Table 2 Cephalometric parameters and test for inter-group differences after debonding for group I and II

Sagittal skeletal

SNA [°]

I

82.2

81.1; 83.4

76.1

88.9

II

81.2

79.9; 82.6

77.0

87.4

SNB [°]

I

79.4

78.3; 80.5

73.5

86.0

II

78.0

76.7; 79.3

73.1

83.5

SNPg [°]

I

80.8

79.7; 81.9

74.7

86.9

II

79.8

78.6; 81.0

76.0

85.3

ANB [°]

I

2.8

2.5; 3.2

0.6

4.0

II

3.2

2.8; 3.7

0.0

4.0

Individualised ANB [°] [19]

I

3.0

2.5; 3.4

−0.2

5.3

II

2.9

2.5; 3.3

0.9

4.5

Wits [mm]

I

−1.0

−1.6; −0.4

−4.6

1.4

II

1.2

0.4; 2.0

−2.4

4.5

Wits [mm], men

I

−1.0

−2.1; 0.2

−3.9

1.4

II

1.7

0.8; 2.5

−0.5

4.5

Wits [mm], women

I

− 1.0

−1.7; − 0.3

−4.6

1.1

II

0.4

−1.3; 2.1

−2.4

2.5

Individualised Wits [mm] [22]

I

−1.0

−1.6; −0.3

−4.2

2.8

II

1.5

0.7; 2.4

−2.2

4.6

Vertical skeletal

ML-NSL [°]

I

26.3

24.6; 28.1

13.5

33.7

II

27.9

26.6; 29.3

21.8

32.1

NL-NSL [°]

I

5.9

4.6; 7.2

−1.0

12.2

II

5.9

4.8; 7.1

−0.2

10.7

ML-NL [°]

I

20.4

18.8; 22.1

9.2

27.1

II

22.1

20.8; 23.4

16.9

26.8

SN-Occl [°]

I

17.0

15.6; 18.4

9.5

24.4

II

15.1

13.5; 16.6

8.3

23.2

NSBa [°]

I

129.9

128.2; 131.7

121.5

142.0

II

128.4

126.5; 130.3

118.4

136.2

NSAr [°]

I

122.7

120.8; 124.5

113.2

131.9

II

122.1

120.3; 123.9

114.2

129.7

ArGoMe [°]

I

117.8

115.7; 119.8

105.2

128.7

II

118.3

116.3; 120.2

109.7

127.4

NGoAr [°]

I

50.3

49.0; 51.6

41.7

57.5

II

49.8

48.5; 51.2

43.4

56.2

NGoMe [°]

I

67.5

65.9; 69.1

53.6

72.9

II

68.5

67.6; 69.4

64.4

73.1

Björk compound angle [°]

I

386.3

384.6; 388.1

373.5

393.7

II

387.9

386.6; 389.3

381.8

392.1

SGo:NMe [%]

I

71.4

69.9; 73.0

64.2

81.6

II

69.9

68.6; 71.2

65.6

75.9

Index_Hasund [%]

I

84.7

82.5; 86.9

69.4

97.2

II

79.7

76.8; 82.5

62.2

96.4

Y-axis [°]

I

65.0

63.9; 66.2

58.0

70.3

II

66.2

65.1; 67.2

62.1

69.4

Facial axis_Ricketts [°]

I

93.0

91.7; 94.4

87.1

99.5

II

90.5

89.2; 91.8

85.9

96.1

Dental

OK1/NSL [°]

I

102.6

101.4; 103.9

98.1

110.7

II

95.0

93.4; 96.6

86.7

100.6

OK1/NL [°]

I

71.4

70.2; 72.6

65.6

78.0

II

79.2

77.4; 80.9

73.9

86.8

UK1/ML [°]

I

103.2

101.3; 105.1

92.4

114.9

II

97.3

95.3; 99.4

90.7

106.0

Interincisal angle [°]

I

127.8

125.7; 129.8

118.0

139.1

II

139.7

137.6; 141.9

130.2

149.1

OK1/NA [°]

I

20.4

19.4; 21.5

15.7

25.3

II

13.8

12.4; 15.1

7.8

18.9

OK1/NA [mm]

I

2.9

2.3; 3.5

−0.9

5.9

II

1.0

0.3; 1.7

−2.8

3.4

UK1/NB [°]

I

29.0

27.4; 30.5

18.4

34.8

II

23.3

21.4; 25.1

14.1

30.9

UK1/NB [mm]

I

4.1

3.4; 4.7

1.1

7.7

II

2.6

2.0; 3.3

−0.2

4.6

Soft tissue

Labrale superius–E-line [mm]

I

−3.3

−4.0; −2.6

−7.1

0.6

II

−4.8

−5.5; −4.0

−7.5

−1.6

Labrale inferius–E-line [mm]

I

−1.5

−2.3; −0.7

−6.6

2.2

II

−2.8

−3.7; −1.9

−5.7

1.1

Nasolabial angle [°]

I

105.2

103.4; 107.0

90.9

113.3

II

113.8

110.4; 117.1

102.1

128.1

H-angle [°]

I

11.0

9.8; 12.2

4.0

17.8

II

8.6

7.2; 10.1

2.6

13.9