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Table 3 Demographics of the observation periods and observation intervals

From: Comparative evaluation of molar distalization therapy with erupted second molar: Segmented versus Quad Pendulum appliance

 

T1 to T2

T2 to T3

T1 to T3

 

Segmented pendulum group

Quad pendulum group

 

Segmented pendulum group

Quad pendulum group

 

Segmented pendulum group

Quad pendulum group

 

Cephalometric measures

Mean

SD

Mean

SD

pvalue

Mean

SD

Mean

SD

pvalue

Mean

SD

Mean

SD

pvalue

Sagittal skeletal relations

               

 Maxillary position S-N-A

0.30

0.80

0.40

1.10

0.32

0.60

0.60

0.70

0.40

0.14

0.90

0.70

1.10

0.80

0.36

 Mandibular position S-N-Pg

−1.00

0.50

−1.80

0.90

0.18

3.50

0.90

3.00

1.06

0.45

2.50

1.10

1.20

0.80

0.61

 Sagittal jaw relation A-N-Pg

1.00

0.60

1.20

0.40

0.35

−3.00

0.50

−3.00

0.30

0.57

−2.00

0.60

−1.80

0.40

0.26

Vertical skeletal relations

               

 Maxillary inclination S-N/ANS-PNS

0.30

0.60

0.40

0.20

0.12

0.30

0.60

0.40

0.50

0.16

0.60

0.60

0.80

0.40

0.31

 Vertical jaw relation ANS-PNS/Go-Gn

0.40

0.60

0.60

0.50

0.63

0.40

0.40

0.60

0.50

0.14

0.80

0.50

1.20

0.50

0.0113*

 Mandibular inclination S-N/Go-Gn

0.70

0.90

1.20

0.60

0.0038**

0.70

0.40

0.90

0.50

0.47

1.40

0.70

2.60

0.60

0.0026**

Dento-basal relations

               

 Maxillary incisor inclination 1: ANS-PNS

4.10

0.90

6.10

1.10

0.0019**

−5.20

1.10

−9.10

1.00

<0,001***

−1.10

1.00

−3.00

1.10

0.0316*

 Mandibular incisor inclination 1: Go-Gn

0.20

0.60

0.10

0.80

0.59

0.70

0.60

1.10

0.90

0.23

0.90

0.60

1.20

0.90

0.12

 Mandibular incisor compensation 1/A-Pg (mm)

0.10

0.60

0.10

1.00

0.23

0.40

0.50

0.70

0.60

0.22

0.50

0.60

0.80

0.80

0.74

Dental relations

               

 Overjet (mm)

1.90

0.70

3.90

0.50

<0.001***

−4.80

0.80

−5.20

0.40

0.0153**

−2.90

0.80

−1.30

0.50

0.41

 Overbite (mm)

−0.20

0.60

−2.10

0.60

<0.001***

−0.50

0.70

0.80

0.40

0.0471*

−0.70

0.70

−1.30

0.50

0.0185*

 Interincisal angle (1/1)

−4.10

1.10

−5.10

1.20

0.18

7.30

1.10

8.10

0.90

0.51

3.20

1.10

3.00

1.10

0.16

Maxillary dentoalveolar

               

 Molar relationship (mm)

−4.00

1.00

−3.50

0.90

0.48

0.70

0.80

1.00

0.70

0.31

−3.30

0.90

−2.50

0.80

0.16

 U1 horizontal (mm)

1.70

0.70

2.10

0.90

0.67

−2.60

0.40

−3.40

0.40

0.0035**

−0.90

0.60

−1.30

0.70

0.28

 U1 vertical (mm)

−0.4

1.00

−1.60

1.20

0.11

1.00

0.70

1.50

0.80

0.15

1.00

0.90

−0.10

1.00

0.0321*

 U4 horizontal (mm)

1.50

1.20

1.80

0.90

0.16

−2.70

0.30

−2.90

0.20

0.15

−1.20

0.80

−1.10

0.60

0.36

 U4 vertical (mm)

0.30

0.20

0.80

0.90

0.38

0.10

0.40

0.20

0.90

0.44

0.40

0.30

1.00

0.90

0.52

 U6 horizontal (mm)

−4.00

0.90

−3.50

0.70

0.26

2.20

0.60

2.00

0.70

0.49

−1.80

0.80

−1.50

0.70

0.17

 U7 horizontal (mm)

−3.80

1.20

−3.20

0.90

0.42

1.90

0.40

1.90

0.60

0.58

−1.90

0.80

−1.30

0.70

0.16

 U6 vertical (mm)

0.20

0.20

1.10

0.90

<0.001***

0.80

0.60

0.70

0.40

0.37

1.00

0.40

1.80

0.70

<0.001***

 U1 to FH (deg)

3.80

0.90

6.60

1.20

0.0019**

−4.90

0.70

−9.10

0.90

<0.001***

−1.10

0.80

−2.50

1.10

<0.001***

 U4 to FH (deg)

1.60

0.90

2.00

0.70

0.13

−0.90

1.10

−1.30

0.70

0.12

0.70

1.00

0.70

0.70

0.27

 U6 to FH (deg)

−9.60

1.60

−4.60

1.10

<0.001***

10.10

1.10

5.80

0.90

<0.001***

0.50

1.40

1.20

1.00

0.17

 U7 to FH (deg)

−14.60

4.60

−11.60

5.10

0.0454*

13.00

3.40

11.30

4.20

0.53

−1.60

1.40

−0.30

1.00

0.31

Mandibular dentoalveolar

               

 L1 horizontal (mm)

0.20

0.30

0.10

0.40

0.46

0.90

0.70

1.30

0.50

0.0237*

1.10

0.50

1.40

0.50

0.14

 L1 vertical (mm)

0.30

0.20

0.60

0.30

0.54

0.40

0.40

0.50

0.60

0.66

0.70

0.30

1.10

0.50

0.26

 L6 horizontal (mm)

0.10

0.40

0.20

0.40

0.67

0.60

0.40

0.90

0.40

0.13

0.70

0.40

1.10

0.40

0.32

 L6 vertical (mm)

0.30

0.40

0.30

0.50

0.17

1.30

0.60

1.10

0.70

0.12

1.60

0.50

1.40

0.60

0.63

  1. Mann-Whitney U test. *p < 0.05; **p < 0.01; ***p < 0.001.