Table 2. Description of the failed implants.
| Patient ID | Gender | Age | Tooth number | Length (mm) | GBR | Stage | Type of placement | Proficiency of the surgeon | Removal time (mo) | Reason for removal |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | M | 62 | 41 | 10 | Yes | 1 | 3 | R | 3 | Thread exposure |
| 2 | F | 84 | 22 | 13 | No | 1 | 1 | R | 4 | Osseointegration failure |
| 3 | M | 77 | 22 | 11.5 | Yes | 1 | 1 | R | 3 | Osseointegration failure |
| 4 | F | 72 | 41 | 10 | Yes | 1 | 1 | R | 0 | Osseointegration failure |
| 5 | F | 82 | 41 | 8.5 | Yes | 1 | 2 | P | 2 | Osseointegration failure |
| 6 | M | 75 | 31 | 11.5 | Yes | 1 | 3 | R | 1 | Osseointegration failure |
M: male, F: female, GBR: guided bone regeneration, R: resident, P: professor.