Ekaterinburg, Russian Federation
Yekaterinburg, Ekaterinburg, Russian Federation
employee
Ekaterinburg, Ekaterinburg, Russian Federation
employee
Ekaterinburg, Ekaterinburg, Russian Federation
Ekaterinburg, Ekaterinburg, Russian Federation
Ekaterinburg, Ekaterinburg, Russian Federation
Yekaterinburg, Ekaterinburg, Russian Federation
employee
Yekaterinburg, Ekaterinburg, Russian Federation
student
Yekaterinburg, Ekaterinburg, Russian Federation
UDK 616.31 Стоматология. Заболевания ротовой полости и зубов
The aim of study is to analyze the results of the development of the dentofacial system after traumatic dental injuries in children with class II division 1 dental malocclusion and prominent of the upper incisors according to cephalometric data. Materials and methods. The analysis of teleroentgenogram in the lateral projection was performed using the Steiner method in 30 children aged 6–9 years immediately after traumatic dental injuries to the upper permanent incisors, in the same 30 children at a late stage at the age of 9–12 years, in 30 children of the control group at the age of 9–12 years. For the calculation, anthropometric points, planes, angular values were used, the structure of the dental system was assessed in 2 planes: sagittal (parameters ANB, SNA and SNB) and vertical (parameters NSL/NL, NSL/ML and NL/ML), the axial inclination of the upper and lower incisors was assessed (parameters ILs/NL, Ili/ML, Ils/Ili). Results. In children with class II division 1 dental malocclusion and prominent of the upper incisors, in the late stages after traumatic dental injuries to the upper permanent incisors, dentoalveolar anomalies become more severe: the skeletal form of class II division 1 dental malocclusion with prognathism of the upper jaw and retrognathia of the lower jaw increases, anterior rotation of the lower jaw is preserved in combination with a hypodivergent structure of the facial skeleton, the axial inclination of the upper and lower incisors decreases, and the interincisal angle increases proportionally. Conclusions. After traumatic dental injuries to the upper permanent incisors in children, the severity of class II division 1 dental malocclusion increases in the long term, sagittal growth of the upper jaw continues with a decrease in the growth rate of the lower jaw in the sagittal and vertical direction, and a retrusive axial inclination of the upper and lower incisors is formed.
traumatic dental injuries, class II division 1 dental malocclusion, prominent of upper incisors, permanent teeth, children, orthodontics, cephalometric
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