Table 2.

Number and percentage of roots and canals in the mandibular second premolars for the two genders

	No.	Root		Canal
		n	%	n	%
Male	1	100	100	100	100
	2	0	0	0	0
Female	1	100	100	98	98
	2	0	0	2	2
χ 2		0		2.02
P		1		0.15523914