Table 2 Descriptive statistics and group comparison at T1

SNA

82.93 ± 2.00

81.02 ± 2.13

81.71 ± 2.40

81.44 ± 3.31

81.06 ± 3.07

SNB

75.94 ± 1.80

73.66 ± 3.37

74.08 ± 2.34

75.72 ± 3.24

74.83 ± 2.68

FH-NP

83.63 ± 3.30

83.63 ± 4.49

83.25 ± 2.79

84.36 ± 3.01

84.53 ± 2.62

NA-PA^†

15.65/3.70

19.10/11.10

16.25/4.70

11.55/3.60

13.60/4.90

MP-FH

30.31 ± 4.15

27.62 ± 7.09

29.71 ± 5.85

26.70 ± 5.16

29.67 ± 4.38

MP-SN^†

35.65/6.40

35.50/10.0

33.80/9.60

35.05/4.60

36.40/4.60

Co-Go

52.87 ± 5.43

55.34 ± 6.10

54.18 ± 4.84

52.83 ± 3.67

53.52 ± 4.16

Go-Pog

59.59 ± 4.87

57.36 ± 4.71

57.14 ± 3.97

69.20 ± 3.33

56.50 ± 3.22

Co-Pog

95.83 ± 6.48

95.27 ± 5.91

94.58 ± 5.27

102.14 ± 4.06

93.96 ± 4.83

Y Axis Angle

72.54 ± 2.33

73.30 ± 3.86

72.68 ± 2.29

71.71 ± 3.06

73.57 ± 2.57

ANB^†

7.20/1.60

7.70/3.70

7.80/1.40

5.80/1.40

6.05/1.60

Lower Facial Height Ratio^†

53.60/2.3

52.40/2.90

53.05/3.30

53.25/3.80

53.75/3.9

Vertical Ratio^†

1.15/0.10

1.10/0.10

1.10/0.10

1.50/0.20

1.10/0.40

P-A Face Height^†

63.95/4.80

64.40/10.70

65.70/8.00

63.25/2.30

63.35/3.00

U1-SN

110.39 ± 6.37

109.81 ± 7.79

110.33 ± 7.43

107.61 ± 6.74

107.37 ± 6.53

U1-PP^†

28.35/2.30

27.70/5.00

26.30/4.20

27.65/3.30

27.45/4.30

U6-PP

18.80 ± 3.31

20.11 ± 2.21

19.01 ± 2.16

16.58 ± 2.12

19.28 ± 1.83

L1-MP

99.37 ± 2.98

99.34 ± 5.80

97.89 ± 8.58

97.23 ± 6.28

97.95 ± 6.66

U1-L1

113.10 ± 8.08

115.17 ± 8.22

114.84 ± 9.83

120.36 ± 7.37

116.48 ± 7.09

OP-FH

12.94 ± 3.64

11.53 ± 6.24

14.89 ± 3.58

13.99 ± 3.57

12.58 ± 4.23