Dentistry – Prosthodontics – Holding or positioning denture in mouth
Patent
1994-08-09
1996-06-18
O'Connor, Cary E.
Dentistry
Prosthodontics
Holding or positioning denture in mouth
433173, A61C 800
Patent
active
055271839
ABSTRACT:
An endosseous implant body for affixing an orthopedic prosthesis into bone is provided. The implant body generally has at least four segments disposed proximate to a coronal end of the implant body. Each segment consists of a frustro-conical compression moiety and a frustro-conical tension moiety. The angles of incidence and the surface areas of the compression moieties are chosen so that, when the body is implanted into bone and a lateral force is applied to the coronal end of the body, that portion of the lateral force which is exerted by the compression moiety of each segment against the surrounding bone is greater than that portion of the lateral force which is exerted by the compression moiety of an adjacent segment disposed more proximate to the coronal end. Likewise, the angles of incidence and the surface areas of the tension moieties are chosen so that, when the body is implanted into bone and a lateral force is applied to the coronal end of the body, that portion of the lateral force which is exerted by the tension moiety of each segment against the surrounding bone is less than that portion of the lateral force which is exerted by the tension moiety of an adjacent segment disposed more proximate to the coronal end. The implant body of the invention has been found to produce a stable implant sight for orthopedic prostheses, especially dental prostheses. The design of the implant body results in a much more even distribution of occlusal forces to the prosthesis, thereby minimizing degradation of the implant sight over time. Additionally, the invention employs a new prosthetic connection in which one or both components (the body and prosthesis attachment structure) contain a Mores taper which locks the attachment structure to the body of the implant when properly attached. The assembly may also be designated with multiple orientations or only one orientation circumferentially.
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Collaborative Enterprises, Inc.
Klein David I.
O'Connor Cary E.
Rosenberg Morton J.
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