What does Endodontics mean? Endodontics is derived from the Greek: Endo comes from roots which came from “inside”. Dontics comes from “tooth”. An endodontist can help to save your teeth in various ways. Mainly through the practice of root canal which will eliminate diseased nerves that generate pain through your mouth. Besides root canal there are various treatments which an endodontist is skilled in that can save otherwise hopeless teeth.