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Rate of failures and failure modes
| Subgroups | Failure modes | ||
|---|---|---|---|
| Adhesive (%) | Cohesive (%) | Mixed (%) | |
| Control amalgam | 75 | 25 | |
| Case amalgam | 75 | 25 | |
| Control Ni-Cr | 50 | 25 | 25 |
| Case Ni-Cr | 100 | ||
| Control composite resin | 100 | ||
| Case composite resin | 100 | ||
Ni-Cr: Nickel–chromium
