For various reasons caused by missing teeth and missing teeth patients are very concerned about a set of realistic, beautiful, strong and comfortable dentures, because missing teeth can cause chewing weakness, neighboring teeth, loose teeth, unclear pronunciation, temporomandibular joint lesions, and in particular, also affects the aesthetic appearance of the face. At present, the choice of porcelain dentures can better meet the requirements of patients. Porcelain restorations are divided into metal and metal-free porcelain. Porcelain metal refers to the first production of metal inner crown, as a support, on its surface with the natural tooth color similar to the porcelain powder to restore the shape of the tooth, baked in a vacuum porcelain furnace, so that the porcelain and metal alloy fusion to form a porcelain crown. Porcelain metal crowns have high strength and are the skeleton of the porcelain, which has the color and texture of natural teeth. Covering the metal surface with porcelain can make up for the defects of the metal color, fully reflect the natural tooth color and shape, and porcelain and gums have better biocompatibility does not cause gingivitis. Porcelain metal is divided into precious metal and non-precious metal porcelain two kinds of technology. Precious metal porcelain metal crowns generally contain gold, palladium and other precious metals. It has two major advantages: one is the color, especially the porcelain teeth and gums in contact with the place is very beautiful, does not appear green, gray; two is the combination of porcelain and metal is very good, the disadvantage is that the cost is higher. Non-precious metal porcelain is generally baked on nickel-chrome alloy. Its advantage is the lower cost, the disadvantage is the edge of a slightly poorer degree of adhesion, and the gums in contact with the party prone to a blue, gray line, slightly affecting aesthetics, and now has been gradually improved cobalt chromium alloy porcelain instead. Metal-free porcelain refers to porcelain teeth without metal crown, is an all-porcelain teeth, mainly in the late 80’s, 1996, and the successful development of ultra-ceramic composite fiber bridge technology. Due to the impact of porcelain strength, now mainly used for the production of a single porcelain crown or veneer repair to improve the aesthetics of the front teeth. Such as tetracycline teeth, dead pulp teeth and other discolored teeth cosmetic. Porcelain dentures are characterized by the use of missing teeth at both ends of their own teeth to bear the occlusal force of the missing teeth, if it is a well-treated residual teeth strong support. With the way of adhesive bonding on their own teeth, the patient can not remove themselves, so that dentures and natural teeth form a functional whole, easy to clean in the mouth, eliminating the tedious removal of movable dentures. The volume of fixed dentures is similar to the volume of natural teeth, the edges are close, the patient feels comfortable without obvious foreign body sensation, there is no obvious obstacle to the functional activities of the tongue, does not affect the pronunciation. Porcelain fixed dentures can be color-coordinated according to the patient’s natural teeth, which is aesthetically pleasing and realistic, and is very popular among patients. Porcelain dentures are a good choice for patients who have a suitable range of missing teeth, one to two missing back teeth, one to four missing front teeth, healthy natural teeth without obvious tilt at both ends of the missing teeth, normal occlusion of the upper and lower teeth, good oral hygiene, and high demand for aesthetics and comfort.