Table 6.
Post-fractures
| Post-fracture | n (1) | n (2) | (1) | (2) | p-value | OR (95% CI) |
|---|---|---|---|---|---|---|
| Upper (1) vs. lower (2) | 73 | 55 | 0 (0%) | 4 (7.3%) | 0.032 | - |
| Smoker (1) vs. non-smoker (2) | 97 | 31 | 2 (2.1%) | 2 (6.5%) | 0.247 | 0.31 (0.04–2.31) |
| Plaque > 40% (1) vs. plaque ≤ 40% (2) | 33 | 94 | 0 (0%) | 115 | 0.572 | - |
| Students (1) vs. non-students (2) | 83 | 45 | 3 (3.6%) | 1 (2.2%) | 1.000 | 1.65 (0.16–16.52) |
| Denture wearing: day only (1) vs. night and day (2) | 39 | 89 | 4 (10.3%) | 0 (0%) | 0.008 | - |
| Cleaning: < 2/day (1) vs. > 2/day (2) | 98 | 30 | 4 (4.1%) | 0 (0%) | 0.572 | - |
| Design: non-cover (1) vs. cover (2) | 29 | 99 | 1 (3.4%) | 3 (3.0%) | 1.000 | 0.88 (0.09–8.83) |
| Abutment-teeth: ≤ 3 (1) vs. > 3 (2) | 114 | 14 | 0 (0%) | 1.000 | - | |
| Attachment: ball (1) vs. cylindrical (2) | 111 | 15 | 4 (3.6%) | 0 (0%) | 1.000 | - |
Frequency (%) of post-fractures, for different subgroups; p values (exact Fisher test), odds ratios (OR), and 95% confidence intervals (95% CI)