Table 1 Comparison of pre-treatment craniofacial morphology of control and treatment samples

Sagittal

 OLp-A point

67.78

3.61

68.31

2.71

0.52

0.53

NS

 OLp-B point

71.87

3.81

74.28

3.38

2.41

0.01

S

 OLp-Pg

74.15

4.34

76.70

4.13

2.54

0.02

S

 OLp-Co

−9.74

2.09

−10.06

3.69

−1.32

0.09

NS

 Wits

−3.62

3.77

−4.22

2.14

−0.60

0.45

NS

 Is-OLp

73.89

4.73

74.13

3.89

0.23

0.83

NS

 Ii-OLp

73.20

3.92

74.12

3.85

0.92

0.36

NS

 Overjet

0.69

2.43

0.01

2.29

0.68

0.26

NS

 Ms-OLp

45.94

3.17

47.05

3.36

1.11

0.19

NS

 Mi-OLp

49.24

3.08

49.63

3.19

0.38

0.63

NS

 Molar relationship

−3.30

1.82

−2.57

1.92

0.72

0.13

NS

Vertical

 OLs-A point

27.04

3.92

29.40

5.22

2.36

0.06

NS

 ANS-Me

59.34

4.22

56.40

4.96

−2.93

0.01

S

 Is-NL

24.36

2.32

23.41

2.23

−0.85

0.15

NS

 Ii-ML

34.10

3.07

34.05

2.48

−0.05

0.94

NS

 Overbite

1.57

1.29

2.31

1.54

0.74

0.06

NS

 Msc-NL

17.81

1.68

18.77

2.41

0.96

0.07

NS

 Mic-ML

25.70

2.37

24.77

2.34

−0.93

0.11

NS

Angular

 SNA

79.65

3.91

80.07

3.80

0.42

0.67

NS

 SNB

77.39

2.77

80.39

3.59

3.09

0.01

S

 ANB

2.36

3.32

−0.29

1.61

−2.66

0.01

S

 SNL-NL

9.64

2.67

9.01

3.30

−0.63

0.41

NS

 SNL-ML

38.83

4.97

32.81

5.01

−6.02

0.01

S

 SNL-OLs

21.92

3.59

20.27

3.75

−1.65

0.06

NS

 Is/SNL

100.17

6.73

102.24

9.02

2.07

0.31

NS

 Ii/ML

86.65

6.73

85.81

7.16

−0.84

0.64

NS

 Interincisal angle

134.20

7.68

139.12

13.30

4.92

0.08

NS