Title:
DENTAL IMPLANT SYSTEM WITH SCREW OF MATCHING SHAPE
Document Type and Number:
WIPO Patent Application WO/2014/131646
Kind Code:
A3
Abstract:
The invention relates to a dental implant system having at least one implant for securing in a jaw bone, a prosthesis on which at least one artificial tooth can be mounted and secured, and at least one screw for securing the prosthesis releasably on the at least one implant, wherein the at least one screw has a thread and an engagement part for turning the screw, the engagement part being arranged at the end of the screw remote from the thread, and the screw having a bearing surface oriented towards the thread, wherein, when the dental implant system is fully assembled, the bearing surface of the at least one screw presses the prosthesis onto the at least one implant, and the prosthesis, the at least one implant and the at least one screw lie with their surfaces flush against one another. The invention also relates to a screw for such a dental implant system, in which the screw is rotationally symmetrical except for the engagement part and the thread, wherein the diameter of the screw increases from the thread to the opposite end, or the diameter of the screw increases from the thread to the opposite end at least in the area of the bearing surface and remains the same in places, such that the screw, except for the engagement part and the thread, is preferably cylindrical with respect to the screw axis or tapers conically in the direction of its thread, wherein the implant has a cylindrical area, or an area opening conically in the direction of the connecting face to the prosthesis, which area separates an internal thread of the implant from the connecting face to the prosthesis, wherein the inner surface of the implant corresponds to the outer surface of the screw, such that both adjoin with their surfaces flush when the screw is screwed fully into the implant. The invention further relates to a method for producing a prosthesis for a dental implant system.
Inventors:
BINDER ROLAND (DE)
Application Number:
PCT/EP2014/053037
Publication Date:
January 08, 2015
Filing Date:
February 17, 2014
Export Citation:
Assignee:
HERAEUS KULZER GMBH (DE)
International Classes:
A61C8/00; A61C9/00; A61C13/00
Domestic Patent References:
| WO2004038326A2 | 2004-05-06 | |||
| WO2007110376A1 | 2007-10-04 |
Foreign References:
| US7090495B1 | 2006-08-15 | |||
| US5782637A | 1998-07-21 | |||
| US5007833A | 1991-04-16 |
Attorney, Agent or Firm:
SCHULTHEISS & STERZEL PATENTANWÄLTE (Berner Straße 52, Frankfurt, DE)
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