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Table 1 Comparison of cephalometric measurements and pharyngeal airway measurements between tooth-borne face mask (TBFM) and skeletal anchored face mask (SAFM) patients before treatment. Normal range of pharyngeal airway measurement were not included

From: Comparison of the effects on the pharyngeal airway space of maxillary protraction appliances according to the methods of anchorage

 

Normal data

TBFM

SAFM

P

Mean

SD

Mean

SD

Mean

SD

SNA

81.80

2.82

79.33

2.94

79.53

3.23

0.156

SNB

77.00

2.82

81.02

3.22

80.78

2.96

0.630

N. per. to A

0.40

2.30

−3.02

2.14

−4.37

2.54

0.190

Palatal P.

1.20

4.72

0.74

2.32

0.45

2.42

0.561

Co-A

91.00

4.30

82.61

3.96

81.95

4.32

0.854

Mn. length

113.12

3.62

112.21

4.51

114.19

4.83

0.259

ANB

3.00

1.82

−1.22

1.89

−2.22

2.15

0.094

U1 to SN

105.82

5.82

108.18

8.49

109.09

7.41

0.837

FMA

25.00

2.00

27.91

2.81

27.82

5.24

0.912

IMPA

88.00

2.00

87.72

6.73

85.32

5.51

0.176

SPPS

 

11.46

2.20

11.72

2.26

0.680

MPS

12.26

3.35

13.12

2.68

0.323

IPS

12.56

2.17

11.74

3.26

0.232

SPPA

248.32

52.59

265.14

58.84

0.287

MPA

190.70

23.61

198.70

42.82

0.406

IPA

298.22

60.32

371.97

74.43

0.445

  1. Independent t test, P < 0.05
  2. SD standard deviation