As the porcelain teeth are made by high temperature grilling dentures, compared with the traditional movable rubber teeth and fixed steel teeth, there are the following advantages: 1, aesthetics: porcelain teeth can be sculpted into the patient’s facial shape and coordination of the tooth shape, the color can also be matched with the natural teeth similar to the teeth full of luster. 2.Comfort: Because of the good biocompatibility of porcelain, porcelain teeth in the mouth will not be even a very small reaction with the saliva in the acid and other substances, there is no foreign body sensation. 3, the exercise of functional effects: the hardness of the porcelain teeth can withstand the enamel of the pressure degree, eating is not affected.