Participants | ||
 Number of participants | 35 |  |
 Gender (male/female) | 10:25 |  |
 Age (years) | 68.7 ± 6.5 |  |
Examining sites | Healthy | Diseased |
 Number of PICF samples | 34 | 40 |
 PD (mm) | 2.32 ± 0.58 | 4.70 ± 1.36†|
 Gingival index | 0.0 ± 0.0 | 1.5 ± 0.5†|
 BOP-positive rate (%) | 0.0 ± 0.0 | 40.0 ± 15.2* |
 Bone loss rate (%) | 19.7 ± 9.8 | 42.7 ± 18.0†|