Morphological Study of Palatal Rugae in a Sudanese Population

Table 5

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

Variable	Males			Females
	Right mean ± SD	Left mean ± SD	value^*	Right mean ± SD	Left mean ± SD	value^*
Straight	1.62 ± 0.99	1.58 ± 1.30	0.684	1.38 ± 1.14	1.42 ± 1.31	0.944
Curve	1.94 ± 1.30	1.76 ± 1.35	0.396	1.72 ± 1.20	1.44 ± 1.05	0.258
Wavy	1.80 ± 1.20	1.88 ± 0.98	0.661	1.96 ± 1.14	1.92 ± 1.09	0.923
Circular	0.16 ± 0.37	0.16 ± 0.37	1.000	0.06 ± 0.24	0.24 ± 0.48	0.013
Branch	0.40 ± 0.67	0.40 ± 0.64	0.896	0.40 ± 0.57	0.30 ± 0.46	0.336
Crosslink	0.04 ± 0.20	0.06 ± 0.24	0.655	0.10 ± 0.30	0.08 ± 0.27	0.739
Angular	0.26 ± 0.53	0.34 ± 0.59	0.446	0.26 ± 0.63	0.28 ± 0.61	0.883
Nonspecific	0.14 ± 0.35	0.14 ± 0.41	1.000	0.12 ± 0.33	0.08 ± 0.27	0.527
Converging	0.12 ± 0.33	0.30 ± 0.51	0.039	0.16 ± 0.37	0.16 ± 0.42	1.000
Diverging	0.14 ± 0.35	0.06 ± 0.24	0.157	0.12 ± 0.48	0.22 ± 0.42	0.134

Wilcoxon signed-rank test.