It is important to understand the aetiology of malocclusion so that
orthodontic treatments can focus on the prevention of these conditions. Angle was the
first to develop a simple dental relationship assessment based on the sagittal
relationship between the upper and lower permanent molars. Since the introduction of
cephalometric radiographs, hard tissue evaluation through cephalometric analysis has
become an integral part of orthodontic treatment planning because it provides
information such as the skeletal size, position, proportion and symmetry of the
individual by which it is possible to assess skeletal disharmonies. The diagnosis of
skeletal and dental relationships and their contributions to orthodontic treatment will be
addressed in this chapter.
Keywords: Cephalometric analysis, Cone beam computed tomography, Dental
relationships, Linear and angular measurements.
