Earlier we talked about all-metal full crowns, which are a good choice for posterior teeth where the patient does not have very high aesthetic requirements (especially gold alloy full crowns). But what about in the anterior teeth? What if the patient’s aesthetic requirements are also particularly high for the posterior teeth? This is where we need a full crown material that is the same color as the natural tooth. Porcelain fused-to-metal crowns, also known as porcelain crowns, are made by first creating an inner crown made of cast metal, also called a base crown, and then fusing porcelain to the surface of this metal crown by high-temperature sintering. This porcelain crown has both the strength of a metal crown and the aesthetics of porcelain. In the porcelain crown porcelain surface does not have to cover all surfaces of the crown, only in the visible aesthetic impact of the outer surface, the tooth can not see the inner surface (lingual surface) or covered by the metal crown. This ensures the strength of the porcelain crown, which is mainly provided by the metal inner crown. As with all-metal crowns, the types of metal used to make porcelain crowns are different, and gold alloys are still the best option for making porcelain crowns. However, as the price of gold continues to skyrocket, the price of gold alloy crowns will also increase. Porcelain crowns have been in clinical use for more than half a century and are a very mature type of full crown. Basically, porcelain crowns can meet the aesthetic and strength requirements of patients for full crowns, and can restore both front and back teeth. But in recent years, with the development of technology, the clinical application of more aesthetic full porcelain crowns is becoming more and more widespread.