An apparatus for filling a root canal. The apparatus is connected to a filling material melting unit and transfers vibration generated from the filling material melting unit or heat to a first filler or a second filler for filling a root canal. The apparatus includes: a connecting part connected with the filling material melting unit; a contact part being in contact with and pressing the first filler or the second filler to make the root canal be filled with the first filler; and a transferring part that mediates the connecting part and the contact part to transfer heat or vibration provided from the filling material melting unit to the contact part through the connecting part. The contact part includes: a first contact part having a first taper ratio and a second contact part having a second taper ratio that is equal to or larger than the first taper ratio.

A root canal dental instrument is disclosed. The dental instrument includes a handle configured to be coupled to a dental hand piece, and a spiral spindle coupled to the handle. The spiral spindle includes a shaft, which includes a rounded tip, and a continuous spiral protrusion abutting the shaft and extending along a length of the shaft, the continuous spiral protrusion ending on the shaft prior to the rounded tip.

A root canal dental instrument is disclosed. The dental instrument includes a handle configured to be coupled to a dental hand piece, and a spiral spindle coupled to the handle. The spiral spindle includes a shaft, which includes a rounded tip, and a continuous spiral protrusion abutting the shaft and extending along a length of the shaft, the continuous spiral protrusion ending on the shaft prior to the rounded tip.

An endodontic obturation point for obturating a dental root canal comprising a core material, an outer material and a coupling element for transmitting ultrasonic waves to the obturation point. The core material comprises an ultrasonic non-deformable material and the outer material comprises an ultrasonic deformable material.

An endodontic obturation point for obturating a dental root canal comprising a core material, an outer material and a coupling element for transmitting ultrasonic waves to the obturation point. The core material comprises an ultrasonic non-deformable material and the outer material comprises an ultrasonic deformable material.

A crown and root dental restoration includes a prosthesis having at least one through canal having one end opening into at least one root canal and opening into an outer face of the restoration, the through canal forming with the root canal a cavity extending along a first direction; reinforcement pins arranged in the root canal and the through canal, at least one reinforcement pin connecting the through canal with the root canal, the reinforcement pins having a length smaller than a total height of the through canal and a dental root; and a glue filling the root canal and the through canal, the glue contacting sidewalls of the through canal, sidewalls of the root canal, and sidewalls of each reinforcement pin.

A crown and root dental restoration includes a prosthesis having at least one through canal having one end opening into at least one root canal and opening into an outer face of the restoration, the through canal forming with the root canal a cavity extending along a first direction; reinforcement pins arranged in the root canal and the through canal, at least one reinforcement pin connecting the through canal with the root canal, the reinforcement pins having a length smaller than a total height of the through canal and a dental root; and a glue filling the root canal and the through canal, the glue contacting sidewalls of the through canal, sidewalls of the root canal, and sidewalls of each reinforcement pin.

A reinforcement structure for a crown and root tooth restoration includes: a plurality of reinforcement pins having diameters ranging from 0.1 mm to 0.5 mm, an etching canal facilitating access to an infected apex, in the crown and root restoration, a joining element configured to group the plurality of reinforcement pins together so as to form a bundle of pins, the joining element partially covering the length of the reinforcement pins.

A reinforcement structure for a crown and root tooth restoration includes: a plurality of reinforcement pins having diameters ranging from 0.1 mm to 0.5 mm, an etching canal facilitating access to an infected apex, in the crown and root restoration, a joining element configured to group the plurality of reinforcement pins together so as to form a bundle of pins, the joining element partially covering the length of the reinforcement pins.

Device for injecting a filling material in the fluid phase into a canal space, the device including an adaptor nozzle connected to an auto-mixer, and an injection tip fitted at the upper end of the auto-mixer. At a distal end the injection tip has an outside diameter of 1.5 mm or less over a length of 8 mm or greater. The injection tip is made of memory shape material for bending to a desired orientation. The injection tip is molded to the upper end of the auto-mixer, and on an exterior surface of the injector tip are either circular ribs defining a groove, the upper end of the auto-mixer being molded into the groove so the injection tip is locked in position in the upper end while retaining a degree of freedom to rotate about its axis of symmetry, or one or more mutually parallel circular ribs, and the upper end of the auto-mixer is molded onto the circular rib so the injection tip is blocked in position in the upper end while retaining a degree of freedom to rotate about its axis of symmetry.