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Table 1 Distribution of implants according to the period of observation

From: Retrospective analysis of 10,000 implants from insertion up to 20 years—analysis of implantations using augmentative procedures

Year Number of implants Relative number of implants (%)
<1 1920 18.9
1 1175 11.6
2 843 8.30
3 918 9.04
4 794 7.82
5 779 7.67
6 728 7.17
7 578 5.69
8 531 5.23
9 454 4.47
10 346 3.41
11 297 2.92
12 247 2.43
13 169 1.66
14 104 1.02
15 104 1.02
16 56 0.55
17 71 0.70
18 22 0.22
19 19 0.19
20 1 0.01
NA 2 0.02
Total 10158 100.0
  1. NA observation period not clearly determinable