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US 5,049,073 AGranted
Device for fastening a set of teeth to a jawbone of a patient
OwnerNikola Lauksinventor
Life of this patent
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Abstract
A device for retaining a tooth set such as a bridge in the mouth of a patient has an implant with an anchor end received in a drilled cavity in the jaw and provided with longitudinal flutes. On the crown anchor at the opposite end of this implant, a two-part crown can be provided. The primary crown part is connected to the crown carrier by a screw and has an external taper onto which the secondary crown part can be applied with adhesive friction. The secondary crown part is anchored in the artificial tooth set.
Claims37
A device for fastening a set of teeth on a human jaw, comprising:
- an elongated implant for a bore in a bone of a human jaw and having an implanted end received in said bore and an opposite end formed as a crown carrier, said implanted end having a rounded extremity lodged in said bone, said implanted end, at an extremity turned toward said crown carrier, being formed with a flange projecting radially outwardly, said flange having an underside turned toward said rounded extremity and conically converging in a direction thereof, said implant including an anchor portion adapted to be fitted into said bore and said crown carrier being spaced from said flange and resiliently connected with said implant, said crown carrier being formed from a substantially cylindrical body;
- a two-part crown mounted on said crown carrier and comprising:
- a primary crown part separable from and abutting said crown carrier,
- a secondary crown part fitting onto said primary crown part and securable to said set of teeth, and
- means for securing said primary crown part to said crown carrier, said securing means being a screw received in a bore of said crown carrier that extends centrally therealong, said screw traversing said crown carrier, said crown carrier being formed on a side turned toward said anchor portion with an annular recess surrounding said screw and extending partly into said crown carrier;
- and
- an annular rubber washer surrounding said screw positioned between a face of said anchor portion and a surface of said crown carrier turned toward said anchor portion and radially interior of said outwardly projecting flange and an implant spacer threaded into said anchor portion adjacent said flange, said implant spacer having a recess receiving said washer and said crown carrier.
4 more elements
Dependencies are inferred from the claim text.