Computer-tomographic vestibular-tongue sizes of teeth in boys and girls with normal occlusion depending on face types
Research of computed-tomographic size of teeth in representatives with differenttypes of faces and physiological occlusion allows dentists to make the correct approach toorthodontic treatment of patients in the clinic of orthodontics, orthopedic dentistry andmaxillofacial surgery. The purpose of the work is to establish the limits of the percentilescope and the peculiarities of the computed-tomographic vestibular-tongue sizes of teethin young boys and girls with physiological bite, depending on the type of face. Primarycomputer-tomographic dimensions of the width of the crowns of teeth, the width of theteeth at the anatomical neck, the distance from the anatomical neck to the apex of the rootand the distance from the middle of the cutting edge to the apex of the root of the teeth inthe vestibular-tongue direction, as well as the cephalometric parameters of 44 boys and 50girls with normal occlusion close to the orthognathic bite received from the data bank of theresearch center of the National Pirogov Memorial Medical University, Vinnytsya. Face typewas determined using the Garson morphological index. The statistical processing of theobtained results was carried out using the statistical software package "Statistica 6.0" usingnon-parametric estimation methods. In boys and girls with physiological bite with differenttypes of face the boundaries of the percentile width of the crowns width, the width of theteeth at the level of the anatomical neck, the distance from the anatomical neck to theapex of the root and the distance from the middle of the cutting edge to the apex of the rootin the vestibular-tongue direction are determined. The analysis of gender differences inthe size of the teeth showed that all the indicators of the distance from the anatomical neckto the apex of the root and the distance from the middle of the cutting edge to the apex ofthe root of the corresponding teeth in the vestibular-tongue direction in young boys with abroad face are significantly higher than that of girls with a wide face; the vast majority of thesize of the width of the crowns of teeth and the width of the teeth at the level of theanatomical neck in the vestibular-tongue direction in the young boys with a broad face arealso significantly higher than that of girls with a wide face. Reliable or tendentious differencesin computed-tomographic sizes of the teeth in the vestibular-tongue direction betweengirls with a very wide and wide face are not established. The results broaden theunderstanding of the anatomical structure of permanent teeth in young boys and girls ofPodillia with a physiological bite with different types of faces, which will allow dentists toimprove the efficiency of treatment of defects in teeth and dentitions.
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