Hello, if there are not enough positions on both sides, the method of pulling out the first pair of fangs (the fourth tooth) or the second pair of fangs (the fifth tooth) is generally adopted. The dentist will make a full mouth model for you and an appliance based on the model of your teeth. There are two kinds of appliances, one is movable and the other is fixed. Movable ones are cheaper and fixed ones are more expensive, but there is not much foreign body feeling. Just brush your teeth and eat normally every day.