P value | Time interval after surgery (month) | Average changes in height of ridge height with autogenic graft (mm) |
P < 0.05 | Immediately | 18 ± 0.87 |
P < 0.05 | 3 | 24.83 ± 1.26 |
P < 0.05 | 6 | 24.67 ± 1.67 |