Other

Billet, Gilles

Maneuf, Bernard

Clunet-Coste, Bruno

Collombin, Andre

Richert, Raphaël

Monette, Raymond

Andre Collombin

Bernard Maneuf

Bruno Clunet-Coste

André Collombin

Gilles Billet

Yannick Le Guay

Bruno Clunet Coste

Andr&eacute; Collombin

Leif Siguard Nordvall

Raphael Richert

Raymond Monette

Bruno Clunet-coste

Raphaël Richert

A dental preform comprises a central portion formed by a plurality of first wire-like elements extending mostly in a first direction, and a first resin. An annular peripheral portion passes round the central portion perpendicularly to the first direction. The peripheral portion comprises second wire-like elements and a second resin. The peripheral portion comprises a plurality of layers arranged on one another perpendicularly to the first direction. Each layer has at least one turn formed by at least one of the second wire-like elements, the at least one second wire-like element presenting a longitudinal direction that is offset with respect to the first direction by an angle comprised between 10° and 80° or between 100° and 170°. The second wire-like elements of two consecutive layers present opposite orientations.

Dental preform, method for manufacturing one such preform and method for manufacturing a dental prosthesis from one such preform

A data set representative of a dental part to be fabricated is provided. The data set defines dimensional and mechanical characteristics of the dental part. First and second patterns are made by 3D printing. A first set of fibres is deposited on a top surface of the first pattern before the second pattern is deposited. The first set of fibres includes a plurality of first fibres oriented in a first set of directions by means of the data set. A second set of fibres is deposited on a top surface of the second pattern. The second set of fibres includes a plurality of second fibres oriented in a second set of directions defined by means of the data set. A third pattern is made from a third resin by 3D printing by means of the data set.

Method for fabricating a dental part and device for fabricating a dental part

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.

Crown and root dental restoration, method for performing one such restoration and method for etching one such dental restoration

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.

Reinforcing structure for coronal-radicular dental restoration, method for carrying out coronal-radicular dental restoration, and coronal-radicular restoration

A structured reinforcement for a coronal-radicular dental reconstitution comprising:

Reinforcement structure for coronal-radicular dental reconstitution, method for performing coronal-radicular dental reconstitution, coronal-radicular dental reconstitution

A dental bridge armature designed to be screw-fastened onto dental implants, the dental bridge armature having reinforcing elements formed by long fibers pre-impregnated with photo-polymerizable resin which are either woven or in bundles. The reinforcing elements are in the form of a fibrous framework including a main brace and base reinforcing elements wound around a series of implant abutments screwed onto the implants. Secondary braces are also wound around the main brace and the base reinforcing elements. The braces form an angle between 15&#xb0; and 85&#xb0; with the base reinforcing elements. The armature is then included in a PMMA coating resin by a pressing or injection technique.

Implant-supported braced dental bridge armature made from composite material, and method for manufacturing the armature

A preform made of composite material designed to be formed on a laboratory model and to be integrated in a base plate of a dental prosthesis. The preform comprises a grid formed by a meshing of weft threads and warp threads coated in an impregnating resin, the space between the meshes being exempt of fibers and resin, and determining a surface of free spaces of more than 25% of the total surface of the grid. The weft threads are fixed onto the warp threads at the nodes of the meshing to enable the preform to be handled and to be formed on a laboratory model, without the impregnating resin creeping into the spaces of the meshes.

Reinforcing preform in the form of a meshed grid and composite material with preimpregnated fibers for a dental prosthesis, and method for producing the grid

A frame for a removable dental prosthesis has a base part having a layer of woven fabrics of a composite material, which is arranged as a support shell in the form of an arch designed to cover at least a part of the patient's jaw. An intermediate part extends along the top of the base part to form a beam having a good crushing strength, and forming the limits of the section of the frame. A surface part forms a cap totally covering the base part and intermediate part, the material of the cap being formed by a laminated fiber reinforcement material having an organic matrix of the same nature as that of the base part. The assembly, made up of the base part, the intermediate part and the surface part form, after shaping and polymerization, a self-supporting profiled part having a good breaking resistance.

Frame made of composite material for a removable dental prosthesis, and manufacturing process

The invention concerns an insert for filling the dental canal comprising means for anatomically and physiologically filling up the root canal,, comprising a ductile and resilient core,made of a polymerised composite material, sheathed in one or several sleeves,made of a composite material pre-impregnated with resin, being in a first pasty state previous to polymerisation so as to make the insert flexible and malleable before and during its introduction into the root canal,Said material is then polymerized at will by cross-linking means to be in a second polymerized state after the insert has been introduced in said canal. The upper part,of the insert which emerges from the root canal,can advantageously be used as prop or pivot for a coronal reconstitution. Thus, the same material is used for filling the root canal and for reinforcing the residual structures of the tooth. The canal obturator and the anchoring pivot are made of one and the same material.

Endodontic insert pre-impregnated with reinforcing fibres for filling the dental canal

The invention relates to a dental prosthesis comprising a support shell intended to cover a stump and an external finish coating covering the support shell, the prosthesis being characterized in that the support shell is comprised of a composite material and in that the coating is comprised of at least one layer having at least one component of the same nature as at least one component of the composite material matrix of the shell. The invention also relates to a piece of matrix fabric preimpregnated before cross-linking for the manufacture of the shell, as well as to a method and a machine for manufacturing the dental prosthesis according to the invention.

Dental prosthesis with composite support shell and coating,

A fabric part preimpregnated with a matrix before hardening designed to form, after shaping, hardening and depositing of an external finishing coating, a support shell of a dental prosthesis. The matrix has at least one component of the same nature as at least one component of the coating.

A machine for implementation of a method for making a dental prothesis. The machine has a tight enclosure, a plate for receiving a shaping model in the enclosure, a flexible fluid-proof membrane separating the enclosure into two chambers, a device (means) for creating a lower fluid pressure in one of the two chambers, and a device (means) for cross-linking parts placed on the shaping model.

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Voiron, France

Bernard Maneuf