Endodontic Treatment: Case #10 – 4 canalled lower first molar with 2 distals and 2 mesial canals with a common apex of the mesial root system. By Dr. John Jaber | April 2, 2024 MB and ML join at the apex with inter connections of the two root systems (anastamosis). pre-op medicated with CaOH final final x-ray mesial angled showing interesting anatomy Posted in Endodontics