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Table 5 Descriptive data and statistical analysis of the dental, skeletal, and TMJ parameters between T0 and T1

From: Impact of molar teeth distalization by clear aligners on temporomandibular joint: a three-dimensional study

Measurements

T0

T1

T-test

Mean

SD

Mean

SD

Skeletal measurements

SNA

82.32

0.11

81.99

0.19

0.261

SNB

80.12

0.59

79.74

0.61

0.696

ANB

2.20

0.48

2.25

0.43

0.940

MP^SN

36.39

1.46

36.70

2.08

0.913

Dental measurements

U6—VP

18.85

1.16

16.31

1.28

0.032*

U7—VP

9.90

1.21

7.72

0.98

0.003**

MR

3.29

0.32

1.10

0.38

0.000***

L6—VP

17.40

0.48

17.65

0.32

0.71

L7—VP

8.88

0.13

9.09

0.14

0.39

Mandibular fossa dimension

MFH

8.19

1.07

7.75

1.08

0.413

MFW

16.17

1.42

18.78

1.93

0.375

AEH

7.87

1.18

8.05

1.20

0.889

Condylar inclination

MCI

26.38

7.61

24.34

9.57

0.890

VCI

7.04

1.60

7.94

1.98

0.765

APCI

76.86

4.97

76.88

3.99

0.815

Condylar position

VCP

1.71

0.77

1.55

0.53

0.851

APCP

7.34

2.15

7.15

1.55

0.613

MLCP

53.24

2.51

52.66

2.39

0.553

VCJP

5.64

0.45

5.91

0.33

0.425

Condylar dimension

CL

18.94

1.16

19.06

1.06

0.946

CW

10.01

0.79

9.27

0.18

0.388

CH1

11.75

0.74

12.03

1.12

0.666

CH2

5.82

1.12

6.21

0.66

0.642

TMJ spaces

AJS

2.68

1.16

2.78

1.06

0.918

PJS

2.73

1.31

1.79

0.19

0.267

SJS

2.63

0.22

3.19

0.02

0.252

MJS

4.67

0.92

4.36

0.66

0.650

VTJS (mm3)

375.06

17.15

358.70

18.98

0.310

  1. *P < 0.05; **P < 0.01; ***P < 0.0001