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Table 2 Intra-class correlation coefficient of tooth measurement

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

Measurement

ICC

95%CI

First molar

Mesial movement

 Mesial buccal cusp

0.96

0.87, 0.99

 Distal buccal cusp

0.85

0.56, 0.95

Extrusion

 Mesial buccal cusp

0.94

0.80, 0.98

 Distal buccal cusp

0.86

0.57, 0.96

Mesial tipping

0.90

0.68, 0.97

Canine

 Distalization

0.98

0.92, 0.99

 Distal tipping

0.87

0.62, 0.96

 Lingual tipping

0.89

0.66, 0.97

 Distal rotation

0.93

0.78, 0.98

 Extrusion

0.91

0.71, 0.97

Central incisor

 Retraction

0.95

0.85, 0.99

 Extrusion

0.97

0.90, 0.99

 Lingual tipping

0.98

0.94, 0.99

  1. ICC interclass correlation coefficient