Short tooth roots are formed by congenital development and it is not possible to improve the length of the roots. If you are talking about how to get orthodontic treatment for short tooth roots, the main thing is to use slight force during orthodontic correction. If the root of the tooth is too short, then orthodontic treatment is not recommended. The short tooth root should be based on the degree of shortness to determine whether it is possible to do orthodontic treatment, for example, the degree of the crown-root ratio of about 1/2, relatively speaking, is to do orthodontic treatment will be safer. However, it is also important to note that slight force should be used during orthodontic correction. However, if the root of the tooth is too short, for example, the crown-root ratio is less than 1/2, or even shorter, then orthodontic treatment is usually not recommended in this case, or the patient is able to accept the risk of loosening the tooth, or even extraction. Consultation with a medical professional is specifically recommended.