Generally can not be alone to correct two incisors, if orthodontic correction, usually the whole mouth. 1. Orthodontic correction of teeth, correction of not only teeth, and occlusal relationship, only two incisors is unrealistic, on the one hand, we have to consider the relationship between incisors and neighboring teeth, but also to consider the occlusal relationship between incisors and maxillary teeth. Moreover, if the back teeth are not straightened, it is impossible to make space for the front teeth to be aligned, so it is necessary to straighten the whole mouth. 2. In addition, no matter which orthodontic method is adopted, a certain orthodontic force must be applied to the misaligned teeth, arches or jaws, and this orthodontic force often requires the back teeth to act as a support. It is advisable to consult a medical professional if two incisors can be corrected individually.