Evaluation of Root Canal Morphology of Mandibular First and Second Premolars Using Cone Beam Computed Tomography in a Defined Group of Dental Patients in Iran

Table 2

Root shape (curvature) of mandibular first premolars.

Root shape	Women	Men	Total
	count (%)	count (%)
Straight	50 (74.6)	35 (67.3)	85 (71.4)
Distal curve	7 (10.4)	5 (9.6)	12 (10.1)
Distolingual curve	2 (3.0)	5 (9.6)	7 (5.9)
Lingual curve	2 (3.0)	4 (7.7)	6 (5.0)
Mesial curve	4 (6.0)	0 (0.0)	4 (3.4)
Distobuccal curve	1 (1.5)	1 (1.9)	2 (1.7)
Mesiobuccal curve	1 (1.5)	1 (1.9)	2 (1.7)
Buccal curve	0 (0.0)	1 (1.9)	1 (0.8)
Total	67	52	119