| Cutting edge concavity* (mm2) | Mesal tooth concavity* (mm2) | Thickness/curvature* (a/b) | |||
| Mean ± SD | Range | Mean ± SD | Range | Mean ± SD | Range |
Male | 0.55 ± 0.06 | 0.30 - 1.00 | 0.086 ± 0.008 | 0.048 - 0.157 | 1.7 ± 0.1 | 1.3 - 2.4 |
Female | 0.13 ± 0.02 | 0.07 - 0.26 | 0.005 ± 0.001 | 0 .003 - 0.008 | 7.2 ± 1.0 | 3.9 - 12.9 |