Research Article
Morphological Study of Palatal Rugae in a Sudanese Population
Table 3
Descriptive statistics for palatal rugae directions in both sexes.
| Direction | Males | Females | Mann-Whitney test | Number | % | Mean | SD | Number | % | Mean | SD | | value |
| Forward | 389 | 58.50 | 7.78 | 3.16 | 319 | 51.37 | 6.38 | 2.59 | 949.500 | 0.037 | Backward | 231 | 34.74 | 4.62 | 2.57 | 247 | 39.77 | 4.94 | 2.65 | 1158.500 | 0.525 | Perpendicular | 45 | 6.77 | 0.90 | 1.18 | 55 | 8.86 | 1.10 | 1.25 | 1109.000 | 0.301 |
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