The effectiveness of dental orthopedic manipulations performed by students with different lateralization of brain functions

Abstract

This article highlights the peculiarities of the influence of the dominant hemisphere on the effectiveness of orthopedic dental manipulations. Left-hemisphere and right-hemisphere students dissected the first molar of the lower jaw for a metal-ceramic crown with different hands. The effectiveness of the students' work was evaluated according to the criteria of time spent on preparation (A), thickness of grinding from the occlusal (B) and contact surfaces of the tooth (C), convergence angle (D), and the width of the formed ledge (E). According to the results of the study, it became known that right-hemispheric students working with the right hand showed abnormal results: the A indicator was 16.7 minutes; B - 1.6 mm; C - 1.7 mm; D - 22˚; E - 1.9 mm. The results of these students, revealed when working with the leading hand, correspond to normal parameters: indicator A - 14.5 min; B - 1.7 mm; C - 1.3 mm; D - 14˚; E - 1.2 mm. Left hemispheric students working with the right hand also showed results within the normal range: indicator A - 14.4 min; B - 1.8 mm; C - 1.3 mm; D - 12˚; E - 1.1 mm. The conducted research indicates the need to pay increased attention to the training of left-handed students and to provide this group of students with special educational equipment.