Morphological Study of Palatal Rugae in a Sudanese Population

Table 4

Bilateral differences (left-right) in rugae lengths in both sexes.

Variable	Males			Females
	Right mean ± SD	Left mean ± SD	value^*	Right mean ± SD	Left mean ± SD	value^*
Primary	5.02 ± 1.33	5.08 ± 1.65	0.842	4.76 ± 1.33	4.96 ± 1.34	0.299
Secondary	1.30 ± 1.04	1.28 ± 1.14	0.912	1.12 ± 1.04	0.94 ± 1.19	0.239
Fragmented	0.30 ± 0.46	0.32 ± 0.62	0.782	0.40 ± 0.70	0.24 ± 0.48	0.290

Wilcoxon signed-rank test.