Braces refer to orthodontic treatment. It is not necessary to extract teeth for people who do not have heavy crowding and who are replacing their teeth, although extractions may be necessary for people with crowded tooth alignment. Braces may require extractions if there is significant tooth alignment crowding. For example, patients with teeth and bone imbalance, large teeth and small bone, it is difficult to align the teeth, in order to align the teeth will be some relatively unimportant teeth in the mouth will be extracted to make room to align the rest of the teeth, to achieve relatively good orthodontic effect. For people with less crowded teeth, braces can generally achieve good orthodontic results without extracting teeth; there are also people in the replacement period, braces do not need to extract teeth, through braces and other reasonable orthodontic treatment, can make the teeth, jawbone normal development, can improve the bad situation. Whether braces need to be extracted or not should be consulted and not decided blindly.