Modeling of transversal sizes of the upper and lower jaws and sagittal characteristics of the dental arch in youth-brachycephalic in dependence on the odontometric and cephalometric features indicators

  • А. V. Маrchenko
Keywords: youth-brachycephalic with orthognathic bite, regression analysis, odontometric and cephalometric indices, correct form of dental arc.

Abstract

The article describes and analyzes the regression mathematical models of individual linear sizes necessary for constructing the correct shape of the dental arc in brachycephalic young men with orthognathic bite, depending on the features of odontometric and cephalometric indices. Of the 18 possible linear sizes needed to construct the correct shape of the dental arch in brachycephalic with orthognathic bite, depending on the odontometric and cephalometric characteristics, all 18 valid models (determination coefficient from 0,894 to 0,965) were constructed, Constructed models with a determination coefficient more than 0,6 most often include the size of teeth (74,5 %, of which 20,0 % are upper incisors, 21,8 % — on the lower incisors, 6,4 % — on the upper canine, 8,2 % — on the lower canine, 5,5% — on the upper small corner teeth, 9,1 % — on the lower small corner teeth, 3,6% — on the upper first large corner teeth) than the cephalometric indices (25,5 %). Among the sizes of the upper and lower incisors, the canines, small and first large angular teeth, the most frequent indicators are the following: mesiodistal dimensions of the crown of the teeth (16,4 %, of which 11,8 % on the upper jaw); the vestibule-tongue size of the crown of the teeth (12,7 %, of which 5,5 % on the upper jaw) and the width of the dentin-enamel border in the mesiodistal direction (10,0 %, of which 3,6 % on the upper jaw). Among the cephalometric indicators models most often include: sagittal arc (2,7 %); height of the upper lip (2,7 %); height of the lower part of the face (2,7 %); the height of the red border of the lips (2,7 %),

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References

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Published
2017-09-29
How to Cite
МаrchenkoА. V. (2017). Modeling of transversal sizes of the upper and lower jaws and sagittal characteristics of the dental arch in youth-brachycephalic in dependence on the odontometric and cephalometric features indicators. Reports of Vinnytsia National Medical University, 21(2), 396-400. Retrieved from https://reports-vnmedical.com.ua/index.php/journal/article/view/12