Table 1. Distribution of implants according to risk factor variables.
| Variables | Characteristics | No of Implant (failed implant) | Variable | Characteristics | No of Implant (failed implant) |
|---|---|---|---|---|---|
| Gender | Male | 222 (10) | Additional surgery | Yes | 93 (5) |
| Female | 148 (3) | No | 277 (8) | ||
| Age | < 65 | 300 (11) | Abutment | Ready-made | 279 (4) |
| ≥ 65 | 70 (2) | Customized | 51 (2) | ||
| Systemic condition | Systemic disease* | 93 (4) | UCLA | 17 (0) | |
| Healthy | 277 (9) | Attachment | 16 (0) | ||
| Smoking | Current | 56 (7) | Prosthesis | Single crown | 60 (2) |
| None | 314 (6) | Bridge | 252 (2) | ||
| History of periodontitis | Yes | 286 (4) | Hybrid | 33 (2) | |
| No | 84 (9) | RPD | 4 (0) | ||
| Jaw | Maxilla | 166 (10) | Overdenture | 14 (0) | |
| Mandible | 204 (3) | Occlusal material | Metal/gold | 270 (5) | |
| Position | Anterior | 71 (3) | Porcelain | 63 (1) | |
| Posterior | 299 (10) | Resin | 30 (0) | ||
| Kennedy classification | Distal extension | 219 (4) | Opposing teeth | Natural tooth | 312 (6) |
| Natural tooth | 312 (6) | FPD | 29 (0) | ||
| Tooth bounded | 103 (5) | RPD | 9 (0) | ||
| Edentulous | 48 (4) | CD | 8 (0) | ||
| Length of implant | Short (≤ 8 mm) | 26 (2) | Overdenture | 5 (0) | |
| Long (> 8 mm) | 344 (11) | ||||
| Width of implant | Regular | 306 (12) | |||
| Wide (≥ 5 mm) | 64 (1) |
Systemic disease included diabetes mellitus and/or cardiovascular disease.