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Table 6 Inter-group comparisons of Dentoalveolar variables between the control group and UPCB group

From: Three-dimensional quantitative analysis of dental and skeletal characteristics of skeletal Class I unilateral posterior crossbite in adults

 

Control group

UPCB group

  

Mean ± SD

95% CI

Mean ± SD

95% CI

t value

P value

Linear measurements

Maxillary transverse width differences—premolar

      

 Premolar (mm)

− 1.03 ± 2.55

− 1.10, − 2.22

2.21 ± 2.53

1.03, 3.40

− 4.307

0.000*

 Buccal alveolar crest (mm)

− 0.25 ± 2.40

− 1.37, 0.88

1.13 ± 1.84

0.26, 1.99

− 2.026

0.050

 Buccal midalveolar (mm)

− 0.04 ± 2.07

− 1.00, 0.93

0.18 ± 1.59

− 0.57, 0.93

− 0.368

0.715

 Palatal alveolar crest (mm)

− 0.28 ± 2.36

− 1.38, 0.83

1.17 ± 2.13

0.17, 2.16

− 2.023

0.050

 Palatal midalveolar (mm)

− 0.62 ± 2.25

− 1.67, 0.44

− 0.74 ± 1.92

− 1.64, 0.16

0.189

0.851

Maxillary transverse width differences—molar

      

 Molar (mm)

− 0.80 ± 1.99

− 1.73, 0.14

3.16 ± 2.85

1.82, 4.49

− 5.082

0.000*

 Buccal alveolar crest (mm)

− 0.55 ± 1.85

− 1.41, 1.85

0.76 ± 3.52

− 0.89, 2.41

− 1.467

0.151

 Buccal midalveolar (mm)

− 0.27 ± 1.75

− 1.09, 0.55

− 0.11 ± 3.02

− 1.52, 1.31

− 0.211

0.834

 Palatal alveolar crest (mm)

− 0.70 ± 1.72

− 1.50, 0.11

1.45 ± 2.48

0.28, 2.48

− 3.172

0.003*

 Palatal midalveolar (mm)

− 0.38 ± 1.90

− 1.27, 0.52

0.66 ± 2.28

− 0.41, 1.73

− 1.559

0.127

Mandibular transverse width differences—premolar

      

 Premolar (mm)

− 1.27 ± 2.47

− 2.43, − 0.12

7.77 ± 3.56

6.10, 9.43

− 9.334

0.000*

 Buccal alveolar crest (mm)

− 0.77 ± 2.55

− 1.96, 0.43

8.22 ± 2.77

6.92, 9.51

− 10.667

0.000*

 Buccal midalveolar (mm)

− 1.28 ± 3.07

− 2.71, 0.16

8.32 ± 3.48

6.69, 9.95

− 9.247

0.000*

 Lingual alveolar crest (mm)

− 1.06 ± 2.81

− 2.37, 0.26

7.51 ± 4.99

5.17, 9.85

− 6.687

0.000*

 Lingual midalveolar (mm)

− 1.18 ± 3.62

− 2.87, 0.52

9.46 ± 4.53

7.34, 11.57

− 8.198

0.000*

Mandibular transverse width differences—molar

      

 Molar (mm)

− 1.43 ± 1.89

− 2.31, − 0.54

6.42 ± 2.30

5.34, 7.49

− 11.785

0.000*

 Buccal alveolar crest (mm)

− 1.17 ± 2.15

− 2.17, − 0.17

7.72 ± 2.57

6.52, 8.92

− 11.876

0.000*

 Buccal midalveolar (mm)

− 1.59 ± 2.28

− 2.87, − 0.30

8.44 ± 3.17

6.95, 9.92

− 10.691

0.000*

 Lingual alveolar crest (mm)

− 1.25 ± 2.28

− 2.31, − 0.18

8.40 ± 2.23

7.36, 9.44

− 13.553

0.000*

 Lingual midalveolar (mm)

− 1.02 ± 2.64

− 2.25, 0.22

9.76 ± 2.78

8.46, 11.06

− 12.554

0.000*

Angular measurements

Maxillary teeth inclination differences (°)

      

 Premolar (°)

− 1.12 ± 4.39

− 3.17, 0.94

5.37 ± 7.35

1.93, 8.80

− 3.385

0.002*

 Molar (°)

− 3.74 ± 4.90

− 6.03, − 1.44

9.10 ± 9.92

4.46, 13.75

− 5.189

0.000*

Mandibular teeth inclination differences (°)

      

 Premolar (°)

1.57 ± 5.84

− 1.17, 4.30

− 10.06 ± 6.90

− 13.28, − 6.83

5.748

0.000*

 Molar (°)

0.48 ± 6.66

− 2.63, 3.59

− 8.18 ± 8.05

− 11.94, − 4.41

3.707

0.001*

  1. UPCB unilateral posterior crossbite; SD standard deviation; CI confidence interval
  2. Statistically significant when *(P < 0.05)