Implant for attachment of dental prostheses
First Claim
1. A dental implant for anchoring a dental prosthesis to a jaw-bone of a patient in need of such prosthesis, said dental implant comprising an outwardly threaded cylindrical screw member for attachment and osseointegration in a cylindrical bore in said jaw bone, said screw member having an axial blind hole having a first conical portion tapering substantially from one end of said screw member through a portion of the length of said screw member, and continuing into an inwardly threaded cylindrical portion, said hole being adapted to receive and substantially embrace during a first osseointegration stage a cover screw having complementary conical and outwardly threaded cylindrical portions;
- said dental implant further comprising a prosthesis-supporting pillar adapted to be received and firmly attached in said hole, said pillar having a first conical portion and an outwarly threaded cylindrical portion complementary to the corresponding portions of the hole, and a second conical portion tapering to the opposite end of said pillar;
the dental implant further comprising a conical tubular member adapted to fit over said second conical portion and to fit into a complementary hole in a dental prosthesis.
2 Assignments
0 Petitions
Accused Products
Abstract
Implant intended to facilitate attachment of dental prostheses against a jaw-bone (2), including an externally threaded screw-shaped member (1), intended to be attached against a threaded hole taken up in the jaw-bone (2). In difference to previously known types of implants, the screw-shaped member (1) includes a blind hole directed from the jaw-bone (2), the first portion of which is a conically tapering portion (4), which is transformed into an internally threaded hole (3). Since the conical portion (4) adjacent to the end surface of the screw-shaped member (1) preferably is arranged with a diameter smaller than the outside diameter of the end portion, and since a cover screw with a conical head which is substantially enclosed by the conical portion (4) is utilized during the osseointegration process, the jaw-bone (2) can be permitted to enclose and encapsulate this end portion of the screw-shaped member (1) during the osseointegration process. A pillar (6) can be attached against the screw-shaped member (1), at an opposed end portion supporting a conical tubular member (7), arranged to facilitate a resilient movement in relation to the pillar (6), whereby a dental prosthesis can be attached having a restricted movement in relation to the jaw-bone (2).
121 Citations
10 Claims
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1. A dental implant for anchoring a dental prosthesis to a jaw-bone of a patient in need of such prosthesis, said dental implant comprising an outwardly threaded cylindrical screw member for attachment and osseointegration in a cylindrical bore in said jaw bone, said screw member having an axial blind hole having a first conical portion tapering substantially from one end of said screw member through a portion of the length of said screw member, and continuing into an inwardly threaded cylindrical portion, said hole being adapted to receive and substantially embrace during a first osseointegration stage a cover screw having complementary conical and outwardly threaded cylindrical portions;
- said dental implant further comprising a prosthesis-supporting pillar adapted to be received and firmly attached in said hole, said pillar having a first conical portion and an outwarly threaded cylindrical portion complementary to the corresponding portions of the hole, and a second conical portion tapering to the opposite end of said pillar;
the dental implant further comprising a conical tubular member adapted to fit over said second conical portion and to fit into a complementary hole in a dental prosthesis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- said dental implant further comprising a prosthesis-supporting pillar adapted to be received and firmly attached in said hole, said pillar having a first conical portion and an outwarly threaded cylindrical portion complementary to the corresponding portions of the hole, and a second conical portion tapering to the opposite end of said pillar;
Specification