Table 1.
Mean ± SD of clinical characteristics of the subjects in both groups.
| Clinical variables | Healthy | Peri-implantitis | p |
|---|---|---|---|
| n subjects | 21 | 21 | |
| Age (years)ns | 49.0 ± 12.2 | 52.6 ± 12.1 | 0.3778 |
| Gender (m : f)ns | 8 : 13 | 3 : 18 | |
| Probing depth (mm)∗ | 3.27 ± 0.99 | 5.06 ± 2.28 | 0.0050 ∗ |
| Clinical attachment level (mm)∗ | 0.15 ± 0.64 | 5.08 ± 2.03 | <0.0001 ∗ |
| % sites with: | |||
| Plaquens | 43.1 ± 43.7 | 31.7 ± 40.1 | 0.5058 |
| Gingival bleeding∗ | 26.5 ± 35.3 | 53.9 ± 36.1 | 0.0227 ∗ |
| Bleeding on probing∗ | 50.0 ± 36.4 | 80.8 ± 30.8 | 0.0089 ∗ |
| Suppuration∗ | 0 ± 0 | 10.7 ± 0.1 | <0.01 ∗ |
Mann–Whitney U and chi-square test. ns: nonsignificant. ∗Significant.