Research Article
Morphological Study of Palatal Rugae in a Sudanese Population
Table 1
Descriptive statistics for palatal rugae lengths in both sexes.
| Variable | Males | Females | Mann-Whitney test | Number | % | Mean | SD | Number | % | Mean | SD | | value |
| Primary | 505 | 75.94 | 10.10 | 2.36 | 486 | 78.26 | 9.72 | 2.09 | 1127.00 | 0.392 | Secondary | 129 | 19.40 | 2.58 | 1.68 | 103 | 16.59 | 2.06 | 1.46 | 1035.50 | 0.131 | Fragmented | 31 | 4.66 | 0.62 | 0.83 | 32 | 5.15 | 0.64 | 0.75 | 1193.00 | 0.663 |
| Total | 665 | 100 | 13.30 | 2.47 | 621 | 100 | 12.42 | 2.85 | 975.00 | 0.056 |
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SD: standard deviation.
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