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Table 3 Statistical Side Comparisons of Skeletal Variables in 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

  

Right side

Left side

  

Crossbite side

Non-crossbite side

  

Mean ± SD

Mean ± SD

t value

P value

Mean ± SD

Mean ± SD

t value

P value

Morphological measurements of maxilla and mandible

Vertical

        

 Maxillary height (mm)

29.26 ± 2.81

29.23 ± 2.88

− 0.343

0.735

30.23 ± 2.68

30.72 ± 3.08

− 1.946

0.067

 CH (mm)

7.47 ± 1.70

7.22 ± 1.84

0.416

0.682

7.28 ± 2.14

8.01 ± 1.64

− 1.102

0.284

RH (mm)

42.18 ± 3.58

41.77 ± 4.33

0.474

0.641

41.32 ± 4.63

45.50 ± 3.30

− 3.247

0.004*

 CH + RH (mm)

49.64 ± 3.32

48.99 ± 4.26

0.933

0.363

48.60 ± 5.72

53.50 ± 3.09

− 3.337

0.003*

Sagittal

        

 Mandibular corpus length (mm)

82.24 ± 4.25

80.67 ± 4.31

3.633

0.002*

78.34 ± 5.08

81.99 ± 5.39

− 6.731

0.000*

Transverse

        

 Jugal process width (mm)

32.99 ± 1.95

32.66 ± 1.98

0.948

0.355

32.18 ± 2.35

31.87 ± 2.09

1.021

0.320

 Antegonial width (mm)

43.31 ± 2.67

43.64 ± 3.50

− 0.378

0.710

46.60 ± 2.29

40.05 ± 3.27

7.755

0.000*

Positional measurements of condylar

        

 Anteroposterior difference of condylar process (mm)

0 ± 0

0.22 ± 2.09

0.470

0.644

0 ± 0

0.96 ± 3.45

− 1.241

0.230

 Vertical difference of condylar process (mm)

0 ± 0

0.35 ± 1.21

− 1.30

0.209

0 ± 0

0.17 ± 2.18

− 3.40

0.737

 Transverse position of condylar process (mm)

53.22

53.09

− 0.429

0.673

52.12 ± 2.76

51.98 ± 2.78

0.271

0.789

 Angle of condylar process (°)

74.69 ± 6.63

72.47 ± 5.23

2.159

0.044*

73.99 ± 8.38

76.08 ± 6.50

− 0.991

0.334

  1. UPCB unilateral crossbite; SD standard deviation; CH condylar height; RH ramal height; CH + RH condylar-plus-ramal height
  2. Statistically significant when *(P < 0.05)