Shanxi Red Cross Stomatological Hospital will answer your questions: Under normal circumstances, if you don't wear the retainer for enough time after correction, it may rebound and you need to undergo secondary correction. It is suggested to choose a better stomatological hospital and take a photo to see if there is any injury to the root and eliminate the pain caused by other dental diseases. If you are still in the correction review period, you can also contact the attending orthodontist directly to see if the operation is improper (if the force is too strong), resulting in soft tissue tearing and pain. Ask the attending physician for judgment and treatment. I hope your teeth are healthy.