Root and canal morphology of mandibular 2d molars in a pattern of Emirati population. According to our findings vast editions of canal configuration is discovered in the mesial root of mandibular 2d molars. In addition, an extraordinarily excessive incidence (17.9%) of C-shaped mandibular molars is discovered in Emirati subpopulation. Moreover, particular sorts of morphological alternate in the root canal gadget of C-shaped molars have been located and described for the first time.