Parameter | Group | Time point | Changes | ES coefficient | |
---|---|---|---|---|---|
T0 | T1 | ||||
Maxillary | |||||
SNA angle (°) | Treated | 80.6 ± 2.4 | 80.2 ± 2.5 | −0.4 ± 1.3 | 0.1 (−0.6-0.7) |
Control | 79.8 ± 2.7 | 79.5 ± 2.8 | −0.3 ± 1.5 | ||
Difference | NS | NS | NS | NS | |
A to N perp (mm) | Treated | 1.8 ± 2.5 | 1.1 ± 2.9 | −0.7 ± 1.6 | 0.2 (−0.5-0.8) |
Control | 2.2 ± 2.5 | 1.8 ± 2.9 | −0.4 ± 1.6 | ||
Difference | NS | NS | NS | NS | |
Co-A (mm) | Treated | 85.1 ± 3.8 | 87.6 ± 4.3* | 2.5 ± 1.9 | 0.2 (−0.4-0.9) |
Control | 82.7 ± 3.2 | 84.7 ± 3.8* | 2.0 ± 2.1 | ||
Difference | NS | p < 0.05 | NS | NS | |
Mandibular | |||||
SNB angle (°) | Treated | 74.2 ± 2.0 | 74.7 ± 2.3** | 0.5 ± 1.0 | 0.1 (−0.6-0.7) |
Control | 73.6 ± 2.2 | 74.0 ± 2.5 | 0.4 ± 1.2 | ||
Difference | NS | NS | NS | NS | |
Pg to N perp (mm) | Treated | −6.9 ± 3.9 | −7.3 ± 4.5 | −0.4 ± 2.0 | 0.3 (−0.4-0.9) |
Control | −5.0 ± 3.4 | −4.8 ± 4.8 | 0.2 ± 2.1 | ||
Difference | NS | NS | NS | NS | |
Co-Gn (mm) | Treated | 103.6 ± 4.6 | 107.7 ± 5.3*** | 4.1 ± 2.2 | 0.0 (−0.6-0.7) |
Control | 101.9 ± 4.4 | 105.9 ± 6.2*** | 4.0 ± 3.0 | ||
Difference | NS | NS | NS | NS | |
Maxillo-mandibular | |||||
ANB angle (°) | Treated | 6.5 ± 1.5 | 4.8 ± 0.9*** | −1.7 ± 1.2 | 0.8 (−0.1-1.5) |
Control | 6.2 ± 1.2 | 5.5 ± 1.1 | −0.7 ± 1.3 | ||
Difference | NS | NS | p < 0.05 | p < 0.05 | |
Wits (mm) | Treated | 3.8 ± 1.2 | 2.4 ± 1.3* | −1.4 ± 1.1 | 0.1 (−0.6-0.8) |
Control | 3.1 ± 0.8 | 2.0 ± 2.6 | −1.2 ± 2.5 | ||
Difference | NS | NS | NS | NS | |
Max-Mand difference (mm) | Treated | 18.4 ± 3.3 | 20.0 ± 2.9*** | 1.6 ± 1.4 | 0.3 (−0.4-0.9) |
Control | 19.2 ± 2.7 | 21.3 ± 4.3* | 2.1 ± 2.1 | ||
Difference | NS | NS | NS | NS | |
Vertical | |||||
FH-palatal plane angle (°) | Treated | −2.9 ± 3.4 | −2.3 ± 3.8 | 0.6 ± 1.2 | 0.4 (−0.3-1.1) |
Control | −4.6 ± 3.1 | −4.5 ± 2.8 | 0.1 ± 1.3 | ||
Difference | NS | NS | NS | NS | |
FH-mandibular plane angle (°) | Treated | 22.5 ± 4.9 | 22.2 ± 5.1 | −0.3 ± 1.1 | 0.4 (−0.3-1.1) |
Control | 22.2 ± 4.9 | 22.5 ± 4.6 | 0.2 ± 1.3 | ||
Difference | NS | NS | NS | NS | |
Palatal plane-mandibular plane (°) | Treated | 25.4 ± 3.1 | 24.4 ± 3.0** | −0.9 ± 1.3 | 0.6 (−0.0-1.3) |
Control | 26.8 ± 5.3 | 26.9 ± 4.9 | 0.1 ± 1.7 | ||
Difference | NS | NS | NS | NS |