Hello, my friend, I have finished the correction. At that time, I needed to extract four teeth. The doctor was very gentle. Now he applied a layer of anesthetic on the surface, and then injected anesthesia. The needle is very thin. It doesn’t hurt at all, and I don’t feel anything when the tooth is extracted. Of course, it also has a lot to do with the hospital and doctor you choose. I did it in Shijiazhuang, our best dental clinic, Shijiazhuang Sanbo Dental Clinic, they provide appointment services. No need to wait in line. It's okay. Just choose a good hospital and feel free to do it. My teeth are now neat and beautiful. I wish you good luck.