Hello, from what you said, it may be a symptom caused by a tooth defect. If the porcelain crown is to be restored, the cost and materials in different regions are quite different. 2016-12-2209: 55: 02 hello, I'm glad to answer your question. Porcelain teeth are strong and wear-resistant dentures. The price of porcelain teeth is generally around 300 yuan, which belongs to the upper-middle grade dentures.