Table 3.
Dental characteristics of study individuals in the RA and control groups
| Definition | RA group | Control group | Pvalue | ||
|
Periodontitis yes/no (% yes) |
N = 126 | N = 249 | 0.001 | ||
|
61/65 (48%) |
96/153 (38.6%) |
||||
| Mean | SD | Mean | SD | Pvalue | |
| Number of remaining teeth | 22. | 4.6 | 24.5 | 4.3 | 0.001 |
| Number of teeth with endodontic treatment | 3.2 | 3.2 | 3.1 | 2.5 | 0.72 |
| Number of peri-apical lesions | 0.3 | 0.7 | 0.3 | 0.6 | 0.97 |
| Root remnants | 0.2 | 1.0 | 0.5 | 6.2 | 0.59 |
| BOP % (present at ≥20% of sites assessed) | 24.5 | 22.6 | 21.8 | 16.8 | 0.24 |
| Plaque score % (present at ≥20% of sites assessed) | 31.5 | 23.9 | 32.4 | 21.9 | 0.54 |
| Number of sites with a PPD ≥ 5 mm | 3.3 | 6.2 | 2.7 | 5.4 | 0.36 |
| Bone level ≥ 5 mm at ≥30% sites examined radiographically (% sites) | 18.7 | 23.5 | 13.5 | 7.6 | 0.03 |
PPD probing pocket depth, BOP bleeding on probing