Classmate, I am also a student. Gulou Hospital and Yinchuan Stomatological Hospital are really good, but the cost is amazing. I worked there twice. I suggest you go to the Herentang Dental Clinic opposite the city hospital, which is quite famous in Yinchuan and the price is reasonable. You can call first. You can call 1 14 to check the telephone number of Herentang.