Hello, I am also a patient of Shanghai Ninth Hospital. I just finished modeling surgery the other day. I had an operation in September. Professor Shen Guofang is in charge of this operation. Model surgery takes a day. When I do it, I take photos on the fourth floor, and then take the mold from the mold taking room, which takes a long time. Then go to the third floor to take an X-ray of the maxillofacial region, then wait, and then go to Building 7 1 Building to do a three-dimensional imaging CT of the maxillofacial region. I still have to wait, but there is no way. There are too many people in the Ninth Hospital. When it's finished, I'll go to your orthodontist, who will tell you about the new model. The whole process takes about 1 day, and I didn't leave until after 5 pm that day. The nurses are all off duty.