Morphological Study of Palatal Rugae in a Sudanese Population

Table 6

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

Variable	Males			Females
	Right mean ± SD	Left mean ± SD	value^*	Right mean ± SD	Left mean ± SD	value^*
Forward	3.16 ± 1.89	4.62 ± 1.91	0.000	2.52 ± 1.87	3.86 ± 1.62	0.000
Backward	2.86 ± 1.63	1.76 ± 1.42	0.000	3.20 ± 1.91	1.74 ± 1.28	0.000
Perpendicular	0.60 ± 0.86	0.30 ± 0.65	0.022	0.56 ± 0.79	0.54 ± 0.76	0.885

Wilcoxon signed-rank test.