Table 7.
Linear regression model (backward stepwise) for predicting the average biological width and the average marginal bone loss after including all the potential predictors (time of implant placement and grade of surface treatment). * For these analyses, the mechanized implants placed on the M1 were excluded to assess the true effect of the platform configuration. † F = 6.97: df:2; p-value = 0.001. R2 = 0.29. ‡ F = 3.17: df:2; p-value = 0.031. R2 = 0.14.
| Dependent Variable/Parameters | Standardized β | p-Value | β | CI-95% β | |
|---|---|---|---|---|---|
| Lower | Upper | ||||
| Average Biological Width † | |||||
| Constant (mm) | <0.001 | 3.5 | 2.9 | 4.1 | |
| Time of placement (immediate as reference) | −0.43 | 0.001 | −1.0 | −0.5 | −1.6 |
| Grade of surface treatment (none/half/full) | 1.0 | 0.007 | 1.1 | 0.3 | 1.9 |
| Average Marginal Bone Loss ‡ | |||||
| Constant (mm) | <0.001 | 0.8 | 0.6 | 1.1 | |
| Time of placement (immediate as reference) | −0.24 | 0.04 | −0.3 | −0.1 | −0.5 |
| Grade of surface treatment (none/half/full) | −0.83 | 0.02 | −0.4 | −0.1 | −0.8 |