Table 1.
Comparison of three groups with radiographic defect depth by one-way ANOVA
| Baseline | 3rd month | 6th month | Changes from baseline to | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 3rd month | 6th month | |||||||||
| Mean | SD | Mean | SD | Mean | SD | Mean | SD | Mean | SD | |
| OFD | 12.74 | 1.94 | 10.92 | 1.78 | 10.16 | 1.88 | 1.82 | 1.68 | 2.58 | 1.47 |
| DFDBA | 14.54 | 3.24 | 10.40 | 2.47 | 9.14 | 2.12 | 4.13 | 2.04 | 5.39 | 2.07 |
| DFDBA + PRF | 13.71 | 1.55 | 9.65 | 1.53 | 8.37 | 1.40 | 4.06 | 1.92 | 5.35 | 2.05 |
| Percentage of change in OFD | 14.26%# | P=0.0021* | 20.24%# | P=0.00001* | ||||||
| Percentage of change in DFDBA | 28.45%# | P=0.00001* | 37.11%# | P=0.00001* | ||||||
| Percentage of change in DDBA + PRF | 29.64%# | P=0.00001* | 38.99%# | P=0.00001* | ||||||
| F | 1.8951 | 1.3736 | 3.8134 | 6.3631 | 9.5123 | |||||
| P | 0.1650 | 0.2661 | 0.0500* | 0.0043* | 0.0005* | |||||
| Pair wise comparisons by Tukey’s multiple post hoc procedures | ||||||||||
| OFD versus DFDBA (P) | 0.1411 | 0.7799 | 0.3409 | 0.0094* | 0.0016* | |||||
| OFD versus DFDBA + PRF (P) | 0.5478 | 0.2390 | 0.0438* | 0.0120* | 0.0019* | |||||
| DFDBA versus DFDBA + PRF (P) | 0.6504 | 0.5978 | 0.5311 | 0.9952 | 0.9979 | |||||
*P<0.05, #Applied paired t-test. OFD – Open flap debridement; DFDBA – Demineralized freeze-dried bone allograft; PRF – Platelet-rich fibrin; SD – Standard deviation