Table 2 Comparison of the mean difference of alveolar bone changes after intrusion movement of the maxillary and mandibular 1st and 2nd molars

Buccal surface

Maxillary right 1st molar

1.66 ± 0.96

1.70 ± 1.35

-0.03 ± 0.85

0.90

Maxillary right 2nd molar

2.56 ± 3.50

1.80 ± 1.01

0.76 ± 3.55

0.49

Maxillary left 1st molar

1.98 ± 1.15

1.79 ± 1.42

0.19 ± 0.67

0.27

Maxillary left 2nd molar

1.37 ± 0.92

1.80 ± 1.09

-0.42 ± 0.77

0.03*

Mandibular right 1st molar

1.77 ± 0.64

2.86 ± 1.75

-1.08 ± 1.48

0.05

Mandibular right 2nd molar

0.97 ± 0.95

1.34 ± 0.59

-0.37 ± 0.61

0.40

Mandibular left 1st molar

2.03 ± 1.72

2.42 ± 1.80

-0.38 ± 0.65

0.14

Mandibular left 2nd molar

0.79 ± 0.21

0.69 ± 0.98

0.1 ± 0.76

0.88

Lingual surface

Maxillary right 1st molar

2.57 ± 0.95

2.61 ± 1.30

-0.04 ± 0.63

0.83

Maxillary right 2nd molar

2.28 ± 1.09

2.51 ± 1.27

-0.23 ± 0.70

0.28

Maxillary left 1st molar

2.30 ± 1.08

2.30 ± 1.36

0.00 ± 0.656

0.99

Maxillary left 2nd molar

2.02 ± 1.32

2.17 ± 1.24

-0.14 ± 0.80

0.45

Mandibular right 1st molar

1.23 ± 1.33

1.53 ± 1.08

-0.30 ± 0.43

0.07

Mandibular right 2nd molar

0.28 ± 0.17

0.81 ± 0.52

-0.53 ± 0.47

0.19

Mandibular left 1st molar

1.16 ± 0.78

1.80 ± 1.26

-0.64 ± 0.76

0.04*

Mandibular left 2nd molar

0.48 ± 0.24

0.82 ± 1.16

-0.34 ± 0.91

0.69

Notes: *(p ≤ 0.05), **(p ≤ 0.001), ***(p ≤ 0.000)