Middle Mesial Canal of the Mandibular First Molar

A Case Report and Literature Review

Baugh, Dean DDS
Wallace, James DDS, MDS, MSD, MS

Drs. Baugh and Wallace are affiliated with the University of Pittsburgh School of Dental Medicine, Pittsburgh, Pennsylvania.

Address reprint requests to Dean Baugh, DDS, Salk Hall, Dept of Endodontics 3501 Terrace St. Pittsburgh, PA 15261.

Journal of Endodontics 30(3):p 185-186, March 2004.

With the advent of magnification, either by loupes or microscope, the astute clinician must be aware of recent literature that states that the mandibular first molar has a 1–15% chance of a fifth canal. This is a case report accompanied by a review of the literature that shows the unusual anatomy of the mandibular first molar.