PROSTHETIC DENTAL DEVICE

• US 20070015110A1
• Filed: 05/24/2006
• Published: 01/18/2007
• Est. Priority Date: 05/26/2005
• Status: Abandoned Application

• Current Assignee: Zimmer Dental Inc. (Zimvie Incorporated)
• Original Assignee: Zimmer Dental Inc. (Zimvie Incorporated)
• Inventors: Zhang, Kai, Bassett, Jeffrey, Day, Thomas, Brinkerhuff, Hallie, Donahoe, Ryan
• Application Number:
  US11/420,024
• Publication Number:
  US 20070015110A1
• Time in Patent Office: Days
• US Class Current: 433/173
• CPC Class Codes: A61C 8/0012 characterised by the material or composition, e.g. ceramics, surface layer, metal alloy use of specific materials A61K6/00
• CPC Class Codes: A61K 6/802 comprising ceramics
• CPC Class Codes: A61K 6/838 Phosphorus compounds, e.g. apatite
• CPC Class Codes: A61K 6/887 Compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
• CPC Class Codes: A61K 6/891 Compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
• CPC Class Codes: A61L 2400/12 Nanosized materials, e.g. nanofibres, nanoparticles, nanowires, nanotubes; Nanostructured surfaces
• CPC Class Codes: A61L 2430/12 for dental implants or prostheses
• CPC Class Codes: A61L 27/446 with other specific inorganic fillers other than those covered by A61L27/443 or A61L27/46
• CPC Class Codes: A61L 27/46 with phosphorus-containing inorganic fillers
• CPC Class Codes: C08L 71/00 Compositions of polyethers obtained by reactions forming an ether link in the main chain of polyacetals C08L59/00; of epoxy resins C08L63/00; of polythioether-ethers C08L81/02; of polyether-sulfones C08L81/06; Compositions of derivatives of such polymers
• CPC Class Codes: C08L 81/06 Polysulfones; Polyethersulfones

Abstract

A prosthetic dental device comprised of a composite material including a polymer material and a ceramic material mixed within the polymer material. In one embodiment, the ceramic fillers are substantially, homogeneously dispersed within the polymer material. In one embodiment, the ceramic material is bonded to the polymer material through a coupling agent. In addition, the prosthetic dental device can be comprised of a different composite material. This composite material includes a ceramic matrix having pores and an organic material infiltrated into the pores. To construct the ceramic matrix, ceramic particles, a binder material, and a porogen material are mixed to create a composite material which is then molded and heated to create a substantially rigid ceramic structure. At least some of the binder material and the porogen material are evaporated during the heating step to create pores in the matrix which are filled with the organic material.

Claims

1. A prosthetic dental device, comprising:

a body formed of a composite material, said composite material including a polymer material and a ceramic material mixed within said polymer material, said composite material having a tensile modulus greater than or equal to 630 ksi.

2. The prosthetic dental device of claim 1, wherein said tensile modulus of said composite material is between 630 ksi and about 962 ksi.

3. The prosthetic dental device of claim 1, wherein said ceramic material includes calcium phosphate particles.

4. The prosthetic dental device of claim 1, wherein said composite material further includes a coupling agent bonding said polymer material to said ceramic material, said composite material having an average maximum strain greater than or equal to 0.5 percent.

5. The prosthetic dental device of claim 1, wherein said ceramic material includes a plurality of fibers, each fiber defining a longitudinal axis and variable cross-sections transverse to said axis defining relatively wide first portions connected by relatively narrow second portions and pockets defined intermediate adjacent first and second portions, said polymer material received within said pockets.

6. The prosthetic dental device of claim 1, wherein said ceramic material includes zirconia fibers, said composite material further including titanium dioxide mixed therein in addition to said ceramic material.

7. The prosthetic dental device of claim 1, wherein said composite material further comprises at least one pigment mixed therein in addition to said ceramic material.

8. The prosthetic dental device of claim 1, wherein said prosthetic dental device is an abutment.

9. A prosthetic dental device, comprising:

a body comprised of a composite material, said composite material including a polymer material and a ceramic material mixed within said polymer material, said ceramic material including a plurality of fibers, each fiber defining a longitudinal axis and variable cross-sections transverse to said axis defining relatively wide first portions connected by relatively narrow second portions and pockets defined intermediate adjacent first and second portions, said polymer material received within said pockets.

10. The prosthetic dental device of claim 9, further comprising ceramic particles bonded to said fibers.

11. The prosthetic dental device of claim 9, wherein said ceramic particles include titanium dioxide particles.

12. The prosthetic dental device of claim 9, wherein said composite material further comprises at least one pigment mixed therein in addition to said ceramic material.

13. The prosthetic dental device of claim 9, wherein said composite material further includes a coupling agent, said coupling agent bonding said ceramic material to said polymer material.

14. The prosthetic dental device of claim 9, wherein said prosthetic dental device is an abutment.

15. The prosthetic dental device of claim 9, wherein said body is comprised of a second composite material.

16. A prosthetic dental device, comprising:

an implant coupling structure configured to connect the dental device to an implant; and

a body comprised of a composite material including a polymer material and ceramic nanoparticles dispersed within said polymer material.

17. The prosthetic dental device of claim 16, said composite material further including titanium dioxide particles mixed therein.

18. The prosthetic dental device of claim 16, wherein said composite material further comprises at least one pigment mixed therein in addition to said ceramic material.

19. The prosthetic dental device of claim 16, wherein said dental device is an abutment.

20. The prosthetic dental device of claim 16, wherein said composite material further includes a coupling agent, said coupling agent bonding said ceramic material to said polymer material.

21. The prosthetic dental device of claim 16, wherein said implant coupling structure is comprised of titanium.

22. The prosthetic dental device of claim 16, wherein said body is comprised of a second composite material.

23. A prosthetic dental device, comprising:

a reinforcing element; and

a composite material molded about said reinforcing element to form the dental device, said composite material comprised of a polymer material and a ceramic material dispersed within said polymer material.

24. The prosthetic dental device of claim 23, wherein said reinforcing element is metal.

25. The prosthetic dental device of claim 23, wherein said reinforcing element is encapsulated by said composite material.

26. The prosthetic dental device of claim 23, wherein said ceramic material includes oriented fibers.