Table 2. Paired comparisons of parameters measured for the test (PADM) and control (CTG) sides.
| Follow-up | Clinical parameters | Difference tested | Mean difference±SD | Wilcoxon signed rank test, P value |
|---|---|---|---|---|
| Baseline | RH reduction (mm) | Test-control | −0.14±0.7 | 0.277 |
| CAL (mm) | Test-control | −0.19±0.98 | 0.233 | |
| KT (mm) | Test-control | −0.07±0.79 | 0.472 | |
| PD (mm) | Test-control | −0.05±0.51 | 0.534 | |
| RW (mm) | Test-control | 0.15±0.78 | 0.283 | |
| GT (mm) | Test-control | −0.02±0.16 | 0.228 | |
| 12 months of follow-up | RH (mm) | Test-control | 0.35±0.74 | 0.014a) |
| CAL (mm) | Test-control | 0.39±0.87 | 0.007a) | |
| KT (mm) | Test-control | −0.41±0.94 | 0.190 | |
| PD (mm) | Test-control | −0.01±0.43 | 0.875 | |
| RW (mm) | Test-control | 0.26±0.67 | 0.048a) | |
| GT (mm) | Test-control | −0.68±0.29 | <0.001a) | |
| MRC (%) | Test-control | −12.34±28.2 | 0.005a) |
Values are presented as mean±SD.
PADM: porcine-derived acellular dermal matrix, CTG: connective tissue graft, SD: standard deviation, RH: recession height, CAL: Clinical attachment level, KT: keratinized tissue, PD: probing depth, RW: recession width, GT: gingival thickness, MRC: mean root coverage.
a)Statistically significant difference (P<0.05).