Hello, generally speaking, try not to eat hard food for half a year after orthodontics. Also pay attention to eating less sticky foods such as chewing gum and candy, and pay attention to calcium intake. You should also pay attention to brushing your teeth in the morning and evening. It is best to choose a soft toothbrush. Usually it is best not to eat irritating food, such as food that is too sour, too hot, too cold and too spicy.