The present invention relates to methods for the restoration of a decayed portion of an anterior tooth or re-restoration of a previously filled anterior tooth, and to dental matrices and composite resin dispensers that may be used in the methods for the restoration of a decayed portion of an anterior tooth.

The present invention relates to methods for the restoration of a decayed portion of an anterior tooth or re-restoration of a previously filled anterior tooth, and to dental matrices and composite resin dispensers that may be used in the methods for the restoration of a decayed portion of an anterior tooth.

The present invention relates to methods for the restoration of a decayed portion of an anterior tooth or re-restoration of a previously filled anterior tooth, and to dental matrices and composite resin dispensers that may be used in the methods for the restoration of a decayed portion of an anterior tooth.

The present invention relates to methods for the restoration of a decayed portion of an anterior tooth or re-restoration of a previously filled anterior tooth, and to dental matrices and composite resin dispensers that may be used in the methods for the restoration of a decayed portion of an anterior tooth.

The present disclosure relates to a method of manufacturing a needle for root canal treatment devices having improved ductility. The method of the present disclosure includes a step of manufacturing a hollow needle body in a desired shape using an alloy or a single metal, a step of filling the hollow of the needle body with a packing member, a step of heat-treating the needle body at a predetermined temperature under an inert gas atmosphere after the needle body is placed in a vacuum chamber, and a step of cooling and hardening the needle body.

The present disclosure relates to a method of manufacturing a needle for root canal treatment devices having improved ductility. The method of the present disclosure includes a step of manufacturing a hollow needle body in a desired shape using an alloy or a single metal, a step of filling the hollow of the needle body with a packing member, a step of heat-treating the needle body at a predetermined temperature under an inert gas atmosphere after the needle body is placed in a vacuum chamber, and a step of cooling and hardening the needle body.

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.

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.

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 modular cord-less pen-style dental instrument comprising: (a) an elongated body for gripping and holding the instrument, which has a connector portion at the distal end thereof; (b) a wand portion having a proximal end adapted to be releasably connected to the connector portion at the distal end of the elongated body; wherein the dental instrument further comprises a heat flow barrier between the elongated body and the wand portion.