1.After the initial sticky braces, it is possible that the teeth may feel sore or painful on the same night or the next day, which may affect eating, don’t be nervous, usually 3-5 days will be relieved by itself. 2, orthodontic treatment is the process of tooth movement, treatment of a certain degree of tooth loosening is normal performance, after the end of treatment, the teeth will be restored to stability. 3, the first time to wear fixed aligners may appear local mucosa abrasion or ulcers, usually in one to two weeks to adapt to their own, if the ulcers are serious and frequent can use some ulcer treatment drugs, or to the hospital for follow-up. 4.After the braces are stuck on, the larger chewing force may dislodge or damage them. Do not chew hard, tough and sticky food: ribs with bones, chicken wings, harder nuts, ice cubes, tougher beef jerky, and avoid gnawing apples with your front teeth. 5, you must brush your teeth after each meal, especially the front teeth of the upper jaw, and self-check if the cleaning is in place after brushing. 6, pay attention to always check the aligners for damage, deformation, displacement, etc. If you find that the brackets fall off should, promptly contact the doctor and make an appointment for a follow-up appointment.