Abstract: A device for disinfecting and/or sterilization of a dental cavity includes: an electrode pair that extends into the cavity to provide current along a portion of the cavity; and a controller that sends controlled electrical energy to the cavity via current flowing between the electrodes when located in the cavity, thereby to provide electrical energy for disinfection and/or sterilization.

Abstract: A device for disinfecting and/or sterilization of a dental cavity includes: an electrode pair that extends into the cavity to provide current along a portion of the cavity; and a controller that sends controlled electrical energy to the cavity via current flowing between the electrodes when located in the cavity, thereby to provide electrical energy for disinfection and/or sterilization.

Abstract: A device for disinfecting and/or sterilization of a dental cavity includes: an electrode pair that extends into the cavity to provide current along a portion of the cavity; and a controller that sends controlled electrical energy to the cavity via current flowing between the electrodes when located in the cavity, thereby to provide electrical energy for disinfection and/or sterilization.

Abstract: An endodontic file (10) has a handle (11) and a spiral cord (15) of helically wound metallic wire wound in a predetermined direction around a central metallic cord (13) formed between opposite ends of the central cord so as to form an integrated structure (18) of generally conical cross-section including a narrow tip end (17) and an opposite wider upper end (16) supported at the upper end by the handle. A flexible conical reinforcement (26, 31) supported by the handle covers an outermost layer of an upper portion of the spiral cord remote from the tip end, its lower end being of sufficiently low diameter to enter the root canal and dimensioned at its upper end to limit bending of the upper portion. An outer surface (20) of the spiral cord is configured for removing material from inside the root canal when the endodontic file is rotated in the predetermined direction.

Abstract: An endodontic file (10) has a handle (11) and a spiral cord (15) of helically wound metallic wire wound in a predetermined direction around a central metallic cord (13) formed between opposite ends of the central cord so as to form an integrated structure (18) of generally conical cross-section including a narrow tip end (17) and an opposite wider upper end (16) supported at the upper end by the handle. A flexible conical reinforcement (26, 31) supported by the handle covers an outermost layer of an upper portion of the spiral cord remote from the tip end, its lower end being of sufficiently low diameter to enter the root canal and dimensioned at its upper end to limit bending of the upper portion. An outer surface (20) of the spiral cord is configured for removing material from inside the root canal when the endodontic file is rotated in the predetermined direction.

Abstract: An endodontic file for a motorized rotary handpiece includes a coupler element for coupling to the handpiece, a central longitudinal flexible core including a central flexible cable supported by the coupler element, and a helical wire surrounding the core and extending toward a tip of the core opposite the handle end. The flexible core includes a first plurality of inner strands twisted together in a first direction and surrounded by a second plurality of outer strands twisted in an opposite direction. The tip of the core is chamfered and unbonded and protrudes beyond the helical wire at the tip whereby in use reversing a direction of rotation of the endodontic file after the tip of the core reaches the apex of the root canal, unwinds the outer strands, which operate as a brush during removal of the endodontic file from the root canal.

Abstract: An endodontic file for a motorized rotary handpiece includes a coupler element for coupling to the handpiece, a central longitudinal flexible core including a central flexible cable supported by the coupler element, and a helical wire surrounding the core and extending toward a tip of the core opposite the handle end. The flexible core includes a first plurality of inner strands twisted together in a first direction and surrounded by a second plurality of outer strands twisted in an opposite direction. The tip of the core is chamfered and unbonded and protrudes beyond the helical wire at the tip whereby in use reversing a direction of rotation of the endodontic file after the tip of the core reaches the apex of the root canal, unwinds the outer strands, which operate as a brush during removal of the endodontic file from the root canal.

Abstract: An endodontic file (10) has at least a central longitudinal cord (12), a helically wound wire (14) at least partially surrounding the cord and an elastomeric grip (16) partially covering the helically wound wire near a first end thereof and having an outer diameter that is slightly wider than an internal diameter of a barrel of a dental instrument whereby on insertion into the barrel it is supported therein only by friction.

Abstract: A root canal length measurement device configured for detachable support on a neck of a dental handpiece and having a generally cylindrical electrical contact element that, in use, is resiliently biased by a spring toward an endodontic file rotatably mounted in the handpiece so that a flat surface of the contact element maintains a steady electrical connection with a shank portion of the endodontic file proximate its point of attachment to the handpiece.

Abstract: An apex locator for measuring a root canal apex, comprising: a first connection adapted for removably electrically connecting the apex locator to a file or reamer held by a motorized handpiece; and a second connection connected to a lip hook.

Abstract: An endodontic file has at least a central longitudinal cord, a helically wound wire at least partially surrounding the cord and an elastomeric grip partially covering the helically wound wire near a first end thereof. The elastomeric grip has an outer diameter that is slightly wider than an internal diameter of a barrel of a dental instrument whereby on insertion into the barrel it is supported therein only by friction.

Abstract: A device for disinfecting and/or sterilization of a dental cavity comprising: an electrode pair adapted to extend into said cavity to provide current along at least a portion of the cavity; and a controller configured for sending controlled electrical energy to said cavity via current flowing between the electrodes when located in said cavity, thereby to provide electrical energy for said disinfection and/or sterilization.

Abstract: A system for determining and storing a dental root canal depth measurement comprising: at least one electronic apex locator configured to locate the apex of a dental root canal; a dental instrument configured to be inserted into the dental root canal, up to the apex thereof; and a remotely located data storage unit configured to store data concerning the root canal apex. Data concerning the apex of the root canal may be transmitted from the apex locator to the data storage unit via Bluetooth transmission and may be exhibited on a display, along with the depth measurement of the root canal and a digital x-ray showing the location of the dental instrument in the root canal.

Abstract: A system for determining and storing a dental root canal depth measurement comprising: an electronic apex locator configured to locate the apex of a dental root canal; a dental instrument configured to be inserted into the dental root canal, up to the apex thereof; and a remotely located computer configured to store data concerning the root canal apex. Data concerning the apex of the root canal is transmitted from the apex locator to the computer via Bluetooth transmission and may be exhibited on a display, along with the depth measurement of the root canal.