Must teeth be extracted for orthodontics? Here it depends on the relationship between the patient’s dental arch and the size of the teeth. If there are more teeth, we have to extract individual teeth in order to make the teeth align neatly, clinically speaking, about 50% of patients need to extract teeth. Some patients can also get some improvement of their face shape by extracting teeth. How to take care of orthodontic teeth? During orthodontic treatment, avoid eating harder foods, such as nuts, bones, etc.; avoid eating large pieces of food, for example, eating fruits with a knife into small pieces to prevent the aligners from loosening. During the first few days of each follow-up visit, the teeth will be more or less uncomfortable, so you can eat some soft rice or porridge. After getting used to it, you can resume your normal diet. To clean orthodontic teeth by brushing: First remove the rubber band from the aligner. Place the toothbrush at a 45 degree angle to the gums and brush with short, light pressure for 8-10 seconds per tooth. Include all other teeth on all sides. Then carefully clean the aligners again.