The price of ordinary steel braces (clinically known as metal crowns) is generally about three hundred to one thousand dollars, the specific price varies, it is recommended to refer to the local medical institutions. Metal crowns are mainly used for the restoration of missing teeth, but because of their metallic color, they are generally used for the restoration of missing back teeth; they have better toughness to withstand greater chewing force. Ordinary metal crown materials mainly include cobalt chromium alloy, compared with precious metal materials, it is easy to corrode and can not carry out the shortcomings of the magnetic resonance examination. Therefore, the price of ordinary metal crowns is relatively low, the cost of a denture is about three hundred to one thousand dollars; and missing teeth are recommended to choose the appropriate restoration under the doctor’s diagnosis.