Table 4 Mean crestal bone level changes, in early loading and conventional loading arms (PPS), 6 months after implant placement

Early loading-arm (N = 38)

No. of patients

38

38

38

38

38

Mean (SD)

1.342 (0.600)

1.903 (0.603)

0.561^a (0.576)

2.102 (0.483)

0.760^b (0.603)

Maximum

2.73

2.96

2.21

3.47

2.15

Third quartile

1.73

2.22

0.88

2.34

1.14

Median

1.25

2.015

0.55

2.05

0.80

First quartile

0.98

1.52

0.17

1.77

0.37

Minimum

0.29

0.48

−0.51

1.24

−0.39

Conventional loading arm (N = 37)

No. of patients

37

37

37

36

36

Mean (SD)

1.355 (0.724)

1.868 (0.521)

0.513^b (0.617)

2.099 (0.558)

0.734^b (0.77)

Maximum

3.01

3.81

1.82

3.74

2.54

Third quartile

1.85

2.07

0.94

2.45

1.185

Median

1.43

1.83

0.49

2.02

0.61

First quartile

0.76

1.58

0.07

1.735

0.14

Minimum

0.27

0.83

−0.71

1.04

−0.66