Table 5.
Radiographic examination of BV (volumetric changes in graft bone over time)
| BV | Mean | Reduction rate |
|---|---|---|
| Immediately after surgery (n = 30) | 1206 ± 437 (477 to 2292) | 100 % |
| 6 months after surgery (n = 30) | 912 ± 356 (428 to 1760) | 75.6 % |
| 2.5 years after surgery (n = 30) | 662 ± 294 (204 to 1568) | 54.9 % |
BV bone volume, n = 30: the number of maxillary sinuses
Reduction rate: provided that volume was 100 % immediately after surgery
Analysis using generalized estimating equations (GEE) with patient clusters