Hello, too big food, such as apples and pears, should be cut into small pieces before eating. Hard food, such as ice cubes, nuts, hard biscuits, sugar cane, hard candy, crabs, lobster shells, etc. You should also quit bad habits such as biting pens and nails; Too sticky food, such as toffee, maltose and some biscuits, chewing gum should be chewed with sugar-free ingredients; Of course, in order to avoid dental caries, we should eat less sweets during correction.