Table 6.
Characteristics of biofilm samples from implants with fixed and removable dentures
| Types of prosthesis | Fixed dentures (FD) | Removable dentures (RD) | Test for significant difference |
|---|---|---|---|
| Number of implant | 20 | 11 | – |
| Numbers of individuals | 13 | 3 | – |
| Implant location: quadrants (1, 2, 3, 4) | 9 (45%), 7 (35%), 2 (10%), 2 (10%) | 3 (27%), 1 (9%), 5 (46%), 2 (18%) | n.s., Chi-Square Test |
| Implant location: maxillary | 16/20 (80%) | 4/11 (36%) | p = 0.015, Chi-Square Test |
| Implant location: left | 11/20 (55%) | 8/11 (72%) | n.s., Chi-Square Test |
| Type of replaced tooth (I, C, B, M) | 0 (0%), 3 (15%), 6 (30%), 11 (55%) | 4 (36%), 2 (18%), 4 (36%), 1 (9%) | - |
| Location of replaced toot: front | 3/20 (15%) | 6/11 (55%) | p = 0.020, Chi-Square Test |
| Implants from current smoker | 0/20 (0%) | 9/11 (82%) | p < 0.001, Fisher exact test |
| Implant age (µ ± 95%CI) | 7.2 ± 1.7 | 12.4 ± 1.1 | p < 0.001, Two-Tailed T-Test |
| Pocket depth (µ ± 95%CI) | 6.3 ± 0.9 | 8.4 ± 1.6 | p = 0.016, Two-Tailed T-Test |
| Gingival index (1, 2, 3) | 0 (0%), 11 (58%), 8 (42%) | 1 (9%), 6 (66%), 4 (36%) | - |
| Plaque index (0, 1, 2, 3) | 1 (5%), 7 (37%), 6 (32%), 5 (26%) | 0 (0%), 1 (9%), 1 (9%), 9 (82%) | - |
| Bad oral hygiene | 5/16 (31%) | 11/11 (100%) | p < 0.001, Fisher exact test |
| History of periodontal disease | 20/20 (100%) | 11/11 (100%) | n.s., Fisher exact test |
| Pus | 10/20 (50%) | 6/11 (55%) | n.s., Chi-Square Test |
| Pain | 5/20 (24%) | 1/11 (9%) | n.s., Fisher exact test |
| Periotron (µ ± 95%CI) | 116 ± 22 | 161 ± 21 | n.s., Two-Tailed T-Test |
| Residual teeth | 13/13 (100%) | 1/3 (33%) | p = 0.025, Fisher exact test |
| Patient sex: man | 4/13 (30%) | 1/3 (33%) | n.s., Fisher exact test |
| Patient age (µ ± 95%CI) | 72 ± 3 | 63 ± 5 | n.s., Two-Tailed T-Test |
n.s.—the result is not significant at p < .05