| Design | Prosthetic failures (early loading first) | Implant failures (early loading first) | |
| Payne 2002 | Parallel | No failures | No failures |
| Tawse‐Smith 2002 | Parallel | 5/24, 1/24 | 5/24, 1/24 |
| Fischer 2004 | Parallel | No failures | 1/16, 2/8 |
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