Dental prosthesis, associated semi-finished product and kit

Patent metadata

Field	Value
Publication number	US-11819370-B2
Application number	US-201916418329-A
Country	US
Kind code	B2
Filing date	May 21, 2019
Priority date	May 24, 2018
Publication date	Nov 21, 2023
Grant date	Nov 21, 2023

Abstract

A dental prosthesis having a prosthesis base and a set of teeth, namely a full set of teeth or a partial set of teeth, is provided, wherein the prosthesis base comprises at least one dental recess for receiving the set of teeth, and wherein the set of teeth is glued into the at least one dental recess by an adhesive. In the dental recess and/or in or at the set of teeth an adhesive channel is configured which extends along the at least one dental recess or the dental arch in its main direction of extension. It starts at an adhesive filling opening whose configuration is adapted to a filling element.

First claim

The invention claimed is:

1. A dental prosthesis comprising
a prosthesis base ( 38 ),
a dental arch ( 36 ), and
an adhesive for adhering the prosthesis base and dental arch together,
wherein the prosthesis base ( 38 ) comprises at least one dental recess ( 40 ) for receiving the dental arch ( 36 ), and
wherein the dental arch ( 36 ) is glued into the at least one dental recess ( 40 ) by the adhesive,
wherein the dental recess ( 40 ) and/or at the dental arch ( 36 ) comprise an adhesive channel ( 14 ) configured to extend along the at least one dental recess ( 40 ) or the dental arch ( 36 ) in a main direction of the dental arch,
wherein starting from the adhesive channel ( 14 ) which is configured as a tree-structure comprising a main channel ( 16 ) from which side branches extend away from the main channel ( 16 ), the main channel ( 16 ) extends centrally at a basal side of the dental arch and extends from a palatal/lingual direction to a vestibular direction, a three-dimensionally shaped adhesive surface ( 20 ) extends between the dental arch ( 36 ) and the prosthesis base ( 38 ) and reaches gingival margin ( 22 ),
wherein the side branches ( 18 ) extend in the vestibular and/or palatal/lingual direction starting from the main channel ( 16 ) and terminate before the gingival margin ( 22 ).

2. The dental prosthesis as claimed in claim 1 ,
wherein the dental arch ( 36 ) comprises a full set of teeth or a partial set of teeth.

3. The dental prosthesis as claimed in claim 1 ,
wherein the adhesive channel ( 36 ) starts at an adhesive filling opening ( 19 ) having a configuration adapted to a filling carrier ( 24 ).

4. The dental prosthesis as claimed in claim 3 ,
wherein at the filling opening ( 19 ) of the adhesive channel ( 14 ) a syringe adapter ( 28 ) is attached either as a separate element or molded in the prosthesis base material ( 32 ) and/or the dental arch material, by which adapter ( 28 ) the adhesive may be inserted into the adhesive channel ( 14 ).

5. The dental prosthesis as claimed in claim 4 ,
wherein the syringe adapter ( 28 ) is attached either as a separate element or molded in the dental arch material, by which adapter ( 28 ) the adhesive may be inserted into the adhesive channel ( 14 ), wherein at an end of the adhesive channel, opposite the adapter ( 28 ), a ventilation opening ( 46 ) is configured which is closed by a filter element ( 48 ).

6. The dental prosthesis as claimed in claim 1 ,
wherein the adhesive channel ( 14 ) extends centrally at the basal and/or gingival side of the dental arch ( 36 ) and/or prosthesis base ( 38 ) and/or that the adhesive channel ( 14 ) comprises a round cross section.

7. The dental prosthesis as claimed in claim 6 ,
wherein the adhesive channel ( 14 ) comprises a round cross section which is an elliptical or circular cross section.

8. The dental prosthesis as claimed in claim 1 ,
wherein the adhesive channel ( 14 ) has a smaller extension in the occlusal/gingival direction than in the palatal/vestibular direction.

9. The dental prosthesis as claimed in claim 8 ,
wherein a height/width ratio of the channel in the occlusal/gingival direction is at a height/width ratio of 1:1.1 or 1:1.5, and in the palatal/vestibular direction is at a height/width ratio of 1:5 or 1:1.5.

10. The dental prosthesis as claimed in claim 1 ,
wherein the adhesive channel ( 14 ) comprises a height H of between 0.3 mm and 5 mm or between 0.5 mm and 1.5 mm in the gingival/occlusal direction, and/or
wherein the flow area of the adhesive channel ( 14 ) at least partially decreases starting from the filling opening ( 19 ).

11. The dental prosthesis as claimed in claim 1 ,
wherein the adhesive surface ( 20 ) extending to the sides of the adhesive channel ( 14 ) comprises a thickness of between 50 and 1000 μm or between 150 and 350 μm.

12. The dental prosthesis as claimed in claim 1 ,
wherein the dental arch ( 36 ) is produced from a one-piece tooth- or semi-finished product by a subtractive or additive process, and
wherein the receiving portion of the dental arch ( 36 ) extending into the at least one dental recess ( 40 ) of the prosthesis base ( 38 ) comprises a cross section having diverging side flanks ( 60 , 62 ).

13. The dental prosthesis as claimed claim 12 ,
wherein the dental arch comprises a substantially uniform cross section of the receiving portion for the reception in the dental recess ( 40 ) along its extension, which taper slightly towards the incisor region ( 50 ), and
wherein the adhesive channel ( 14 ) is configured at least partially in the basal surface ( 64 ) of the receiving portion of the dental arch ( 36 ) in the dental recess ( 40 ).

14. The dental prosthesis as claimed in claim 1 ,
wherein the dental arch ( 36 ) comprises individual teeth ( 37 a , 37 b ) which are each glued into the dental recess ( 40 ) or into the dental recesses,
wherein the adhesive channel ( 14 ) is provided centrally at the basal surface ( 64 ) of the individual teeth.

15. The dental prosthesis as claimed in claim 1 ,
wherein the adhesive channel side branches ( 18 ) are each open to the sides in the mesial/distal direction, and
wherein the adhesive channel side branches merge into the adhesive surface ( 20 ) thereat.

16. A dental prosthesis comprising
a prosthesis base ( 38 ),
a dental arch ( 36 ), and
an adhesive for adhering the prosthesis base and dental arch together,
wherein the prosthesis base ( 38 ) comprises at least one dental recess ( 40 ) for receiving the dental arch ( 36 ), and
wherein the dental arch ( 36 ) is glued into the at least one dental recess ( 40 ) by the adhesive,
wherein the dental recess ( 40 ) and/or at the dental arch ( 36 ) comprise an adhesive channel ( 14 ) configured to extend along the at least one dental recess ( 40 ) or the dental arch ( 36 ) in a main direction of the dental arch,
wherein starting from the adhesive channel ( 14 ) which is configured as a tree-structure comprising a main channel ( 16 ) from which side branches extend away from the main channel ( 16 ), the main channel ( 16 ) extends from and covers an area from a palatal/lingual direction to a vestibular direction, a three-dimensionally shaped adhesive surface ( 20 ) extends between the dental arch ( 36 ) and the prosthesis base ( 38 ) and reaches a gingival margin ( 22 ),
wherein the side branches ( 18 ) extend in the vestibular and palatal/lingual direction starting from the main channel ( 16 ) of the adhesive channel ( 14 ) and terminating before the gingival margin ( 22 ).

Assignees

• Ivoclar Vivadent Ag

Inventors

• Häfele Clemens Andreas
• Krybus Robert Wolfgang
• Hagenbuch Konrad

Classifications

• A61C13/16 Primary

  Curing flasks; Holders therefor · CPC title

• A61C13/04

  made by casting · CPC title

• A61C13/10 Primary

  Fastening of artificial teeth to denture palates or the like {(A61C8/0048 takes precedence)} · CPC title

• A61C13/1006

  characterised by a tooth shape which improves retention · CPC title