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Table 3 Results of differences in palatal bone thickness between the two groups (mm, mean ± standard deviation)

From: Palatal bone thickness at the implantation area of maxillary skeletal expander in adult patients with skeletal Class III malocclusion: a cone-beam computed tomography study

 

Class III

Class I

Difference (I–III)

P

Midline

 Y15

6.55 ± 1.91

7.09 ± 1.87

− 0.53 ± 0.43

0.217

 Y12

6.02 ± 1.67

6.41 ± 1.73

− 0.39 ± 0.39

0.316

 Y9

6.00 ± 1.91

6.59 ± 1.64

− 0.58 ± 0.40

0.047*

 Y6

6.41 ± 2.04

7.38 ± 1.74

− 0.96 ± 0.42

0.026*

 Y3

6.83 ± 2.27

7.96 ± 1.79

− 1.13 ± 0.46

0.015*

 Y0

7.00 ± 2.28

7.85 ± 1.73

− 0.85 ± 0.45

0.064

 Y-3

7.04 ± 1.94

7.35 ± 1.73

− 0.31 ± 0.41

0.452

 Y-6

6.44 ± 1.55

6.75 ± 1.89

− 0.31 ± 0.39

0.425

 Y-9

5.37 ± 1.46

5.79 ± 1.69

− 0.42 ± 0.36

0.239

Medial

 Y15

5.47 ± 1.63

5.85 ± 2.30

− 0.38 ± 0.45

0.404

 Y12

4.16 ± 1.25

4.75 ± 1.73

− 0.59 ± 0.34

0.087

 Y9

3.62 ± 1.16

4.34 ± 1.56

− 0.72 ± 0.31

0.022*

 Y6

3.40 ± 1.17

4.15 ± 1.45

− 0.76 ± 0.30

0.012*

 Y3

3.19 ± 1.08

4.03 ± 1.41

− 0.83 ± 0.28

0.004**

 Y0

2.75 ± 1.02

3.56 ± 1.37

− 0.81 ± 0.27

0.004**

 Y-3

2.67 ± 1.04

3.40 ± 1.20

− 0.73 ± 0.25

0.005**

 Y-6

2.19 ± 0.98

2.71 ± 1.01

− 0.53 ± 0.22

0.021*

 Y-9

1.62 ± 0.74

1.99 ± 0.75

− 0.37 ± 0.17

0.029*

Lateral

 Y15

5.19 ± 1.78

5.42 ± 2.38

− 0.23 ± 0.48

0.624

 Y12

3.58 ± 1.36

3.99 ± 1.76

− 0.41 ± 0.36

0.251

 Y9

2.94 ± 1.23

3.28 ± 1.48

− 0.34 ± 0.30

0.267

 Y6

2.41 ± 1.08

2.81 ± 1.34

− 0.40 ± 0.27

0.146

 Y3

2.10 ± 0.99

2.45 ± 1.10

− 0.35 ± 0.23

0.141

 Y0

1.76 ± 0.82

2.04 ± 0.97

− 0.28 ± 0.20

0.166

 Y-3

1.24 ± 0.65

1.62 ± 0.65

− 0.37 ± 0.14

0.012*

 Y-6

0.97 ± 0.52

1.11 ± 0.38

− 0.14 ± 0.10

0.040*

 Y-9

0.79 ± 0.64

1.03 ± 0.40

− 0.24 ± 0.12

0.048*

  1. *P < 0.05; **P < 0.01