Orthodontics, from the moment you put on the appliance, you have the power to change the position of your teeth. This is an inevitable reaction to orthodontics. Don't be afraid! For the health and beauty of teeth, you have to make children insist! Generally speaking, however, this severe toothache and weakness will only last for 1-2 days, and then every time I go back to the clinic, I will feel uncomfortable after exertion, but it will not be as painful as it was at first. If you continue, you'd better consult an orthodontist! Also, in the whole orthodontic process, it is more helpful for doctors to help children make their teeth better by asking their feelings, maintaining good communication with doctors and giving timely feedback on their teeth! And according to years of experience, it seems that boys' ability to endure pain is lower than that of girls. You should encourage him to cooperate with the doctor's treatment and complete the treatment as soon as possible, so as to end the discomfort and get beautiful teeth at the same time!