally there will be no gum blackening and bleeding. Compared with precious metal porcelain teeth and all-ceramic teeth, the cost of cobalt-chromium porcelain teeth is obviously much lower. Compared with nickel-chromium porcelain teeth, cobalt-chromium porcelain teeth are safer. First, the price of chromium alloy porcelain teeth is moderate. Compared with precious metal porcelain teeth and all-ceramic teeth, the cost of cobalt-chromium porcelain teeth is much lower. Second, compared with nickel-chromium alloy, its cobalt content is higher, generally 25%. Because of the high cobalt content, its corrosion resistance is better than that of nickel-chromium alloy, its metal stability is better, the probability of gum black line is much smaller, it is better combined with porcelain and it is not easy to crack porcelain. Another advantage of cobalt-chromium alloy is that its hardness is higher than that of gold alloy (gold), and it is not easy to deform when it is used to make long porcelain bridges. If the patient has more missing teeth and a long porcelain bridge, it can be repaired with cobalt-chromium alloy. 3. Co-Cr alloy porcelain teeth are non-toxic, non-carcinogenic, with low porcelain collapse rate and low price. Co-Cr alloy porcelain teeth have both the strength of metal and the beauty of porcelain, and their color, appearance and texture are lifelike, stable in color, smooth in surface, strong in wear resistance, difficult to deform and strong in bending resistance, and belong to "permanent restorations".