Hello, first of all, the basic function of teeth is chewing. Hospitals will protect your teeth more scientifically and protect your dental health, while beauty hospitals pay more attention to beauty, which is not as professional as hospitals! If the position of both sides is not enough, the method of pulling out the first pair of fangs (the fourth tooth) or the second pair of fangs (the fifth tooth) on one side 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.