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Coping with standoffs

Imported: 24 Feb '17 | Published: 06 Jan '04

Steven M. Hurson

USPTO - Utility Patents

Abstract

A prosthodontic assembly comprises a restoration having a cavity defined by a first surface and an abutment positioned within the cavity. The assembly further comprises a plurality of standoffs positioned in between the first surface and the abutment to provide a gap. Methods for forming the restoration are also disclosed.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

These and other features of the invention will now be described with reference to the drawings of the preferred embodiments, which are intended to illustrate and not to limit the invention, and in which:

FIG. 1A is a side view of an exemplary final abutment.

FIG. 1B is a cross-sectional side view of the exemplary final abutment of FIG. 1B, attached to an exemplary dental implant.

FIG. 2A is a side view of an exemplary analogue of the final abutment of FIG.

1.

FIG. 2B is another side view the exemplary analogue rotated 90 degrees from the view shown in FIG.

2A.

FIG. 2C is a cross-sectional side view of the exemplary analogue of FIG. 2A embedded in a plaster model.

FIG. 2D is a cross-sectional side view of the exemplary analogue of FIG. 2A covered with a wax model of a metal coping.

FIG. 2E is a cross-sectional side view of an investment casting of the wax model of FIG.

2D.

FIG. 2F is a cross-sectional side view of a final restoration attached to the final abutment of FIG.

1B.

FIG. 3A is a bottom plan view of a coping having certain features and advantages according to the present invention.

FIG. 3B is a cross-sectional view taken along line B—B of FIG.

3A.

FIG. 3C is a cross-sectional view taken along line C—C of FIG.

3A.

FIG. 3D is a close-up view of detail D of FIG.

3B.

FIG. 3E is a cross-sectional view taken though line

3E-

3E of FIG.

3C.

FIG. 4 is a cross-sectional side view of the coping of FIGS. 3A-D placed over the analogue of FIG. 2B embedded in a plaster model.

FIG. 5A is the coping of FIG. 4 covered with a wax model of a metal coping.

FIG. 5B is a cross-sectional view an investment casting of the coping and the wax model of FIG.

5A.

FIG. 5C is a cross-sectional side view of a metal coping and final restoration having certain features and advantages according to the present invention.

FIG. 6 is cross-sectional side view of another arrangement of a coping and final restoration having certain features and advantages according to the present invention.

FIG. 7A is a cross-sectional side view of another arrangement of a coping having certain features and advantages according to the present invention.

FIG. 7B is cross-sectional side view of a model of a final abutment having certain features and advantages according to the present invention.

FIG. 8A is a side view of a final abutment having certain features and advantages according to the present invention.

FIG. 8B is another side view the final abutment rotated 90 degrees from the view shown in FIG.

8A.

FIG. 8C is top plan view of the final abutment of FIG.

8A.

FIG. 8D is a bottom plan view of the final abutment of FIG.

8A.

FIG. 9A is a side view of an analogue having certain features and advantages according to the present invention.

FIG. 9B is another side view the analogue rotated 90 degrees from the view shown in FIG.

9A.

FIG. 9C is top plan view of the analogue of FIG.

9A.

FIG. 9D is a bottom plan view of the analogue of FIG.

9A.

FIG. 10A is a bottom plan view of a modified coping having certain features and advantages according to the present invention.

FIG. 10B is a cross-sectional view taken along line B—B of FIG.

10A.

FIG. 10C is a close-up view of detail C of FIG.

10B.

FIG. 11 is a cross-sectional side view of the coping of FIGS. 10A-C placed over the analogue of FIGS. 9A-D.

FIG. 12A is a bottom plan view of another modified coping having certain features and advantages according to the present invention.

FIG. 12B is a cross-sectional view taken along line B—B of FIG.

10A.

FIG. 12C is a cross-sectional view taken along line C—C of FIG.

10A.

FIG. 13 is a cross-sectional side view of the coping of FIGS. 12A-C placed over the analogue of FIGS.

9A-D.

Claims

1. A prosthodontic assembly comprising:

2. A prosthodontic assembly as in claim 1, wherein at least some of the standoffs are on the abutment.

3. A prosthodontic assembly as in claim 1, wherein at least some of the standoffs are on the first surface.

4. A prosthodontic assembly as in claim 1, wherein the gap is at least 10 microns thick.

5. A prosthodontic assembly as in claim 1, wherein the gap is between approximately 25 microns and 50 microns thick.

6. A prosthodontic assembly as in claim 1, wherein the plurality of standoffs have a tapered shape.

7. A prosthodontic assembly as in claim 6, wherein the first surface is made of gold.

8. A prosthodontic assembly as in claim 6, wherein the first surface is made of a ceramic material.

9. A prosthodontic assembly as in claim 1, wherein the final restoration includes a flanged region that is configured to rest upon a shoulder of the abutment.

10. A prosthodontic assembly comprising:

11. A prosthodontic assembly as in claim 10, wherein the first prosthodontic is a final abutment.

12. A prosthodontic assembly as in claim 10, wherein the first prosthodontic is an analogue of a final abutment.

13. A prosthodontic assembly as in claim 10, wherein the gap is at least 10 microns thick.

14. A prosthodontic assembly as in claim 13, wherein the gap is between approximately 25 microns and 50 microns thick.

15. A prosthodontic assembly as in claim 10, wherein the coping is made of a material that can be melted and removed from a mold during an investment casting process.

16. A prosthodontic assembly as in claim 15, wherein the coping is made of plastic.

17. A prosthodontic assembly as in claim 10, wherein the coping is made from a material that is suitable for forming a portion of the final restoration.

18. A prosthodontic assembly as in claim 17, wherein the coping is made of gold.

19. A prosthodontic assembly as in claim 17, wherein the coping is made of a ceramic material.

20. A prosthodontic assembly as in claim 10, wherein the at least one of standoff has a tapered shape.

21. A prosthodontic assembly as in claim 10, wherein the coping includes a flanged region that is configured to rest upon a shoulder of the first prosthodontic component.

22. A prosthodontic assembly comprising:

23. A prosthodontic assembly as in claim 22, wherein the gap is at least 10 microns thick.

24. A prosthodontic assembly as in claim 22, wherein the gap is between approximately 25 microns and 50 microns thick.

25. A prosthodontic assembly as in claim 22, wherein the coping is made of a material that can be melted and removed from a mold during an investment casting process.

26. A prosthodontic assembly as in claim 25, wherein the coping is made of plastic.

27. A prosthodontic assembly as in claim 22, wherein the coping is made from a material that is suitable for forming a portion of the final restoration.

28. A prosthodontic assembly as in claim 27, wherein the coping is made of gold.

29. A prosthodontic assembly as in claim 27, wherein the coping is made of a ceramic material.

30. A prosthodontic assembly as in claim 22, wherein the plurality of standoffs have a tapered shape.

31. A prosthodontic assembly as in claim 22, wherein the coping includes a flanged region that configured to rest upon a shoulder of the abutment.

32. A prosthodontic assembly comprising:

33. A prosthodontic assembly as in claim 32, wherein the gap is at least 10 microns thick.

34. A prosthodontic assembly as in claim 32, wherein the gap is between approximately 25 microns and 50 microns thick.

35. A prosthodontic assembly as in claim 32, wherein the at least one standoff is made of gold.

36. A prosthodontic assembly as in claim 32, wherein the at least one standoff is made of a ceramic material.

37. A prosthodontic assembly as in claim 32, wherein the at least one standoff has a tapered shape.

38. A prosthodontic assembly comprising:

39. A prosthodontic assembly as in claim 38, wherein the gap is at least 10 microns thick.

40. A prosthodontic assembly as in claim 38, wherein the gap is between approximately 25 microns and 50 microns thick.

41. A prosthodontic assembly as in claim 38, wherein the coping is made of a material that can be melted and removed from a mold during an investment casting process.

42. A prosthodontic assembly as in claim 41, wherein the coping is made of plastic.

43. A prosthodontic assembly as in claim 38, wherein the coping is made from a material that is suitable for forming a portion of the final restoration.

44. A prosthodontic assembly as in claim 43, wherein the coping is made of gold.

45. A prosthodontic assembly as in claim 43, wherein the coping is made of a ceramic material.

46. A prosthodontic assembly as in claim 38, wherein the at least one of standoff has a tapered shape.