## 3 Results
\begin{table}
\begin{tabular}{l c c c} \hline \hline
**Variables** & **T0** & **T1** & **T1 – T0** & **Z (\(p\))** \\ \hline \hline  & **Mean and SD** & **Mean and SD** & **Mean and SD** & **Wilcoxon Test** \\ \hline Skeletal variables & & & \\ \hline SNA & 81.6 (3.3) & 82.6 (1.6) & 0.97 (2.74) & \(-\)2.01 (0.04) \({}^{*}\) \\ \hline \hline \end{tabular}
\end{table} 
Table 4: Patients in the study group: cephalometric changes after treatment and statistical analysis results (Wilcoxon signed rank test). \begin{table}
\begin{tabular}{l c c} \hline \hline
**Variables** & **Study Group** & **Control Group** \\ \hline  & **Mean and SD** & **Mean and SD** \\ \hline Skeletal variables & & \\ \hline SNA & 81.6 (3.3) & 81.4 (1.84) \\ \hline SNB & 77.9 (3) & 78.52 (1.77) \\ \hline ANB & 4.95 (2.1) & 3.1 (2.05) \\ \hline SN’GOGN & 31.5 (5) & 30.52 (3.05) \\ \hline FM\({}^{*}\) & 24.4 (4.2) & 24.27 (3.02) \\ \hline MM\({}^{*}\) & 25.3 (4.1) & 27.22 (3.46) \\ \hline Dental variables & & \\ \hline OVB & 4.4 (1.7) & 3.97 (1.35) \\ \hline OVJ & 5.4 (2.1) & 4.67 (1.91) \\ \hline l’MAX & 112.6 (7.6) & 111.25 (4.25) \\ \hline ls-N-FH & 5.6 (4) & 3.95 (2.94) \\ \hline li-N-FH & 1.9 (3.7) & 1.27 (2.6) \\ \hline li’MAND & 93.9 (8.2) & 93.27 (5.15) \\ \hline ls-A-Po & 5.1 (4.3) & 2.95 (4.89) \\ \hline li-A-Po & 1.3 (3.6) & 1.67 (2.54) \\ \hline ls’li & 128.4 (11.4) & 131.07 (4.64) \\ \hline UI-E-line & 1.75 (2.5) & 1.05 (1.98) \\ \hline LI-E-line & 1 (2.8) & 0.22 (1.88) \\ \hline Upper airway spaces dimensions & & \\ \hline Nasopharynx & 11.6 (1.8) & 11.55 (1.88) \\ \hline Oropharynx & 10.6 (1.6) & 9.67 (1.33) \\ \hline Hypopharynx & 11.1 (1.9) & 11.67 (1.56) \\ \hline PNS-P & 35.1 (3.4) & 36.47 (3.4) \\ \hline MP-H & 13 (1.1) & 13.35 (1.25) \\ \hline PH L & 77.6 (5.2) & 77 (3.22) \\ \hline \hline \end{tabular}
\end{table} 
Table 3: Initial cephalometric data in the study and the control groups. \begin{table}
\begin{tabular}{l c c c c} \hline \hline
**Variables** & **T0** & **T1** & **T1 – T0** & _Z (p)_ \\ \hline  & **Mean and SD** & **Mean and SD** & **Mean and SD** & **Wilcoxon Test** \\ \hline SNB & 77.9 (3) & _79.7_ (2) & 1.8 (2.94) & \(-\)3.21 (0.00) \({}^{**}\) \\ \hline ANB & 4.95 (2.1) & 3.3 (1.1) & 1.62 (1.84) & \(-\)2.75 (0.00) \({}^{**}\) \\ \hline SN’GOGN & 31.5 (5) & 31.3 (5.1) & 0.07 (2.74) & \(-\)0.22 (0.82) \\ \hline FM\({}^{*}\) & 24.4 (4.2) & 24.8 (4.3) & 0.35 (2.43) & \(-\)1.11 (0.26) \\ \hline MM\({}^{*}\) & 25.3 (4.1) & 25.7 (3.9) & 0.45 (2.05) & \(-\)0.67 (0.50) \\ \hline Dental variables & & & & \\ \hline OVB & 4.4 (1.7) & 3.5 (0.9) & 0.87 (1.39) & \(-\)1.83 (0.06) \\ \hline OVJ & 5.4 (2.1) & 4.1 (1.9) & 1.42 (2.28) & \(-\)0.91 (0.35) \\ \hline
1’MAX & 112.6 (7.6) & 112.3 (5.8) & 0.2 (6.33) & \(-\)0.22 (0.82) \\ \hline
1s-N-FH & 5.6 (4) & 4.9 (3.2) & 0.5 (2.87) & 0.00 (1.00) \\ \hline
1i-N-FH & 1.9 (3.7) & 1.9 (2.8) & 0.02 (2.04) & 0.00 (1.00) \\ \hline
1i’MAND & 93.9 (8.2) & 91.1 (16.1) & 0.3 (4.35) & \(-\)0.22 (1.82) \\ \hline
1s-A-Po & 5.1 (4.3) & 3.7 (4.1) & 1.07 (4.19) & \(-\)0.45 (0.64) \\ \hline
1i-A-Po & 1.3 (3.6) & 1.1 (3.7) & 0.2 (1.89) & \(-\)0.22 (0.82) \\ \hline
1s’1i & 128.4 (11.4) & 127.8 (8) & 0.6 (6.91) & \(-\)0.22 (0.82) \\ \hline Ls-Le & 1.75 (2.5) & 2.7 (1.8) & 1.12 (1.81) & \(-\)1.64 (0.09) \\ \hline Li-Le & 1 (2.8) & 1.3 (2.4) & 1.05 (2.43) & \(-\)1.37 (0.16) \\ \hline Upper airway spaces & & & & \\ dimensions & & & & \\ \hline Nasopharynx & 11.6 (1.8) & 14.1 (1.5) & 2.52 (0.81) & \(-\)4.24 (0.00) \({}^{**}\) \\ \hline Oropharynx & 10.6 (1.6) & 13.4 (1.5) & 2.87 (0.91) & \(-\)4.24 (0.00) \({}^{**}\) \\ \hline Hypopharynx & 11.1 (1.9) & 14.7 (5.1) & 2.55 (1.05) & \(-\)4.12 (0.00) \({}^{**}\) \\ \hline PNS-P & 35.1 (3.4) & 37.5 (3.2) & 2.42 (1.71) & \(-\)3.53 (0.00) \({}^{**}\) \\ \hline MP-H & 13 (1.1) & 14.8 (1.3) & 1.6 (1.41) & \(-\)4.24 (0.00) \({}^{**}\) \\ \hline PH L & 77.6 (5.2) & 80.2 (5) & 2.72 (1.94) & \(-\)4.24 (0.00) \({}^{**}\) \\ \hline \({}^{*}\)_p_ \(<\)0.05; \({}^{**}\)_p_ \(<\)0.01. & & & \\ \hline \hline \end{tabular}
\end{table}