Since correction is involved, if the doctor thinks that tooth extraction is necessary, it is necessary. Moreover, the purpose of tooth extraction is to leave enough space for future correction, so as to achieve the purpose of neat and beautiful teeth arrangement. In the process of orthodontics, teeth may be sensitive to cold and heat, but as long as they are corrected and maintained in the later stage, there should be no problems you are worried about.
In addition, I would like to remind you that you will feel uncomfortable when you just put on the appliance, such as grinding your teeth. At this time, you can put a bubble gum to isolate it, and then go to the doctor for examination.