## 3 Results
\begin{table}
\begin{tabular}{c c c c c c c c c c c c} \hline \hline  & \multicolumn{4}{c}{**T-A Group (n = 25)**} & \multicolumn{4}{c}{**B-A Group (n = 25)**} & \multicolumn{4}{c}{**Difference**} & \multicolumn{1}{c}{_p_} & \multicolumn{1}{c}{**Significance**} \\ \cline{2-13}  & **Mean** & **SD** & **95\% CI** & **Mean** & **SD** & **95\% CI** & & & & \\ \hline T2–T1 & & & & & & & & & & & \\ SNA (\({}^{\circ}\)) & 1.43 & 0.72 & 1.13 & 1.73 & 2.07 & 0.91 & 1.69 & 2.44 & 0.63 & 0.009 & * \\ SNB (\({}^{\circ}\)) & \(-\)0.79 & 0.83 & \(-\)1.13 & \(-\)0.44 & \(-\)0.89 & 1.50 & \(-\)1.50 & \(-\)0.27 & 0.98 & 0.77 & NS \\ ANB (\({}^{\circ}\)) & 2.22 & 0.93 & 1.83 & 2.61 & 2.88 & 1.22 & 2.38 & 3.39 & 0.66 & 0.03 & * \\ SN–ANS (\({}^{\circ}\)) & 1.18 & 1.56 & 0.53 & 1.83 & 1.98 & 1.59 & 1.32 & 2.64 & 0.79 & 0.82 & NS \\ MP-SN (\({}^{\circ}\)) & 1.74 & 1.92 & 0.94 & 2.53 & 0.53 & 0.77 & 0.21 & 0.84 & 1.21 & 0.005 & ** \\ UI–SN (\({}^{\circ}\)) & 0.77 & 4.36 & \(-\)1.02 & 2.57 & 1.44 & 5.44 & \(-\)0.80 & 3.69 & 0.66 & 0.63 & NS \\ N–Me, mm & 3.14 & 1.68 & 2.45 & 3.84 & 2.17 & 1.25 & 1.65 & 2.69 & 0.97 & 0.02 & * \\ U6/NF, mm & 1.88 & 1.23 & 1.37 & 2.39 & 0.71 & 0.49 & 0.51 & 0.91 & 1.17 & \(<\)0.001 & ** \\ L6/MP, mm & 1.06 & 1.10 & 0.60 & 1.51 & 1.68 & 1.00 & 1.27 & 2.09 & 0.62 & 0.41 & * \\ Facial A & \(-\)0.77 & 2.10 & \(-\)1.64 & 0.09 & \(-\)0.49 & 1.52 & \(-\)1.12 & 0.12 & 0.27 & 0.60 & NS \\ Y axis & 1.22 & 1.97 & 0.40 & 2.04 & 0.62 & 1.31 & 0.08 & 1.16 & 0.59 & 0.21 & NS \\ Overjet & 4.26 & 2.08 & 3.40 & 5.12 & 4.87 & 2.03 & 4.03 & 5.72 & 0.61 & 0.29 & NS \\ IMPA & \(-\)5.04 & 4.26 & \(-\)6.80 & \(-\)3.28 & \(-\)2.61 & 3.09 & \(-\)3.89 & \(-\)1.33 & 2.42 & 0.02 & * \\ \hline T3–T2 & & & & & & & & & & & \\ SNA (\({}^{\circ}\)) & 1.22 & 2.20 & 0.31 & 2.13 & 1.22 & 1.23 & 0.71 & 1.72 & 0.004 & 0.99 & NS \\ SNB (\({}^{\circ}\)) & 2.71 & 2.42 & 1.70 & 3.71 & 1.66 & 1.32 & 1.11 & 2.21 & 1.04 & 0.65 & NS \\ ANB (\({}^{\circ}\)) & \(-\)1.48 & 1.57 & \(-\)2.13 & \(-\)0.83 & \(-\)0.37 & 1.17 & \(-\)0.86 & 0.10 & \(-\)1.1 & 0.007 & * \\ SN–ANS (\({}^{\circ}\)) & 0.73 & 2.14 & \(-\)0.14 & 1.62 & 1.40 & 1.85 & 0.63 & 2.16 & \(-\)0.66 & 0.24 & NS \\ MP–SN (\({}^{\circ}\)) & \(-\)3.98 & 2.44 & \(-\)4.99 & \(-\)2.97 & \(-\)2.09 & 1.14 & \(-\)2.56 & \(-\)1.62 & \(-\)1.88 & 0.001 & * \\ U1–SN (\({}^{\circ}\)) & 6.13 & 4.63 & 4.21 & 8.04 & 2.35 & 4.71 & 0.40 & 4.29 & 3.78 & 0.006 & * \\ N–Me, mm & 7.09 & 4.12 & 5.38 & 8.79 & 5.60 & 3.17 & 4.29 & 6.91 & 1.48 & 0.16 & NS \\ U6/NF, mm & 2.67 & 1.79 & 1.93 & 3.41 & 1.89 & 1.45 & 1.29 & 2.49 & 0.78 & 0.09 & NS \\ L6/MP, mm & 1.54 & 1.00 & 1.13 & 1.96 & 1.18 & 0.91 & 0.80 & 1.56 & 0.36 & 0.19 & NS \\ Facial A & 2.88 & 2.28 & 1.93 & 3.82 & 1.83 & 1.74 & 1.10 & 2.55 & 1.05 & 0.07 & NS \\ Y axis & \(-\)1.38 & 2.28 & \(-\)2.32 & \(-\)0.43 & \(-\)0.36 & 1.40 & \(-\)0.94 & 0.21 & \(-\)1.01 & 0.06 & NS \\ Overjet & \(-\)1.37 & 1.41 & \(-\)1.96 & \(-\)0.79 & \(-\)1.29 & 2.06 & \(-\)2.15 & \(-\)0.44 & \(-\)0.08 & 0.87 & NS \\ IMPA & 4.72 & 4.56 & 2.83 & 6.60 & 3.14 & 3.80 & 1.57 & 4.71 & 1.57 & 0.19 & NS \\ \hline \hline \end{tabular}
\end{table} 
Table 3: Comparison of skeletal and dental measurements between patients with tooth- and miniscrew-anchored devices at pretreatment (T1), posttreatment (T2), and follow-up (T3). According to the maxillary protraction, the mandible rotated clockwise during treatment (T1-T2), more significantly in the T-A, than in the M-A group (MP-SN: 1.74\({}^{\circ}\) vs. 0.53\({}^{\circ}\), \(p\) < 0.05). However, this regressed in a counterclockwise direction during follow-up, and the amount of change was significantly greater in the T-A group (MP-SN: \(-\)3.98\({}^{\circ}\) vs. \(-\)2.09\({}^{\circ}\), \(p\) < 0.05). The mandibular angle changed in the direction of a decrease due to regression in the counterclockwise direction in both groups after follow-up compared with before treatment.