Table 1 Descriptive statistics of membrane thickness and perforation rate
From: Crestal endoscopic approach for evaluating sinus membrane elevation technique
Group | Membrane thickness | Mean ± SD (mm) | Median (range) | Percentage (%) (from total) | Perforation rate (%) (from total) |
|---|---|---|---|---|---|
A (n = 4) | < 2 mm | 1.30 ± 0.53 | 1.25 (0.8–1.9) | 33.33 | 16.67 |
B (n = 8) | > 2 mm | 5.87 ± 2.70 | 5.50 (2.2–10.4) | 66.66 | 0 |