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Table 3 Measurements of TMJ according to sex, age, and side in skeletal Class III malocclusion

From: Comprehensive positional and morphological assessments of the temporomandibular joint in adolescents with skeletal Class III malocclusion: a retrospective CBCT study

 

Total

Males

Females

P

Early

Middle

Late

P

Right

Left

P

(n = 90)

Ratio

SD

(n = 43)

SD

(n = 47)

SD

(n = 30)

SD

(n = 30)

SD

(n = 30)

SD

(n = 90)

SD

(n = 90)

SD

TMJ space

 MS

2.09

1.00

0.57

2.19

0.62

1.99

0.51

0.098

2.21

0.62

2.17

0.53

1.89

0.53

0.065

2.08

0.66

2.10

0.84

0.806

 LS

1.86

0.89

0.49

1.92

0.55

1.80

0.43

0.268

1.91

0.49

1.84

0.43

1.82

0.55

0.744

1.76

0.55

1.95

0.74

0.052

 SS

2.36

1.25

0.75

2.61

0.79

2.12

0.64

0.002**

2.22

0.72

2.30

0.81

2.55

0.71

0.211

2.32

0.80

2.40

1.22

0.604

 AS

1.88

1.00

0.57

1.92

0.64

1.82

0.50

0.379

1.79

0.37

1.88

0.55

1.93

0.75

0.640

1.84

0.63

1.90

0.82

0.596

 PS

1.91

1.01

0.45

1.98

0.50

1.86

0.40

0.216

2.15

0.46

1.86

0.38

1.74

0.43

0.001**

1.87

0.52

1.96

0.70

0.327

 Anteroposterior condylar position

0.02

 

0.15

0.02

0.16

0.02

0.15

0.915

0.88

0.11

0.00

0.13

− 0.03

0.19

0.005**

0.01

0.19

0.03

0.26

0.594

TMJ shape

 MIC

16.66

 

4.05

16.72

3.99

16.61

4.14

0.894

16.65

4.00

17.44

3.18

15.90

4.79

0.341

15.92

5.71

17.40

7.80

0.150

 LIC

16.99

 

4.76

16.54

4.98

17.39

4.55

0.402

18.07

4.51

17.58

3.64

15.31

5.60

0.055

16.01

4.78

17.96

8.29

0.056

 AIC

26.96

 

5.64

26.63

5.74

27.26

5.58

0.599

25.09

5.65

27.51

6.09

28.28

4.78

0.07

26.58

7.85

27.34

10.19

0.574

 PIC

27.60

 

5.67

28.23

5.61

27.03

5.72

0.318

26.02

3.59

28.05

4.94

28.75

7.56

0.154

26.74

7.90

28.47

8.68

0.163

 HF

6.47

 

1.06

6.60

1.25

6.34

0.84

0.244

6.00

0.88

6.76

0.84

6.64

1.27

0.010*

6.6

1.19

6.33

1.44

0.175

 WF

18.81

 

1.87

18.68

2.04

18.94

1.71

0.510

17.91

1.94

19.00

1.76

19.53

1.56

0.002**

18.65

1.80

18.98

3.40

0.425

 AEH

5.85

 

1.27

5.89

1.47

5.82

1.07

0.804

5.35

1.16

6.09

1.14

6.13

1.39

0.027*

5.68

1.32

6.03

2.29

0.21

 AEI

46.81

 

12.76

50.34

13.65

43.58

11.07

0.011*

43.03

12.87

46.14

9.17

51.26

14.63

0.039*

44.86

13.11

48.76

21.22

0.14

 LAC

18.33

 

1.93

18.97

1.91

17.75

1.77

0.002**

18.09

1.64

18.16

2.14

18.75

1.97

0.358

18.56

2.13

18.11

3.49

0.406

 MAC

8.82

 

0.89

8.92

1.03

8.72

0.74

0.287

8.71

0.81

8.96

0.98

8.79

0.89

0.556

8.86

0.95

9.00

1.50

0.053

  1. P, P value; MS, medial space; LS, lateral space; SS, superior space; AS, anterior space; PS, posterior space; MIC, medial inclination of the mandibular condyle; LIC, lateral inclination of the mandibular condyle; AIC, anterior inclination of the mandibular condyle; PIC, posterior inclination of the mandibular condyle; WF, width of the glenoid fossa; HF, height of the glenoid fossa; AEH, articular eminence height; AEI, articular eminence inclination; LAC, long axis of the condyle; MAC, minor axis of the condyle
  2. *P < 0.05; **P < 0.01; ***P < 0.001
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BMC Oral Health

ISSN: 1472-6831

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