Table 1.
Bone-to-implant contact and bone area fraction occupancy by study day and implant type.
| Study day | Dependent variable | Implant type | N | Mean % | Std. deviation | Observed power | Sample size for power 0.80 α = 0.05 1 side | Weight | p-value* |
|---|---|---|---|---|---|---|---|---|---|
| 21 | BIC | NP | 5 | 51.2 | 14.7 | 0.07 | 123 | 12 | 0.072 |
| CP | 5 | 46.5 | 13.9 | 0.05 | 8,748 | 875 | 0.065 | ||
| Control | 5 | 47.0 | 14.0 | ||||||
| BAFO | NP | 5 | 53.1 | 7.6 | 0.13 | 41 | 4 | 0.055 | |
| CP | 5 | 43.8 | 6.0 | 0.11 | 54 | 5 | 0.059 | ||
| Control | 5 | 48.2 | 11.7 | ||||||
| 42 | BIC | NP | 7 | 50.9 | 12.4 | 0.06 | 497 | 31 | 0.070 |
| CP | 8 | 54.4 | 12.8 | 0.14 | 61 | 4 | 0.060 | ||
| Control | 9 | 49.1 | 10.9 | ||||||
| BAFO | NP | 6 | 44.4 | 11.0 | 0.15 | 47 | 3 | 0.084 | |
| CP | 8 | 44.3 | 7.3 | 0.18 | 45 | 3 | 0.055 | ||
| Control | 9 | 49.1 | 9.5 |
BIC bone-to-implant contact, BAFO bone area fraction occupancy, CP cortical perforation, NP no preparation.
*Results adjusted for sample size with power 0.80 and α = 0.05 in one-sided test. The calculated sample size is too small for the approximate calculation performed here to be reliable; hence weight function has been used according to the received sample size.