Table 6: Marginal bone level data.

Baseline 12 months
Mean (mm)
S.D.
n
Range (mm)
0.22
0.33
143
0.00 – 1.53
0.73
0.39
143
0.0 – 1.87
Distribution  n %  n %
0 mm  97 67.8  13 9.1
0.5 mm  36 25.2  63 44.1
1.0 mm  7 4.9  54 37.8
1.5 mm  3 2.1  11 7.7
2.0 mm  0 0  2 1.4