Support for material to be fired for a ceramic dental prosthesis

• US 20040137399A1
• Filed: 10/10/2003
• Published: 07/15/2004
• Est. Priority Date: 10/18/2002
• Status: Active Grant

• Current Assignee: Klaus Fleischfresser
• Original Assignee: Klaus Fleischfresser
• Inventors: Fleischfresser, Klaus
• Granted Patent: US 6,869,280 B2
• Time in Patent Office: Days
• US Class Current: 432/258
• CPC Class Codes: A61C 13/12 Tools for fastening artificial teeth; Holders, clamps, or stands for artificial teeth A61C8/0089 takes precedence
• CPC Class Codes: A61C 13/20 Methods or devices for soldering, casting, moulding or melting A61C13/04, A61C13/081 take precedence
• CPC Class Codes: A61C 19/10 Supports for artificial teeth for transport or for comparison of the colour
• CPC Class Codes: F27D 5/0043 Supports specially adapted for dental prosthesis

Abstract

A support for a material to be fired for a ceramic dental prosthesis, having a support plate dimensionally stable when heat is applied and having a plurality of passages which are arranged perpendicularly relative to the support plate surface. A bundle of several pins, which in an undeformed state extend parallel with each other, can be introduced into each one of the passages for placing the dental prosthesis to be fired on them.

Claims

1. A support for a material to be fired for a ceramic dental prosthesis (10), having a support plate (12) which is dimensionally stable when heat is applied and having a plurality of passages (14) arranged perpendicularly relative to a support plate surface, the support comprising:

a bundle (16.1, 16.2, 16.3, 16.4) having a plurality of pins (18, 19) which in an undeformed state extend parallel with respect to each other is introducible into each of the passages (14) for placing the dental prosthesis (10) to be fired on the pins (18, 19).

2. The support for the material to be fired in accordance with claim 1, wherein the bundle (16.1) of the pins inserted into each of the passages (14) is fixable one of to the support plate (12) and on a respective passage (14) by a temperature-resistant adhesive (20.1, 20.2).

3. The support for the material to be fired in accordance with claim 2, wherein on an end the bundle (16.2) of the pins one of is maintained together by a high temperature-resistant connecting piece (24) and is welded together.

4. The support for the material to be fired in accordance with claim 3, wherein the pins of the bundle (16.2) of the pins are welded together at one end of the pins.

5. The support for the material to be fired in accordance with claim 4, wherein the connecting piece (24) at least one of at least partially encloses an end of the bundle (16.2) of the pins and is fixed in place on the end of the bundle (16.2) of the pins by a temperature-resistant adhesive (25).

6. The support for the material to be fired in accordance with claim 5, wherein a tip of each one of the pins (18) is supportively contactable with the dental prosthesis (10) to be fired at a molded inner surface (26) facing away from an occlusal surface (24), and the dental prosthesis (10) is seated at a distance from the support plate (12) by the pins (18).

7. The support for the material to be fired in accordance with claim 6, wherein for a supportive contact with the dental prosthesis (10) to be fired, the pins (18, 19) ofthe bundle (16.1, 16.2) are one of bendable outside ofthe passages (14) in spatial directions (x, y, z) with respect to each other and fanned open.

8. The support for the material to be fired in accordance with claim 7, wherein the pins (18, 19) are of one oftantalum, a high temperature-resistant metal alloy, and a high temperature-resistant glass fiber material or ceramic material.

9. The support for the material to be fired in accordance with claim 8, wherein each of the pins (18, 19) has a diameter between 0.2 mm and 0.7 mm.

10. The support for the material to be fired in accordance with claim 9, wherein at least one of the support plate (12) and the connecting piece (24) is of one of a high temperature-resistant metallic material, a sinter metal, an aluminum oxide ceramic material and a temperature and dimensionally stable ceramic material.

11. The support for the material to be fired in accordance with claim 10, wherein 50 to 150 of the passages (14) per cm² are arranged in the support plate (12), which extend parallel with respect to each other and perpendicular with respect to the support plate surface.

12. The support for the material to be fired in accordance with claim 11, wherein the passages (14) respectively have one of a circular, a square and a hexagonal cross-sectional face in a honeycomb structure.

13. The support for the material to be fired in accordance with claim 1, wherein on an end the bundle (16.2) of the pins one of is maintained together by a high temperature-resistant connecting piece (24) and is welded together.

14. The support for the material to be fired in accordance with claim 1, wherein the pins of the bundle (16.2) of the pins are welded together at one end of the pins.

15. The support for the material to be fired in accordance with claim 1, wherein a connecting piece (24) at least one of at least partially encloses an end of the bundle (16.2) of the pins and is fixed in place on the end of the bundle (16.2) of the pins by a temperature-resistant adhesive (25).

16. The support for the material to be fired in accordance with claim 1, wherein a tip of each one of the pins (18) is supportively contactable with the dental prosthesis (10) to be fired at a molded inner surface (26) facing away from an occlusal surface (24), and the dental prosthesis (10) is seated at a distance from the support plate (12) by the pins (18).

17. The support for the material to be fired in accordance with claim 1, wherein for a supportive contact with the dental prosthesis (10) to be fired, the pins (18, 19) of the bundle (16.1, 16.2) are one of bendable outside of the passages (14) in spatial directions (x, y, z) with respect to each other and fanned open.

18. The support for the material to be fired in accordance with claim 1, wherein the pins (18, 19) are of one of tantalum, a high temperature-resistant metal alloy, and a high temperature-resistant glass fiber material or ceramic material.

19. The support for the material to be fired in accordance with claim 1, wherein each of the pins (18, 19) has a diameter between 0.2 mm and 0.7 mm.

20. The support for the material to be fired in accordance with claim 1, wherein at least one of the support plate (12) and a connecting piece (24) is of one of a high temperature-resistant metallic material, a sinter metal, an aluminum oxide ceramic material and a temperature and dimensionally stable ceramic material.

21. The support for the material to be fired in accordance with claim 1, wherein 50 to 150 of the passages (14) per cm² are arranged in the support plate (12), which extend parallel with respect to each other and perpendicular with respect to the support plate surface.

22. The support for the material to be fired in accordance with claim 1, wherein the passages (14) respectively have one of a circular, a square and a hexagonal cross-sectional face in a honeycomb structure.