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Table 3 Class I descriptives and Wilcoxon signed-rank test statistics

From: Quality of occlusal outcome in adult class II patients after maxillary total arch distalization with interradicular mini-screws

                

Wilcoxon signed-rank test

 

T1

    

T2A

    

T2B

    

T1-T2B

T2A-T2B

Variables

Mean

SD

95% CI

Min

Max

Mean

SD

95% CI

Min

Max

Mean

SD

95% CI

Min

Max

Sig

Sig

Total score

39.43

10.88

35.95–42.90

20

61

11.58

4.56

10.12–13.03

4

22

17.73

5.71

15.90–19.55

8

31

< 0.001

< 0.001

AR

21.80

6.24

19.80–23.80

11

39

2.05

2.32

1.31–2.79

0

12

4.65

2.35

3.90–5.40

1

12

< 0.001

< 0.001

MR

4.00

2.33

3.25–4.75

0

9

2.73

1.72

2.17–3.28

0

6

3.33

1.93

2.71–3.94

0

8

0.044

0.060

BI

4.22

2.61

3.39–5.06

0

11

2.18

2.40

1.41–2.94

0

10

4.23

2.49

3.43–5.02

0

11

0.903

< 0.001

OJ

4.65

3.72

3.46–5.84

0

18

0.73

1.13

0.36–1.09

0

4

1.85

1.53

1.36–2.34

0

8

< 0.001

< 0.001

OC

1.30

2.46

0.51–2.09

0

13

1.23

1.93

0.61–1.84

0

8

1.20

1.98

0.57–1.83

0

9

0.661

0.759

OR

2.95

2.75

2.07–3.83

0

10

2.73

2.14

2.04–3.41

0

8

2.40

2.07

1.74–3.06

0

8

0.109

0.331

IC

0.53

1.34

0.10–0.95

0

6

0.00

0.00

0.00–0.00

0

0

0.08

0.35

−0.04 - 0.19

0

2

0.051

0.180

OvB

3.06

1.71

2.52–3.61

0.00

8.20

2.17

0.50

2.01–2.33

1.00

3.10

2.17

0.55

2.00–2.35

1.00

3.50

0.002

0.708

A-P

−0.05

0.75

−0.29 - 0.19

−2.50

1.50

0.05

0.63

−0.16 - 0.25

−1.50

2.00

−0.13

0.60

−0.32 - 0.06

−2.00

1.10

0.656

0.042

  1. SD standard deviation, 95% CI 95% confidence interval for mean, Sig significance (p-value), AR alignment, MR marginal ridges, BI buccolingual inclination, OJ overjet, OC occlusal contacts, OR occlusal relationship, IC interproximal contacts, OvB Overbite (mm), A-P anterior-posterior relationship at first molar (mm)