Determination of individual cephalometric characteristics of the occlusal plane in Ukrainian young men and young women with orthognatic bite


  • M. O. Dmitriev National Pirogov Memorial Medical University, Vinnytsya, Ukraine
  • I. V. Gunas National Pirogov Memorial Medical University, Vinnytsya, Ukraine
  • I. V. Dzevulska Bogomolets National Medical University, Kyiv, Ukraine
  • I. V. Zhulkevych I. Horbachevsky Ternopil State Medical University, Ternopil, Ukraine
Keywords: occlusal plane, cephalometry, regression analysis, young men and women, orthognathic bite.

Abstract

To date, there are no clear recommendations on the use of a particular indicator, cephalometric method, normative basis for the inhabitants of Ukraine when assessing the cephalometric characteristics of the occlusal plane. The purpose of the study - by studying cephalometric indices and conducting direct stepwise regression analysis - develop in young men and women of Ukraine with orthognathic bite mathematical models of individual characteristics of the position of the occlusal plane. In 38 young men (aged 17-21 years) and 55 young women (aged from 16 to 20 years) with occlusion close to orthognathic bite and balanced faces, lateral teleroentgenograms were obtained using the Veraviewepocs 3D device, Morita (Japan). Cephalometric analysis was performed using OnyxCeph³™ software. Cephalometric points and measurements were performed according to the recommendations of W. B. Downs, J. McNamara, R. A. Holdway, P. F. Schmuth, A. M. Schwarz, C. C. Steiner and C. H. Tweed. In the licensed statistical package "Statistica 6.0", using regression analysis, the following teleroentgenographic characteristics of the position of the occlusal plane were simulated: the angle YGOCLPl, the angle POR_DOP, the angle POR_OCP, and the SN_OSP angle. It was established that in both young men and women, all four possible models with a determination coefficient from 0.808 to 0.998 in young men and from 0.832 to 0.974 in young women were constructed. In the analysis of models of teleroentgenographic characteristics of the position of the occlusal plane, depending on the peculiarities of the metric characteristics of the craniofacial complex, it was found that in young men the most frequent regression equations include - the Wits indicator (21.1% for all four equations), the angle AB_NPOG (15.8%) and the distance PN_POG (10.5%). In young women, most often the regression equations include - Wits indicator (17.4% - also to all 4 equations); angle AB_NPOG, distance AFH, angle MM and angle SN_GoGn (by 8.7%). So, using the method of stepwise regression, among Ukrainians of juvenile, based on the features of teleroentgenographic indicators, reliable models of individual cephalometric characteristics of the occlusal plane were created.

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Published
2018-12-27
How to Cite
Dmitriev, M. O., Gunas, I. V., Dzevulska, I. V., & Zhulkevych, I. V. (2018). Determination of individual cephalometric characteristics of the occlusal plane in Ukrainian young men and young women with orthognatic bite. Biomedical and Biosocial Anthropology, (33), 5-11. https://doi.org/https://doi.org/10.31393/bba33-2018-1