Table 7. Modified plaque index (mPI) and modified sulcus bleeding index (mBI).
| Occurrence rate (%) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Score | SCRP | BSRP | |||||||
| Bl | 3 mo | 6 mo | 12 mo | Bl | 3 mo | 6 mo | 12 mo | ||
| mPI | 0 | 100 | 80.6 | 59.4 | 77.4 | 100 | 62.5 | 56.3 | 53.1 |
| 1 | - | 16.1 | 34.4 | 19.4 | - | 31.3 | 40.6 | 46.9 | |
| 2 | - | 3.2 | 6.3 | 3.2 | - | 6.3 | 3.1 | - | |
| 3 | - | - | - | - | - | - | - | - | |
| mBI | 0 | 100 | 87.5 | 93.5 | 71.9 | 100 | 78.1 | 71 | 62.5 |
| 1 | - | 12.5 | 6.5 | 21.9 | - | 15.6 | 12.9 | 25 | |
| 2 | - | - | 3.2 | 6.3 | - | 6.3 | 16.1 | 12.5 | |
| 3 | - | - | - | - | - | - | - | - | |
mPI, modified plaque index; mBI, modified bleeding index; SCRP, screw- and cement-retained prosthesis; BSRP, ball- and spring-retained prosthesis; Bl, baseline; 3 mo, 3 months; 6 mo, 6 months; 12 mo, 12 months.