Dental prosthesis forming block and method for producing a dental prosthesis from the dental prosthesis forming block
AssigneeDENTSPLY SIRONA Inc.
InventorsSascha Schneider, Peter Fornoff
Life of this patent
Estimating the term…
Abstract
The present invention relates to a dental prosthesis forming block (10) for producing a dental prosthesis (50). The forming block having a pin (20) with a self-tapping outer thread, which is arranged on a first surface (11) of the dental prosthesis forming block (10). The invention further relates to a method for producing a dental prosthesis (50). In this method the dental prosthesis block (10) is provided and the dental prosthesis (50) is produced by removing material from the dental prosthesis forming block (10) by a CAD/CAM method, such that the pin (20) forms part of the finished dental prosthesis (50).
Claims10
A dental prosthesis forming block for producing a dental prosthesis, the dental prosthesis forming block comprising:
- a cuboid shaped material comprising an inner material and an outer material that is different from the inner material, the cuboid shaped material further comprises a first surface at a first end that is proximal to a pin and a second surface at a second end opposite the first end, and
- the pin having a self-tapping external thread, the pin being disposed at the first surface of the dental prosthesis forming block,
- wherein the first surface comprises a portion of the inner material and another portion of the outer material,
- wherein the inner material comprises said portion that is part of the first surface and remaining portions that are not part of the first surface,
- wherein the inner material is completely surrounded on the remaining portions by the outer material such that all outer surfaces of the cuboid shaped material external to the first surface are part of the outer material, and wherein the inner material has a lower Vickers hardness relative to the outer material.
Dependencies are inferred from the claim text.