Bioceramics are the new materials used to close endodontic channels.
Unlike other cements, they are biocompatible (cells grow very well on their surface), bactericidal (they release calcium hydroxide which has a pH of 12, creating an environment hostile to bacteria), and are very watertight (their expansion prevents gap formation within the walls of the channel).
They are not resorbable and therefore have a dimensional stability over time (there will be no gap created over time), and are bioactive (they promote bone healing around the roots).
They also allow, in many cases, the preservation of dental vitality because the pulp (the nerve) tolerates them particularly well and can heal when in contact with them (the pulp being an extremely fragile tissue, they are a revolutionary solution).
