Spacer for dental implants
AssigneeNobelpharma AB
InventorIzidor Brajnovic
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Abstract
A spacer for dental implants of a bio-compatible material includes an inner sleeve-shaped spacer element of titanium which is part of a screw connection between an anchorage element implanted in the maxillary beneath the gingiva, and a dental prosthesis construction whose joint surface is located above the gingiva and which is disposed to absorb the loading of the screw connection. The spacer includes an outer spacer sleeve of porcelain or ceramics which wholly or partly encloses the inner sleeve-shaped spacer element. The ceramic or porcelain sleeve may, by grinding and coating with porcelain of different colors, be caused to visually approximate a dental cervix and gingiva and, thereby, not contrast with the natural dental cervix color and gingival color.
Claims6
A spacer for dental implants constituting a connection element in a removable screw connection between an anchorage element implanted in the maxillary beneath the gingiva, and a dental prosthesis construction whose joint surface is disposed above the gingiva, said spacer comprising:
- a tubular spacer member made of a bio-compatible material such as titanium for absorbing the loadings of the screw connection;
- said tubular spacer element having a lower, substantially conically tapered portion for gingival penetration and an upper cylindrical portion projecting above the gingival edge and extending from said conically tapered portion up to the joint surface of the prosthesis construction;
- the outer diameter of the lower end part of said conically tapered portion substantially corresponding to the outer diameter of the upper portion of the anchorage element;
- a covering sleeve of a tooth-like material provided substantially around said cylindrical portion of the spacer element;
- and
- wherein said covering sleeve is not subjected to any loadings of the screw connection.
Dependencies are inferred from the claim text.