Endodontic Management of Mandibular First Molars with Three Distal Root Canals-A Report of Two Cases

Rarely, there is an extra canal called middle mesial (MM) in the mesial root with an incidence ranged from 0% to 46% [4-8]. Moreover, middle distal (MD) canal may present in the distal root with an incidence up to 8% [9]. Additionally, cases of mandibular molars with seven and eight root canals have been reported in the literature [10,11]. Other anatomical variations include radix entomolaris, radix paramolaris, C-shaped canal, and taurodontism [12-15].