Abstract: The present invention relates to apparatuses and methods of endodontic treatment. The endodontic treatment system includes an endodontic device for use in endodontic procedures. The endodontic device is coupled to a fluid delivery system and includes an end effector, a first cannula (70), and a second cannula (72). The first cannula (70) and the second cannula (72) are movable relative to one another to an extended position in which the second cannula (72) extends from the first cannula (70). A method for endodontic treatment of a root canal of a tooth includes moving a first cannula (70) and the second cannula (72) relative to one another from a first position to a second position in which the second cannula (72) extends from the first cannula (70) into the root canal and evacuating the irrigant from the root canal with the second cannula (72).

Abstract: An endodontic instrument includes an elongated shaft having a tip and a portion capable of being inserted into the root canal of a tooth. The shaft further includes a plurality of depth markers which are perceivable in a radiograph for indicating the depth of the tip within the root canal. The markers may comprise bumps having a diameter greater than the diameter of the elongated shaft by an amount sufficient to distinguish the markers from the shaft on the radiograph. Alternately, or additionally, the markers may have a radiopacity different from the radiopacity of the shaft by an amount sufficient to distinguish the markers from the shaft on the radiograph. The shaft may be selectively coated with paints, dyes, and/or inks having radiopaque properties. The markers may take the form of circumferential rings or other indicia such as numerals, letters and/or geometrical shapes.