表 1.
受试者与种植体的一般情况
Characteristics of subjects and implants
| Parameters | Healthy implants (n=20) | Peri-implantitis (n=29) | F value | χ 2 | P value |
| Data are presented as x±s or n (%). PLI, plaque index; PPD, probing pocket depth; BI, bleeding index; MBL, marginal bone loss. | |||||
| Age/years | 47.6±15.0 | 54.7±12.9 | 0.478 | 0.086 | |
| Gender (male/female) | 8/12 | 17/12 | 0.037 | 0.208 | |
| Position | |||||
| Anterior maxilla | 3 (15.0) | 2 (6.9) | 1.073 | 0.784 | |
| Posterior maxilla | 7 (35.0) | 10 (34.5) | |||
| Anterior mandibula | 1 (5.0) | 1 (3.4) | |||
| Posterior mandibula | 9 (45.0) | 16 (55.2) | |||
| Mean PLI | 0.20±0.34 | 1.57±0.78 | < 0.001 | ||
| Mean PPD/mm | 2.36±0.25 | 6.20±1.64 | 30.324 | < 0.001 | |
| Mean BI | 0.14±0.20 | 2.86±0.72 | 14.158 | < 0.001 | |
| Suppuration | 0 | 13 (44.8) | 12.203 | < 0.001 | |
| Mean MBL/mm | 0 | 3.12±1.79 | 26.634 | < 0.001 | |