초록 ▼

Dental implants made at least in part of a porous tantalum material for enhancing the osseointegration of the dental implant into surrounding bone. For example, there is provided a dental implant which includes a porous tantalum portion and an outer portion having a color generally replicating the c

Dental implants made at least in part of a porous tantalum material for enhancing the osseointegration of the dental implant into surrounding bone. For example, there is provided a dental implant which includes a porous tantalum portion and an outer portion having a color generally replicating the color of natural teeth. The dental implant further comprises a core portion and the porous tantalum portion at least partially surrounds the core portion. An esthetic portion is disposed at least the outer portion and the porous tantalum portion is disposed for at least partially reinforcing the esthetic portion. After implantation of the implant, bone tissue may osseointegrate into the porous tantalum portion to anchor the implant in position within the surrounding bone. Other embodiments of implants are provided, each implant including at least a portion thereof formed of porous tantalum for improved osseointegration.

대표청구항 ▼

1. A pre-fabricated one-piece dental prosthetic device, comprising: a porous portion defining a longitudinal axis and having a first side substantially parallel to the longitudinal axis, the porous portion defining an abutment portion and an implant portion, wherein the implant portion is inserted i

1. A pre-fabricated one-piece dental prosthetic device, comprising: a porous portion defining a longitudinal axis and having a first side substantially parallel to the longitudinal axis, the porous portion defining an abutment portion and an implant portion, wherein the implant portion is inserted into and engaging bone when the dental prosthetic device is implanted, and wherein the abutment portion is configured to extend above a transmucosal region of the prosthetic device and receive a prosthesis; andan outer portion having a color generally replicating the color of natural teeth, the outer portion disposed on at least a portion of the abutment portion, along a portion of the transmucosal region, and to a point along the implant portion at the first side, the outer portion oriented to taper toward the porous portion until an exterior surface of the outer portion intersects the first side of the porous portion, the abutment portion extending above where the exterior surface of the outer portion intersects the first side of the porous portion. 2. The pre-fabricated one-piece dental prosthetic device of claim 1, further comprising an esthetic portion disposed proximal to at least the outer portion, and wherein the porous portion is disposed and arranged for reinforcing the esthetic portion. 3. The pre-fabricated one-piece dental prosthetic device of claim 1, wherein the porous portion being at least in part impregnated with esthetic material having a color generally replicating the color of natural teeth. 4. The pre-fabricated one-piece dental prosthetic device of claim 1, wherein the implant portion includes a bone engaging portion. 5. The pre-fabricated one-piece dental prosthetic device of claim 1, further comprising a core portion, and wherein the porous portion at least partially surrounds the core portion. 6. The pre-fabricated one-piece dental prosthetic device of claim 5, wherein the core portion comprises at least one metal selected from the group consisting of titanium, titanium alloy, stainless steel, zirconium, and cobalt-chromium-molybdenum alloy. 7. The pre-fabricated one-piece dental prosthetic device of claim 5, wherein the core portion comprises porous tantalum having pores at least partially impregnated with esthetic material. 8. The pre-fabricated one-piece dental prosthetic device of claim 1, further comprising an endosseous portion with a proximal portion, and wherein the outer portion at least partially covers the porous portion at the proximal portion to limit gingival tissue growth on the proximal portion. 9. The pre-fabricated one-piece dental prosthetic device of claim 1, wherein the porous portion defines a plurality of pores, and wherein esthetic material substantially fills the pores of the porous portion. 10. The pre-fabricated one-piece dental prosthetic device of claim 1, wherein the porous portion generally extends throughout the prosthetic device. 11. The pre-fabricated one-piece dental prosthetic device of claim 1, further comprising a coronal end portion integrally formed with a bone implant part, and wherein the porous portion is formed at the bone implant part, and wherein the coronal end portion includes the outer portion. 12. The one-piece dental prosthetic device of claim 1, wherein the outer portion has an exterior separate from the porous portion. 13. The pre-fabricated one-piece dental prosthetic device of claim 1, further comprising an esthetic portion disposed proximal to at least the outer portion, and wherein the esthetic portion comprises at least one of a polymer, a composite material, and a ceramic. 14. A pre-fabricated one-piece dental prosthetic device comprising: an abutment portion extending coronally with respect to a jaw bone and gingiva disposed on the jaw bone and configured to support a prosthetic tooth, the abutment portion having a transmucosal region, the abutment portion oriented to taper in the transmucosal region toward a porous metal matrix until an exterior surface of the abutment portion intersects the porous metal matrix;an implant portion integrally formed with the abutment portion and inserted into and engaging bone when the dental prosthetic device is implanted;a post; andthe porous metal matrix disposed adjacent to the post, wherein the post and the porous metal matrix extend from an apical end of the implant portion to above where the exterior surface of the abutment portion intersects the porous metal matrix and above the transmucosal region, and wherein the porous metal matrix has a part extending within the abutment portion such that a portion of the porous metal matrix extends above the gingival tissue of the jaw bone. 15. The pre-fabricated one-piece dental prosthetic device of claim 14, wherein the abutment portion further comprises an esthetic portion having a color generally replicating the color of natural teeth. 16. The pre-fabricated one-piece dental prosthetic device of claim 15, wherein the porous metal matrix has pores at least partially impregnated with esthetic material. 17. The pre-fabricated one-piece dental prosthetic device of claim 15, wherein the esthetic material substantially fills the pores. 18. The pre-fabricated one-piece dental prosthetic device of claim 15, wherein the part is impregnated with the esthetic portion. 19. The pre-fabricated one-piece dental prosthetic device of claim 15, wherein the esthetic portion forms an outer surface on the implant portion to limit gingival tissue attachment to the implant portion. 20. The pre-fabricated one-piece dental prosthetic device of claim 14, wherein the post further comprises a core made of at least a metal selected from the group consisting of titanium, titanium alloy, stainless steel, zirconium, and cobalt-chromium-molybdenum alloy. 21. The pre-fabricated one-piece dental prosthetic device of claim 14, wherein the post has a greater width within the abutment portion than at the implant portion. 22. The pre-fabricated one-piece dental prosthetic device of claim 14, wherein the porous metal matrix comprises tantalum. 23. A pre-fabricated one-piece dental prosthetic device, comprising: an abutment portion configured to support a prosthesis, the abutment portion at least partially made of a filler material and porous metal having pores, wherein at least some of the pores of the porous metal are impregnated with the filler material, the abutment portion including a non-porous outer layer disposed on at least a portion of the abutment portion, the outer layer made at least partially of an esthetic material having a color generally replicating the color of natural teeth; andan apical portion integrally formed with the abutment portion, the apical portion configured to engage bone, wherein the porous metal is configured to extend from above a transmucosal region of the abutment portion down to an apical end of the apical portion. 24. The pre-fabricated one-piece dental prosthetic device of claim 23, wherein the filler material is the same material as the esthetic material. 25. The one-piece dental prosthetic device of claim 23, wherein the outer layer is disposed on at least one of: a coronal end of the abutment portion, a side of the abutment portion, anda gingival region of the prosthetic device. 26. A dental prosthetic device, comprising: a dental implant having a porous portion defining an abutment portion configured to receive a prosthesis and an implant portion configured to be inserted into and engage bone when the dental prosthetic device is implanted, the porous portion extending from an apical end of an implant portion to a coronal end of the abutment portion, and the porous portion configured to extend from within a jaw bone to above both the jaw bone and gingiva disposed on the jaw bone when the dental implant is fully assembled on the jaw bone; anda non-porous outer layer having a color generally replicating the color of natural teeth, the non-porous outer layer disposed on at least a portion of the abutment portion.