Variations in the Root Form and Root Canal Morphology of Permanent Mandibular First Molars in a Sri Lankan Population

Table 2

Prevalence of lateral canals (percentage from the total number of roots).

	Cervical 1/3	Middle 1/3	Apical 1/3
Mesial root	0	1 (0.26%)	157 (40.78%)
Distal root	0	0	148 (38.34%)