Guidance: Precautions after your operation: Of course, the most ideal way of tooth care is to brush your teeth after every meal. If it is inconvenient to brush your teeth after meals, you can rinse your mouth with water or tea. 2. During orthodontics, besides following the doctor's instructions, you should also pay attention to nursing the braces on your teeth. You should avoid eating hard food, such as bone food, crabs and nuts, and avoid eating large pieces of food.