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

SD: standard deviation.