Abstract
Many conceptual issues of orthodontics, to which many scientific papers have been devoted, have remained controversial for decades. One of them is the height of the lower third of the facial region. Most orthodontists have certain difficulties during diagnosis, which they often face in routine work in the clinic during the examination and treatment of patients with distal occlusion. First of all, this is due to the presence of a large number of techniques for determining the height of the lower part of the face [2,5]. Secondly, there are difficulties in finding the reference points on the cephalometric image and interpreting them. Specialists in the field of orthodontics tend to plan the treatment of distal occlusion taking into account the vertical component of the jaws and assert its relationship with sagittal malocclusion. In the treatment of patients with distal occlusion.