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Table 3 Comparison of actual and designed tooth movements

From: The predictability of orthodontic tooth movements through clear aligner among first-premolar extraction patients: a multivariate analysis

Measurement#

Actual

Designed

Difference

p value

First molar

Mesial movement

 Mesial buccal cusp*

2.4 ± 1.8

0.2 ± 1.2

2.2 ± 1.9

 < 0.001

 Distal buccal cusp*

2.4 ± 1.6

0.2 ± 1.1

2.2 ± 1.7

 < 0.001

Extrusion

 Mesial buccal cusp*

− 0.4 ± 0.8

0.1 ± 0.4

− 0.5 ± 0.9

0.001

 Distal buccal cusp

− 0.2 ± 0.8

− 0.2 ± 0.6

0.03 ± 1.0

0.837

Mesial tipping*

2.6 ± 7.6

− 2.9 ± 5.7

5.4 ± 7.0

 < 0.001

Canine

 Distalization*

5.2 ± 2.2

6.5 ± 1.6

− 1.3 ± 1.7

 < 0.001

 Distal tipping*

10.2 ± 10.8

− 0.9 ± 9.6

11.0 ± 10.7

 < 0.001

 Lingual tipping*

5.8 ± 6.9

1.4 ± 7.6

4.4 ± 6.6

 < 0.001

 Distal rotation*

5.1 ± 12.8

0.13 ± 12.74

4.9 ± 9.7

 < 0.001

 Extrusion*

0.9 ± 1.6

0.9 ± 1.6

0.1 ± 1.2

0.696

Central incisor

 Retraction*

3.8 ± 2.0

5.7 ± 2.1

− 2.0 ± 1.8

 < 0.001

 Extrusion*

1.6 ± 1.3

0.07 ± 1.28

1.5 ± 1.4

 < 0.001

 Lingual tipping*

10.5 ± 6.6

− 0.2 ± 6.4

10.6 ± 6.6

 < 0.001

  1. #Data (mean ± SD) are displayed in millimeter (linear data) or degree (angular data)
  2. *p < 0.05 indicates statistical significance