Table 3 Two-parameter Weibull modulus (m) for different zirconia groups and their characteristic strength (\({\sigma }_{0})\) in Mpa
Materials | Surface treatment | Weibull modulus (m) | Characteristic strength \((\sigma_{{\text{o}}} )\) | ||
|---|---|---|---|---|---|
Initial | Residual | Initial | Residual | ||
Cercon Base (LT) | As-sintered | 14.8 | 10.1 | 1263.6 | 1050.3 |
APA | 12.4 | 11.6 | 1457.2 | 1230.7 | |
Grinding | 13.8 | 6.9 | 925.9 | 722.4 | |
Lava Frame (LT) | As-sintered | 13.1 | 9.2 | 1292.7 | 1060.5 |
APA | 9.3 | 8.2 | 1490.5 | 1276.4 | |
Grinding | 11.6 | 9.8 | 972.4 | 686.5 | |
Katana (HT) | As-sintered | 10.7 | 9.3 | 825.2 | 688.3 |
APA | 8.6 | 7.3 | 875.1 | 768.8 | |
Grinding | 13.9 | 11.2 | 708.3 | 604.2 | |
BruxZir (HT) | As-sintered | 8.1 | 7.2 | 846.9 | 755.7 |
APA | 8.3 | 7.1 | 877.9 | 775.8 | |
Grinding | 7.1 | 6.7 | 696.4 | 611.9 | |