Assessment of the morphological state of maxillofacial system in patients with malocclusion class II using cephalometric image

Abstract

The aim was to study the analysis of cephalometric images of patients with distal occlusion of the dentition. The parameters obtained on cephalometric images were studied, divided into groups according to the principle of measurements (linear, angular) and their morphological affiliation (cranial, gnathic, dentoalveolar). Analysis of angular and linear cephalometric indicators of patients with malocclusion class II of the dentition made it possible to determine the mutual influence of cranial, gnathic and dental alveolar parameters. The position of the apical base of the upper jaw in the sagittal plane and the position of the chin protrusion relative to the anterior part of the skull base correspond to the average values of the age norm. The angle characterizing the relationship between the plane of the base of the upper and lower jaws is reduced. Angular parameters characterizing the ratio of the anterior points of the apical bases of the upper and lower jaws, the position of the plane of the base of the lower jaw relative to the anterior part of the base of the skull, the total angle Bjork is reduced. The position of the plane of the base of the upper jaw relative to the anterior part of the base of the skull corresponds to the average values of the age norm. The protrusion of the incisors of both the upper and lower jaws is caused by certain changes in their angles of inclination. Changes in the gnathic parameters of cephalometric images had deviations from the norm both in the direction of increase and in the direction of decrease.