Table 3.
Findings of three-way ANOVA to determine the effects of zirconia type, measurement depth, and zirconia specimen thickness on the Vickers hardness number (VHN) for dual-cure resin cement under PRA and PRZ zirconia disks.
| Source of variation | Sum of squares | df | Mean square | F | p |
|---|---|---|---|---|---|
| Intercept | 948546.511 | 1 | 948546.511 | 63040.071 | <0.001 ∗ |
| Zirconia type | 1699.445 | 1 | 1699.445 | 112.945 | <0.001 ∗ |
| Depth | 10724.956 | 2 | 5362.478 | 356.388 | <0.001 ∗ |
| Thickness | 10033.696 | 3 | 3344.565 | 222.279 | <0.001 ∗ |
| Zirconia type ∗ Depth | 106.596 | 2 | 53.298 | 3.542 | 0.030 ∗ |
| Zirconia type ∗ Thickness | 129.221 | 3 | 43.074 | 2.863 | 0.037 ∗ |
| Depth ∗ Thickness | 287.045 | 6 | 47.841 | 3.179 | 0.005 ∗ |
| Zirconia type ∗ Depth ∗ Thickness | 20.895 | 6 | 3.483 | .231 | 0.966 |
Adjusted R 2 , 0.840. ∗p<0.05.