Analysis of lateral teleroentgenograms in pediatric patients with grade III vertical disocclusion of the dentition

Abstract

Aim of the study was to study lateral TRG in 43 patients with grade III vertical disocclusion of the dentition at the age of 7 to 18 years. Material and methods. Lateral telerentgenogram were used to study the angle indices SN-NL, SN-ML, NL-ML, showing the ratio of the upper and lower jaw relative to the base of the skull and relative to each other. The highest values of the SN-NL angle were observed in children of 1 group at the age of 18 years 9.0, in 2 group at the age of 18 years 9.3, in 3 group at the age of 17 years 8.9. The lowest values of the SN-NL angle were observed in children of group 1 at the age of 7, 8, 10 years 7.5, in group 2 at the age of 7 years 8.5, in group 3 at the age of 7 years 8.4. The highest values of the SN-ML angle were observed in children of group 1 at the age of 15, 16, 17, 18 years 33, in group 2 at the age of 18 years 37, in group 3 at the age of 17, 18 years 36. The lowest indices of the angle SN-ML was the children 1 age group 12 years 31 in group 2 at the age of 11 33, group 3, ages 11, 12, and 13 34. The highest values of NL-ML 34 angle were observed in children aged 17 years from group 1, in group 2 at age 17, 18 years 33, in group 3 at age 13, 14 and 18 years 30. In children of group 1 aged 7, 8, 11, 2 groups at the age of 9, 10 and 3 groups at the age of 8 years identified the least parameters of an angle NL-ML 28, 28, 27, respectively. Results. As a result of the study, it was noted that in children with vertical dysocclusion of the dentition of the third degree, the angles SN-NL, SN-ML, NL-ML have high indicators, which characterizes the vertical type of skull growth.