The term endodontics refers to the branch of dentistry that deals with endodontal therapy, ie the space inside the dental element, which contains the dental pulp, consisting of cellular component, vessels and nerves.

Endodontic therapy is used if a carious or traumatic tooth lesion has caused an irreversible alteration of the pulp tissue, up to the necrosis of the same. It is also possible to apply this method if the dental element must be involved in prosthetic rehabilitations which, due to the considerable reduction of the dental tissue itself, would most likely determine irreversible pulp alteration (pulp necrosis due to iatrogenic causes).