Feature |
Before Treatment n=50 |
After Treatment n=50 |
P< |
Linear Measurements (mm), |
Length of anterior base |
73.3 ± 3.9 |
73.4±3.9 |
|
Length of maxilla |
57.5 ± 3.4 |
57.7± 3.6 |
|
Length of mandible |
79.5 ± 5.2 |
79.5± 4.9 |
|
Distance +1 from NA |
3.5 ± 3.5 |
3.9±3.6 |
|
Distance -1 from NB |
3.0 ± 1.9 |
3.5±2.8 |
0.05 |
The anterior vertical dimension of the
face |
118.7 ± 9.0 |
121.5± 10.2 |
0.001 |
The posterior vertical dimension of the
face |
76.9 ± 8.5 |
76.2 ± 8.6 |
|
Angular Measurements ( 0 ) |
SNA angle |
82.3 ± 4.4 |
82.4 ± 4.2 |
|
SNB angle |
80.9 ± 4.8 |
80.4 ± 4.4 |
|
ANB angle |
1.5 ± 2.0 |
2.6 ± 2.9 |
0.002 |
N-Ba-S angle |
127.7 ± 5.7 |
127.4 ± 5.8 |
|
NSL/NL( maxillary inclination) |
7.0 ± 2.9 |
7.1 ± 3.2 |
|
NSL/ML( mandible inclination) |
23.6 ± 6.8 |
27.5 ± 6.1 |
0.001 |
Inclination of upper incisors |
72.3 ± 11.4 |
72.6 ± 10.8 |
|
Inclination of lower incisors |
87.1 ± 8.1 |
86.4 ± 7.8 |
|
Inter-incisor angle |
141.1 ± 9.1 |
138.7 ± 13.3 |
0.002 |
Ar-Go-N angle |
50.9 ± 3.6 |
49.5±3.7 |
|
N-Go-Me angle |
68.7 ± 4.9 |
71.3±4.5 |
0,001 |
Basal angle |
18.8 ± 6.8 |
25.6±5.7 |
0.001 |
Facial axis angle |
92.3 ± 4.7 |
89.7±9 |
0.001 |