How Many Canals Are in a Lower Second Molar

Mandibular second molars usually have two roots with three root canals, two in the mesial root and one in the distal root; however, these teeth can present severe anatomical variations, such as the presence of three canals in the mesial root, two canals in the distal root, or supernumerary roots [2].

How many canals are in lower molars?

Normally mandibular first and second molars have two roots, one is mesial and the other is distal, and at least three main canals.

How many canals does a lower first molar have?

The mandibular first molar usually has two roots, a mesial and a distal. The distal is smaller and usually rounder than the mesial. There is a variation with a supernumerary distolingual root; the reported frequency ranges from 6 to 44%. The two-rooted molar usually has a canal configuration of three canals (Fig.