Patient: Dr. Tan: Hello! I have had root canal treatment for my lower right penultimate posterior sulcus tooth caries at Peking University Dental, and the defect area is about one-third of the tooth surface. The tooth is not loose. The doctor has helped to fill the tooth with filling material. The endodontist said that he was afraid that the repaired tooth would be broken by eating hard food in the future, so he suggested to go to the restoration department after two weeks to have the tooth ground and wrapped with a crown. I would like to ask the doctor: What is the total cost of such a crown restoration with various grades of materials? It would be better to separate the high and low grades and the detailed materials. Thank you! Tan Jing, Department of Restorative Dentistry, Peking University Stomatological Hospital: Crowns can be divided into two categories in terms of material. One type is metal crowns, one type is porcelain crowns. There are two types of metal crowns, one is nickel-cadmium alloy crowns, 500 yuan a. Another is gold alloy crowns, 500 yuan. The other is gold alloy crown, about 1,600 – 1700 or so a. Depending on the actual amount of material. Porcelain crowns also have two kinds, one is nickel-cadmium porcelain crowns, 950 a, the other is gold alloy porcelain crowns, more than 2000 a.