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Surface area (SA) calculations for each anchor shape
| Anchor shape | A | B | C | D | E | F | G | H | I | J | R 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Total SA (mm2) | 48.0 | 55.4 | 41.3 | 42.3 | 53.3 | 63.3 | 85.8 | 96.3 | 54.0 | 49.4 | 0.19 |
| SA without top (mm2) | 380 | 45.4 | 33.7 | 34.9 | 44.6 | 54.6 | 71.8 | 82.3 | 45.3 | 40.7 | 0.21 |
| Interface SA (mm2) | 10.0 | 18.0 | 7.6 | 7.6 | 8.8 | 19.3 | 14.0 | 25.3 | 20.8 | 19.3 | 0.01 |
