Table 4 Multiple regression analysis of maxillary third molar rotation

Before-after (after)

−2.45

0.115

5.38

0.001^†

−3.98

0.008^†

Median line

−0.47

0.653

0.76

0.549

−0.32

0.831

Anchorage (maximum)

−10.35

0.009^†

6.08

0.197

3.24

0.554

Orthodontic appliance (fixed)

4.16

0.323

1.29

0.799

−12.7

0.034^*

Tooth extraction (second premolar)

3.32

0.251

2.21

0.527

−2.88

0.481

Crowding (moderate)

−5.27

0.297

0.46

0.94

5.00

0.482

Crowding (severe)

1.13

0.736

−1.61

0.693

−1.77

0.708

Malocclusion type (Class II)

−5.91

0.192

1.12

0.837

4.88

0.443

Malocclusion type (Class III)

−7.47

0.133

0.46

0.938

12.68

0.071