Demographic characteristics of study population according to implant-abutment connection type
| Variable | Subjects (N) | Numbers of external implants (N = 57) | Numbers of internal implants (N = 30) | |
|---|---|---|---|---|
| Gender | Male | 38 (55.9%) | 27 | 19 |
| Female | 30 (44.1%) | 30 | 11 | |
| Age | < 20 | 0 (0%) | 0 | 0 |
| 20 - 39 | 3 (4.4%) | 1 | 2 | |
| 40 - 59 | 25 (36.8%) | 23 | 6 | |
| 60 - 79 | 36 (52.9%) | 31 | 20 | |
| 80 - 100 | 4 (5.9%) | 2 | 2 | |
| Site | Maxillary posteriors (55.2%) | 26 | 22 | |
| Periodontitis | Status Healthy (2.3%) | 2 | 0 | |
| Slight (11.5%) | 6 | 4 | ||
| Moderate (47.1%) | 22 | 19 | ||
| Severe (39.1%) | 27 | 7 | ||
| Diabetes | Diabetes patient (18.4%) | 9 | 7 | |
| GBR | GBR operate (43.7%) | 24 | 14 | |
| GBR non-operate (56.3%) | 33 | 16 | ||
GBR, guided bone regeneration.
