Models of individual line ardimensions needed to build the correctform of the dental archin girls depending on the characteristics odontometric and cephalometric indicators
The article describes and analyzes regression mathematical models of transversal dimensions of the upper and lower jaw and sagittal characteristics of the dental arc depending on the odontometric and cephalometric characteristics of girls with orthognathic bite. Of the 18 possible linear sizes required for constructing the correct form of the dental arc, 14 have been modeled with a determination coefficient greater than 0.6 (the determination coefficient is from 0.631 to 0.804). Constructed models with a determination coefficient more than 0.6 most often include the size of the teeth (69.2%, of which 26.9% - upper incisors, 18.3% - lower incisors, 3.8% - upper canine, 11,5% - lower canine, 4,8% - upper small corner teeth, 3,8% - lower small corner teeth) than cephalometric indices (30,8%). Among the sizes of teeth models most often include the following indicators: mesiodistal dimensions of the crown of the teeth (17.3%, of which 13.5% on the upper jaw); the length of the teeth (11.5%, of which 5.8% on the upper jaw) and the width of the dentin- enamel border in the mesiodistal direction (10.6%, of which 2.9% on the upper jaw). Among the cephalometric indicators, models most commonly include: average face width (4.8%), maximum head width and mouth width (2.9%).