Table 1.
Dimensions of L-PRF membranes at baseline and after 72 h of incubation as well as the difference between both observations (▲), and bacteria-free area (mm2) for nine participants (mean and standard deviation). *p < 0.05.
| L-PRF membrane | P. gingivalis | P.intermedia | F. nucleatum | A. actinomycetemcomitans | |||||
|---|---|---|---|---|---|---|---|---|---|
| mean | sd | mean | sd | mean | sd | mean | sd | ||
| Length and Width (mm) | |||||||||
| Baseline | length | 39.4 | 3.3 | 35.9 | 3.5 | 35.8 | 4.7 | 35.1 | 7.0 |
| width | 10.5 | 1.2 | 11.3 | 1.0 | 11.1 | 2.3 | 10.4 | 1.3 | |
| 72 h | length | 39.0 | 3.3 | 34.2 | 3.2 | 35.1 | 4.6 | 34.3 | 6.4 |
| width | 8.8 | 4.1 | 9.7 | 3.8 | 9.5 | 3.9 | 8.9 | 3.8 | |
| ▲ | length mm | 0.4 | 0.6 | 1.6 | 0.2 | 0.7 | 0.7 | 0.8 | 0.8 |
| width mm | 0.6 | 0.5 | 0.4 | 0.5 | 0.3 | 0.2 | 0.4 | 0.3 | |
| length % | 1.1 | 1.6 | 4.4 | 1.5 | 2.1 | 2.0 | 2.1 | 1.7 | |
| width % | 6.7 | 4.9 | 3.7 | 2.9 | 5.5 | 7.6 | 4.1 | 3.5 | |
| Surface (mm2) | |||||||||
| Baseline | membrane surface | 37.0 | 4.6 | 33.3 | 6.0 | 35.4 | 5.1 | 32.2 | 7.9 |
| 72 h | membrane surface | 34.4 | 4.4 | 31.1 | 11.1 | 33.6 | 5.0 | 30.5 | 7.0 |
| ▲ | shrinkage mm2 | 2.7 | 1.1 | 2.1 | 1.1 | 1.9 | 0.9 | 1.7 | 2.0 |
| shrinkage % | 7.2 | 2.9 | 5.5 | 3.9 | 5.3 | 2.5 | 4.8 | 5.1 | |
| Area of bacterial growth inhibition (mm 2 ) | |||||||||
| 72 h | full area | 11.8* | 5.0 | 2.7 | 5.2 | 2.6 | 3.0 | 0.6 | 1.8 |
| area without shrinkage | 9.1* | 3.2 | 0.5 | 1.3 | 0.5 | 0.9 | 0.2 | 0.7 | |