Middle Mesial Canal in Mandibular Molar: Two Case Report

From the past several years, there have been numerous studies that describe the morphology of teeth, including mandibular first molars. This tooth presents a high rate of intercanals and anastomosis, mainly in the apical 5 mm, which presents a clinical challenge in terms of cleaning and disinfection. A missed canal can lead to failure of endodontic therapy. Therefore every effort must be made to locate additional canals if any. This case report shows a variation in conventional anatomy in mandibular first molars.