Table 5.
| Table 5a. Shear bond strength (SBS) data and standard deviations (SD) grouped by failure mode and immersion time. | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Failure Mode | 24 hours | 1 week | 1 month | 3 months | 6 months | |||||
| SBS (MPa) |
SD | SBS (MPa) |
SD | SBS (MPa) |
SD | SBS (MPa) |
SD | SBS (MPa) |
SD | |
| Dominant P/C | 22.1A | 6.7 | 18.1 | 8.4 | 16.7 | 7.7 | 15.0 | 4.0 | 13.8B | 2.1 |
| Complete P/C | 16.5 | 5.1 | - | - | 15.6 | 3.2 | 15.9 | - | - | - |
| Dominant D/P | 21.7 | - | 16.6C | 6.0 | 15.0 | 8.0 | 13.6 | 4.8 | 11.8D | 3.6 |
| Complete D/P | 17.6 | 8.9 | 13.9 | 4.0 | 13.4 | 5.5 | 12.0 | 6.0 | 11.8 | 1.2 |
| Dom. Cohesive | 17.5 | - | - | - | 21.4 | 7.4 | - | - | - | - |
| Comp. Cohesive | 33.5 | 1.2 | - | - | 24.0 | - | - | - | - | - |
| Table 5b. Work to fracture (WTF) data and standard deviations (SD) grouped by failure mode and immersion time. | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Failure Mode | 24 hours | 1 week | 1 month | 3 months | 6 months | |||||
| WTF (N*mm) |
SD | WTF (N*mm) |
SD | WTF (N*mm) |
SD | WTF (N*mm) |
SD | WTF (N*mm) |
SD | |
| Dominant P/C | 35.7 | 22.4 | 31.4 | 30.8 | 19.4 | 20.7 | 15.9 | 8.8 | 14.6 | 3.7 |
| Complete P/C | 21.6 | 15.8 | - | - | 17.9 | 8.4 | 14.9 | - | - | - |
| Dominant D/P | 25.8 | - | 23.8A | 18.0 | 17.2 | 17.0 | 13.5 | 9.4 | 12.7B | 11.8 |
| Complete D/P | 32.3 | 57.2 | 26.9 | 25.8 | 15.0 | 10.1 | 13.5 | 11.8 | 11.6 | 1.6 |
| Dom. Cohesive | 18.0 | - | - | - | 32.9 | 18.6 | - | - | - | - |
| Comp. Cohesive | 61.6 | 2.5 | - | - | 37.1 | - | - | - | - | - |
A
Significantly greater than B (P=0.00133).
C
Significantly greater than D (P=0.00382).
A
Significantly greater than B (P=0.0114).