Table 2.

 C-shaped mandibular second premolars according to Fan et al. classification, and canals bifurcation

C-shape classification			Canals bifurcation
	Total (%)	Cervical third	Middle third	Apical Third	Without bifurcation
Total	22 (100%)	3 (13.63%)	13 (59.09%)	1 (4.54%)	5 (22.72%)
C1	3 (13.63)	0	3 (13.63%)	0	0
C2	4 (18.18)	1 (4.54%)	3 (13.63%)	0	0
C3	3 (13.63)	1 (4.54%)	2 (9.09%)	0	0
C4a	6 (27.27)	0	2 (9.09%)	1 (4.54%)	3 (13.63%)
C4b	2 (9.09)	0	0	0	2 (9.09%)
Could not be classified	4 (18.18)	1 (4.54%)	3 (13.63%)	0	0