Differences in the structure of the skull's facial part in mesial and orthognathic bite

Abstract

By comparing lateral cephalogram morphometric aspects of the structure of the facial part of the skull to the norm, dentofacial abnormalities in individuals with mesial occlusion were better identified.

Indicators of incisor retrusion, premolar distal inclination, and molar mesial displacement were found in the upper dentoalveolar region. That is, a propensity for an open and direct bite.

The incisors protruded, the lateral teeth were angled forward, and the lower arch was anteposed to the upper arch in the lower dentoalveolar region.

In the gnathic part, maxillary retrognathia was discovered, partly as a result of micrognathia, as well as mandibular prognathia caused by excessive growth of the lower jaw and its forced forward displacement. In the border areas, an underdevelopment of the main bone was discovered, which affects the development of the cranial part of the face and is dependent on the development of the upper jaw. All of the aforementioned breaches result in a violation of dental and facial aesthetics.