Table 3 Comparison of flexural force between SS-MIs (n = 140) and TA-MIs (n = 140)

1.2

1

31.27

3.21

27.94

1.95

0.012*^†

1.3

1

43.68

3.06

38.34

2.39

< 0.001*^§

1.4

1

64.56

2.82

43.93

2.40

< 0.001*^§

1.5

1

83.10

4.57

60.12

1.42

< 0.001*^§

1.6

1

98.83

5.24

68.13

5.75

< 0.001*^§

1.7

1

119.95

9.93

95.64

10.22

< 0.001*^†

1.8

1

129.89

17.14

109.63

12.17

0.007*^§

1.2

2

42.70

5.70

36.73

2.00

0.005*^§

1.3

2

51.78

2.40

47.60

3.85

0.006*^§

1.4

2

78.32

2.57

54.54

2.93

< 0.001*^§

1.5

2

95.50

2.88

72.63

2.70

< 0.001*^§

1.6

2

101.86

5.04

83.06

4.22

< 0.001*^§

1.7

2

137.79

8.58

112.87

4.87

< 0.001*^†

1.8

2

162.17

9.67

139.84

7.41

< 0.001*^§