I at home do a root canal, and then set the crowns but over here a few months when you eat crowns fell down, want to stick to the oral cavity hospital on expensive but heard that American dental are very expensive, and dare not go. Need to redo root canal therapy? I just want to put my crown back on. I really don't know the price of the United States, if you can charge more than one of the materials in China. We're going to do 200. If it's just the crown, there's no problem with the root canal, but you don't have to redo the root canal.