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Progress in Orthodontics

Table 1 Baseline characteristics and baseline discrepancy index (DI) of the two groups

From: A quantitative three-dimensional comparative study of alveolar bone changes and apical root resorption between clear aligners and fixed orthodontic appliances

 

Fixed appliances (N = 20) Mean ± SD

Clear aligners

(N = 20) Mean ± SD

p value

Age

22.33 ± 4.33

25.15 ± 6.67

0.128

Treatment duration

29.67 ± 7.71

25.85 ± 8.00

0.140

Overjet

0.75 ± 1.07

1.35 ± 1.31

0.121

Overbite

1.05 ± 1.10

1.20 ± 1.28

0.693

Anterior open bite

2.28 ± 3.55

1.00 ± 1.52

0.148

Lateral open bite

2.80 ± 4.42

1.25 ± 1.74

0.158

Crowding

2.25 ± 1.52

1.90 ± 1.17

0.418

Occlusion

2.10 ± 1.77

1.40 ± 1.85

0.229

Posterior crossbite

0.60 ± 1.14

0.55 ± 0.94

0.881

ANB angle

0.25 ± 1.12

0.60 ± 1.88

0.478

SN-MP angle

0.90 ± 3.21

1.19 ± 2.68

0.757

IMPA angle

1.30 ± 2.41

2.25 ± 3.48

0.3.22

Total score

14.38 ± 0.89

12.69 ± 0.52

0.610

  1. SD: standard deviation
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