Endo Voices expands our horizons in this series as we tap into the international endo community and discuss non-surgical retreatment and endodontic surgery with Dr. Paula Villa from Colombia and Dr. Luis Ferrandez from England.Episodes of Endo Voices may include opinion, speculation and other statements not verifiable in the scientific method and do not necessarily reflect the views of AAE or the sponsor(s). Listeners should use their best judgment in evaluating the merits of any content. To learn more about the American Association of Endodontists, visit aae.org.