Implant fixture for tooth prosthesis
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 29, 1991
Grant Date -
N/A
app pub date -
May 19, 1989
filing date -
May 20, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A fixture intended for implanting and anchoring in bone tissue, particularly in bone tissue of the jaw, to support a prosthesis such as the crown of a tooth. The fixture has at least a surface layer of material compatible with the tissue, such as titanium. The fixture comprises a lower shaft portion with external threading and an upper, smooth, neck portion. The lower portion is arranged to be screwed into a hole drilled in the bone tissue. The diameter of the hole is substantially in agreement with the core diameter of the shaft portion. The diameter of the neck portion lies within the interval between the outer diameter of the thread on the shaft portion and the core diameter of the shaft portion. The neck portion has an axial length exceeding the settlement in bone level which normally occurs upon use of the fixture.
First Claim
Family
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Cited Art Landscape
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