Determination of cephalometric parameters, which usually do not change during surgical and orthodontic treatment depending on facial types according to Garson in Ukrainian young men and young women with orthognathic occlusion

Abstract

Aesthetics is one of the key elements that accompanies modern medicine, in particular, dentistry. The need for treatment not only eliminates the symptoms of the disease but also leads to the restoration or improvement of the aesthetic appearance of the person, and especially the face, gave impetus to the development of new areas of science and technology. An important step in the implementation of such treatments is experimental research to identify the norm for certain categories of the population, primarily according to sex and ethnic group. The aim of the study was to establish the characteristics of cephalometric parameters in Ukrainian young men and young women with orthognathic occlusion, which usually do not change during surgical and orthodontic treatment, depending on sex and facial types. On the basis of the clinic "Vinintermed" teleroentgenography was performed using a dental cone-beam tomograph Veraviewepocs 3D Morita (Japan). Cephalometric examination of lateral teleroentgenograms in 46 young men (aged 17 to 21 years) and 72 young women (aged 16 to 20 years) with orthognathic occlusion was done. The type of face was determined according to the morphological index of Garson. The evaluation of parameters that usually do not change during surgical and orthodontic treatment was performed in the licensed package "Statistica 6.0" using non-parametric methods of evaluation of the results. The percentile ranges of cephalometric parameters, which usually do not change during surgical and orthodontic treatment depending on the facial types of Ukrainian young men and young women with orthognathic occlusion has been established. Pronounced manifestations of sexual dimorphism of cephalometric parameters, which usually do not change during surgical and orthodontic treatment (higher values in young men) are established only for most linear dimensions (values of distances NS, Ar-Go, N-Se, N-CC, P-PTV and S-Ar) in representatives of different types of faces. Both between young men and young women with different face types, there are almost no reliable or tendencies of differences in cephalometric parameters, which usually do not change during surgical and orthodontic treatment.

Regression models of individual teleradiographic indicators according to Ricketts method in Ukrainian young men and young women with different face types

“…Indicators determined by the Ricketts method were divided into three groups [12]. The first group includes the main cephalometric points and measurements used in modern cephalometric analyzes by Schwartz, Ricketts, Steiner, Roth-Jarabak, Burstone and Bjork [11] and are parameters that usually do not change during surgical and orthodontic treatment; to the second group -metric dental-jaw characteristics by the Ricketts method in which the bone skeleton is formed and by which surgical methods it is possible to change the length, width, angles and position of the jaws; to the third group -indicators according to the Ricketts method which characterize the position of each individual tooth relative to each other, cranial structures and the profile of the soft tissues of the face.…”

Determination of normative cephalometric parameters according to the Ricketts method for ukrainian young men and young women with different face types

“…All cephalometric parameters were divided into three groups [7]. The first group includes indicators that usually do not change during surgical and orthodontic treatment, used in modern cephalometric analyzes of Schwartz, Ricketts, Steiner, Roth-Jarabak, Burstone and Bjork [12].…”

Determination of normative cephalometric parameters according to the Downs method for Ukrainian young men and young women with different face types

“…[9], all cephalometric indicators were divided into three groups. The first group includes indicators that usually do not change during surgical and orthodontic treatment, used in modern cephalometric analyzes of Schwartz, Ricketts, Steiner, Roth-Jarabak, Burstone and Bjork and were described by us in previous studies [11].…”