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Table 3 Comparison of cephalometric variables between pretreatment and posttreatment stages for the extraction group (dependent t tests)

From: Posterior teeth angulation in non-extraction and extraction treatment of anterior open-bite patients

Variables (°)

Initial T1

Final T2

P

Mean

SD

Mean

SD

Maxillary teeth mesio-distal angulations

 Mx5.BOP(n = 30)

85.26

3.88

83.64

4.43

0.156

 Mx6.BOP(n = 30)

89.94

4.14

87.00

4.91

0.031*

 Mx7.BOP(n = 24)

102.32

5.24

94.00

5.85

0.000*

  Mx5PP (n = 30)

82.17

6.31

85.02

6.37

0.026*

  Mx6PP (n = 30)

77.49

6.56

81.66

6.88

0.007*

  Mx7PP (n = 24)

65.70

6.88

74.76

6.33

0.000*

Mandibular teeth mesio-distal angulations

 Md5.BOP(n = 30)

77.44

5.99

82.19

5.01

0.001*

 Md6.BOP(n = 30)

76.92

6.10

82.21

5.61

0.000*

 Md7.BOP(n = 24)

73.54

5.24

78.37

6.47

0.003*

  Md5MP (n = 30)

78.60

6.20

72.85

6.88

0.000*

  Md6MP (n = 30)

78.49

6.85

72.83

6.77

0.000*

  Md7MP (n = 24)

80.85

5.70

76.39

7.50

0.001*

Interdental angulations

 Mx5.Md5 (n = 30)

162.00

6.42

165.67

7.91

0.045*

 Mx6.Md6 (n = 30)

166.78

6.91

168.62

6.02

0.150

 Mx7.Md7 (n = 24)

175.45

9.65

168.57

7.09

0.002*

  1. *Statistically significant at P < 0.05