Orthodontic considerations are: 1, dietary habits and chewing: teeth can not chew hard things, avoid eating bones, nuclear fruits, avoid gnawing food with the front teeth; 2, dental cleaning: carry a toothbrush, generally choose a special orthodontic toothbrush, after each meal, the teeth and orthodontic appliances should be clean, while the auxiliary use of tools, including flush that is water floss, orthodontic dental floss, tooth brush; 3, pain and ulcers: tooth soreness and bite weakness situation, will be relieved after a week; ulcers caused by foreign body friction of the orthodontic appliance, can be relieved by local medication; 4, take the correct way to brush teeth: the simpler and more effective method is the Bachmann brushing method, electric toothbrush than ordinary toothbrush.