| Design | Prosthetic failures (immediate loading first) | Implant failures (immediate loading first) | |
| Testori 2007 | Parallel | 1/25, 0/27 | 1/25, 0/27 |
| Cannizzaro 2008a | Parallel | 0/30, 2/30 | 0/30, 2/30 |
| Cannizzaro 2008b | Parallel | No failures | 1/15, 2/15 |
| Cannizzaro 2008d | Split‐mouth | 1/30, 1/30 | 1/30, 1/30 |
| Merli 2008 | Parallel | No failures | No failures |
| Zöllner 2008 | Parallel | 4/138, 6/128 | 4/138, 6/128 |
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