Table 3.
Mean and standard deviation for the absolute and relative total crown base area and cusp areas of M1s. The range of variation is included for the SH sample
| Absolute (mm2) | Relative (%) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Sample | TCBA (mm2) | Protocone | Paracone | Metacone | Hypocone | Protocone | Paracone | Metacone | Hypocone |
| SH (12) | 107.7 ± 11.5 (84.1–129.8) | 37.1 ± 4.3 (30.9–46.0) | 26.9 ± 3.1 (20.8–32.0) | 22.4 ± 3.2 (15.8–28.9) | 21.1 ± 2.0 (16.7–24.9) | 34.5 ± 1.6 (32.0–36.7) | 25.0 ± 1.0 (23.6–26.5) | 20.8 ± 1.1 (18.8–22.2) | 19.7 ± 1.2 (17.7–21.3) |
| NEA (21) | 112.3 ± 16.6 | 33.7 ± 6.1 | 28.8 ± 4.2 | 22.9 ± 3.9 | 26.8 ± 5.1 | 29.9 ± 2.4 | 25.8 ± 2.1 | 20.6 ± 1.8 | 23.7 ± 2.1 |
| HEI (4) | 115.5 ± 17 | 34.8 ± 6.8 | 28.3 ± 4.8 | 24.2 ± 4.8 | 28.2 ± 3 | 31.1 ± 3.7 | 24.8 ± 0.9 | 20.1 ± 2.6 | 24 ± 1.6 |
| ANT (5) | 123.8 ± 9 | 37.5 ± 2.6 | 29.4 ± 1.4 | 26.3 ± 2.4 | 30.6 ± 3.1 | 30.3 ± 0.7 | 23.8 ± 0.7 | 21.2 ± 0.7 | 24.7 ± 0.8 |
| ERE (5) | 115.5 ± 6.8 | 34.5 ± 3 | 28.7 ± 2.7 | 26.5 ± 3.2 | 25.8 ± 1.6 | 29.9 ± 2.2 | 24.9 ± 2.3 | 22.9 ± 1.7 | 22.3 ± 0.4 |
| MP HSAP (7) | 111.3 ± 12.7 | 34.7 ± 2 | 27.5 ± 2.4 | 23.7 ± 3.7 | 25.8 ± 7.8 | 31.3 ± 2.3 | 24.8 ± 1.6 | 21.3 ± 2.5 | 22.8 ± 5 |
| UP HSAP (15) | 99.6 ± 10.2 | 31.7 ± 3.6 | 25.2 ± 2.4 | 22.6 ± 3.3 | 20.3 ± 3.7 | 31.8 ± 1.5 | 25.7 ± 2.3 | 22.4 ± 1.7 | 20.1 ± 3 |
| HSAP (59) | 96.6 ± 14.0 | 29.9 ± 4.8 | 24.8 ± 3.7 | 22.1 ± 3.9 | 19.7 ± 3.8 | 31 ± 2 | 25.8 ± 2.1 | 22.9 ± 1.8 | 20.4 ± 2.5 |
| EaHOMO (18) | 134.9 ± 15.3 | 39.5 ± 5.3 | 31.1 ± 3.5 | 33.5 ± 4.6 | 30.8 ± 5.4 | 29.3 ± 2.1 | 23.2 ± 2.2 | 24.8 ± 2 | 22.8 ± 2.4 |
| FLHOMO (55) | 109 ± 14.5 | 33.3 ± 4.7 | 27.5 ± 3.6 | 23.5 ± 3.8 | 24.8 ± 5.5 | 30.6 ± 2.2 | 25.5 ± 2.1 | 21.5 ± 2 | 22.5 ± 3.1 |
| LHOMO (114) | 102.2 ± 15.4 | 31.4 ± 5 | 26 ± 3.8 | 22.7 ± 3.9 | 22 ± 5.3 | 30.8 ± 2.1 | 25.6 ± 2.1 | 22.2 ± 2 | 21.4 ± 3 |