P value | Time interval after surgery (month) | Average changes in height of ridge height with autogenic grafting |
P < 0.05 | Immediately | 17.33 ± 0.58 |
P < 0.05 | 3 | 24.33 ± 0.58 |
P < 0.05 | 6 | 22.83 ± 1.26 |