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Progress in Orthodontics

Table 3 Comparison of incisal and cervical accumulative moved distances (mm) between sides over time - group 2

From: The effects of corticotomy and piezocision in orthodontic canine retraction: a randomized controlled clinical trial

Source

Incisal

Cervical

Mean

S.D.

Exp (β)

C. I.

P value

Mean

S.D.

Exp (β)

C. I.

P value

1 week

Control

0.39

0.21

1.00

-

-

0.19

0.15

1.00

-

-

Piezo

0.30

0.17

0.74

[0.63; 0.86]

0.000*

0.17

0.12

0.83

[0.69; 1.00]

0.055

2 weeks

Control

0.60

0.34

1.00

-

-

0.21

0.12

1.00

-

-

Piezo

0.46

0.28

0.74

[0.64; 0.85]

0.000*

0.22

0.13

0.82

[0.69; 0.98]

0.030*

4 weeks

Control

1.13

0.66

1.00

-

-

0.40

0.26

1.00

-

-

Piezo

0.75

0.30

0.74

[0.64; 0.85]

0.000*

0.30

0.19

0.80

[0.68; 0.94]

0.006*

6 weeks

Control

1.48

0.77

1.00

-

-

0.54

0.31

1.00

-

-

Piezo

1.10

0.54

0.74

[0.64; 0.85]

0.000*

0.39

0.25

0.78

[0.68; 0.90]

0.001*

8 weeks

Control

1.84

0.90

1.00

-

-

0.67

0.42

1.00

-

-

Piezo

1.34

0.68

0.74

[0.65; 0.85]

0.000*

0.45

0.24

0.76

[0.67; 0.87]

0.000*

10 weeks

Control

2.42

1.09

1.00

-

-

0.98

0.50

1.00

-

-

Piezo

1.81

0.89

0.74

[0.65; 0.85]

0.000*

0.71

0.31

0.74

[0.65; 0.84]

0.000*

12 weeks

Control

2.58

1.12

1.00

-

-

1.13

0.56

1.00

-

-

Piezo

2.05

0.91

0.74

[0.65; 0.85]

0.000*

0.80

0.38

0.72

[0.63; 0.83]

0.000*

14 weeks

Control

3.08

1.26

1.00

-

-

1.43

0.61

1.00

-

-

Piezo

2.46

1.13

0.75

[0.65; 0.85]

0.000*

1.01

0.51

0.70

[0.61; 0.81]

0.000*

16 weeks

Control

3.48

1.23

1.00

-

-

1.60

0.58

1.00

-

-

Piezo

2.69

1.14

0.75

[0.65; 0.85]

0.000*

1.15

0.56

0.69

[0.59; 0.80]

0.000*

18 weeks

Control

3.61

1.21

1.00

-

-

1.74

0.83

1.00

-

-

Piezo

2.81

1.33

0.75

[0.65; 0.86]

0.000*

1.21

0.58

0.67

[0.56; 0.80]

0.000*

20 weeks

Control

3.71

1.33

1.00

-

-

1.68

0.69

1.00

-

-

Piezo

2.74

1.44

0.75

[0.65; 0.87]

0.000*

1.37

1.36

0.65

[0.54; 0.79]

0.000*

22 weeks

Control

4.06

0.97

1.00

-

-

2.16

0.75

1.00

-

-

Piezo

2.92

1.16

0.75

[0.65; 0.87]

0.000*

1.30

0.63

0.64

[0.51; 0.79]

0.000*

24 weeks

Control

4.05

0.96

1.00

-

-

2.16

0.58

1.00

-

-

Piezo

2.93

1.11

0.75

[0.64; 0.88]

0.000*

1.42

0.58

0.62

[0.49; 0.79]

0.000*

  1. p values were obtained by marginal log-linear regression. Level of significance = 5%; *, significant (p < 0.05); SD standard deviation, CI confidence interval (95%), Exp. exponential
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