Table 7.
Comparison Between Push-Out Bond Strength of Different Variables’ Interactions in MPa
| Core material | Surface Treatment | Mean | SD | P-value |
|---|---|---|---|---|
| Composite | Control | 14.5c | 0.9 | 0.020* |
| Silica coating | 18.4c | 1.2 | ||
| Sandblasting | 14.6c | 2.8 | ||
| IPS Empress | Control | 39.9a | 8.2 | |
| Silica coating | 43.2a | 0.5 | ||
| Sandblasting | 24.3b | 3.3 |
Notes: aControlled and silica coating cosmopost attached to IPS empress core. bSandblasted cosmopost attached to IPS empress core. cControlled, silicacoated, sandblasted cosmopost attached to composite core.*Significant at P ≤ 0.05, Statistically, different letters differ significantly.