DENTAL RESTORATION PROCESS

Claims

1. A healing element (10) in one piece, and comprising an upper part (31) intended to be in contact with the gum (63) and a lower part (32) which comprises a fixing device at one of its ends for an implant (60), the upper part (31) of the healing element (10) comprising a side surface (13), intended to be integrated within a gum in order to shape the gum during the healing of the latter, of anatomical shape defined by a flat transverse section through a plane perpendicular to its side surface (13), and an end surface (14), whose shape or the projection of this end surface on a horizontal plane parallel to the gingival surface (64) after positioning in the mouth reproduces said flat transverse section, a part of the side surface (13) and of the end surface (14) forming an emergent surface, which is intended to remain outside the gum, the emergent surface being asymmetrical with respect to at least one median plane, perpendicular to the emergent surface, the healing element being characterized in that it comprises a through-opening (11) for the passage of a screw (40) and in that it comprises the screw (40) intended to fix the healing element into an implant, the screw comprising an indicator for indicating the height of the healing element.

2. The healing element (10) as claimed in the preceding claim, characterized in that the emergent surface is asymmetrical in a horizontal and / or vertical plane, in particular the height of the healing element (10) being greater on the lingual side than its height on the opposite side.

3. The healing element (10) as claimed in either of claims 1 and 2, characterized in that it comprises, at the opening (11), at least one thread (34) suitable for cooperating with a threaded part (42) of a screw (40) in order to prevent separation of the screw (40) and the healing element (10) by a simple translational movement, and / or in that it comprises a conical bearing surface (33) able to cooperate with a conical portion of a screw head (41) in order to seal an interface between the screw (40) and the healing element (10), and / or in that it comprises a frustoconical portion (36) able to cooperate with a conical bearing surface (23) of the implant (60) in order to seal an interface between the implant (60) and the healing element (10) and to reduce to zero any translational play between the healing element (10) and the implant (60).

4. The healing element (10) as claimed in one of the previous claims, characterized in that it is made from a polymer material, in particular from PEEK material, or from metal, zirconium or titanium.

5. The healing element (10) as claimed in one of previous claims, characterized in that the emergent surface of the healing element (10) is asymmetrical in a horizontal and / or vertical plane with respect to at least one median plane perpendicular to the emergent surface and passing through the center of the emergent surface or comprising a central axis (18) of the healing element.

6. The healing element (10) as claimed in one of the previous claims, characterized in that the healing element (10) comprises an anti-rotation element, in particular a portion of hexagonal cross section (35), for cooperating with an anti-rotation element of an implant (60), in particular an opening of hexagonal cross section (22), and for ensuring fixation of the healing element (10) in a single orientation, without rotation about an implant (60).

7. The healing element (10) as claimed in one of previous claims, characterized in that those parts of the emergent surface of the healing element (10) that are intended for a positioning oriented toward the inside and outside, respectively, of the mouth have a different shape and in particular a different height.

8. The healing element (10) as claimed in one of previous claims, characterized in that a section transverse to the side surface (13) of the healing element (10) or a projection on a parallel plane of the emergent surface of the healing element has: - a substantially trapezoidal shape or a substantially polygonal or triangular or square or rectangular or ovoid shape, or a substantially polygonal shape with rounded corners; and / or - a part intended for a positioning oriented toward the outside of the mouth, of larger dimension than a part intended for a positioning oriented toward the inside.

9. The healing element (10) as claimed in one of previous claims, characterized in that the screw indicator for indicating the height of the healing element (10) comprises a color, or a laser marking and / or one or more barcodes and / or data matrix codes.

10. A dental restoration method comprising a step of determining a positioning of a dental implant (60), integrated in a bone structure (62) of an individual, from the identification and positioning of a one-piece healing element (10) according to one of previous claims, fixed at one of its ends in the implant (60) by way of a screw (40) that cooperates with a through-opening (11) of the healing element (10) and a threaded opening (21) of the implant (60), the healing element (10) comprising a side surface (13) intended to be integrated within a gum in order to shape the gum during the healing of the latter, and an end surface (14), a part of the side surface (13) and of the end surface (14) forming an emergent surface, which is intended to remain outside the gum, which is asymmetrical with respect to at least one perpendicular median plane, characterized in that the step of determining the positioning of the implant (60) comprises the following sub-steps: - taking a manual impression to create a replica of the dental arch which is then scanned to reconstruct a digital image, or taking a digital impression of an oral space comprising the healing element (10) fixed on the implant (60); - automatically detecting the positioning of the implant (60) by identifying: - the axis of the implant corresponding to an axis (18) of the healing element identified by the geometry of its surface emergent from the gum (63) or from an association with a healing element stored in a database, in particular from its reference input in a man-machine interface or its automatic recognition by the shape of its emergent part and / or by manual input of the positioning of several points of the emergent surface on a graphic representation on a man-machine interface; - the orientation of the implant from the orientation of the surface emergent from the gum or from an association with a healing element stored in a database, in particular from its reference input in a man-machine interface or its automatic recognition by the shape of its emergent part and / or by manual input of the positioning of several points of the emergent surface on a graphic representation on a man-machine interface; - the height of the implant by determining the height of the healing element, from a color or an indicator of the screw (40).

11. The dental restoration method as claimed in the preceding claim, characterized in that the emergent surface is asymmetrical in a horizontal and / or vertical plane, in particular the height of the healing element (10) being greater on the lingual side than its height on the opposite side.

12. The dental restoration method as claimed in one of the claims 10 or 11, characterized in that the healing element (10) is produced by machining and / or by molding and / or by addition of material.

13. The dental restoration method as claimed in one of claims 10 to 12, characterized in that the emergent surface of the healing element (10) is asymmetrical with respect to at least one median plane perpendicular to the emergent surface and passing through the center of the emergent surface or comprising a central axis (18) of the healing element.

14. A method for producing a dental restoration abutment intended to be fixed to a dental implant (60) at a first end and to receive a prosthesis at its second end, characterized in that it comprises implementing a dental restoration method as claimed in one of claims 10 to 13 and a step of producing a restoration abutment by deducting the final geometry of the restoration abutment from the detected position of the implant and from the entire gingival volume defined by the healing element.