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Distribution of groove pattern among males and females
| Type of groove pattern | Males | Females | ||||||
|---|---|---|---|---|---|---|---|---|
| UM1 | UM2 | LM1 | LM2 | UM1 | UM2 | LM1 | LM2 | |
| “Y” pattern | 0 | 0 | 16 | 1 | 0 | 0 | 14 | 1 |
| “+” pattern | 0 | 0 | 4 | 19 | 0 | 0 | 6 | 19 |
| “X” pattern | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| “h” pattern | 8 | 10 | 0 | 0 | 7 | 8 | 0 | 0 |
| Branched “H” pattern | 11 | 6 | 0 | 0 | 13 | 8 | 0 | 0 |
| “U” pattern | 0 | 3 | 0 | 0 | 0 | 2 | 0 | 0 |
| Abstract | 1 | 1 | 0 | 0 | 0 | 2 | 0 | 0 |
UM: Upper molar, LM: Lower molar
