Table 3 Quantitative measurements of histologic parameters at the bone-implant interface
| Â | Bone contact (%) | Soft tissue contact (%) | Void space (%) |
|---|---|---|---|
Co-Cr alloy (n = 9) | 34.5 ± 15.9 | 13.7 ± 12.1 | 51.8 ± 9.2 |
 12 weeks (n = 3)  24 weeks (n = 3)  52 weeks (n = 3) | 27.8 ± 5.9 35.8 ± 12.2 39.9 ± 26.8 | 12.7 ± 8.0 15.2 ± 16.6 13.3 ± 15.6 | 59.5 ± 4.7 49.0 ± 6.8 46.9 ± 11.4 |
Pyrocarbon (n = 9) | 30.2 ± 20.4 | 17.4 ± 11.6 | 52.4 ± 19.2 |
 12 weeks (n = 3)  24 weeks (n = 3)  52 weeks (n = 3) | 20.8 ± 6.3 45.5 ± 11.3 24.5 ± 31.3 | 20.6 ± 16.3 17.1 ± 7.8 14.4 ± 19.5 | 58.5 ± 5.3 37.5 ± 7.5 61.3 ± 21.0 |
p value (paired t test) | 0.617 | 0.470 | 0.964 |