Table 2.
Shear bond strength after repairing old and new composite substrates
| Procedure | Test results (MPa) | |
|---|---|---|
| Part 1: Repair of old substrates | ||
| 1 | CB no silane (control) | 6.2 ± 4.0 |
| 2 | Silane + CB | 14.8 ± 7.3* |
| 3 | SBU (containing silane) | 15.3 ± 5.3* |
| Part 2: Repair of new substrates | ||
| 1 | CB no silane (control) | 15.4 ± 8.6 |
| 2 | Silane + CB | 23.4 ± 8.3† |
| 3 | SBU (containing silane) | 23.7 ± 5.8† |
Values are given as mean ± standard deviation.
*
Statistically significant difference from the controls (P < 0.001).
†
Statistically significant difference from the controls (P < 0.005).
CB no silane, Clearfil Bond SE without silane; Silane + CB, silanising of composite substrate + Clearfil Bond SE; SBU, Scotchbond Universal.