Anchoring member

Details Anchoring member Anchoring member

1992-08-27

1993-12-14

Mancene, Gene

Dentistry

Prosthodontics

Holding or positioning denture in mouth

433173, A61C 800

Patent

active

052696855

ABSTRACT:
A screw-shaped titanium anchoring member for permanent anchorage in bone tissue, specifically permanent anchorage of artificial teeth or tooth bridges in the jaw-bone, comprises at least one cavity located at the forward tip of the screw, the edges of the at least one cavity on the outer threaded cylindrical surface forming cutting tooth with cutting edge to provide self-tapping when the anchoring member is screwed into a bored hole in the bone tissue and the total volume of the at least one cavity being adapted to contain the scraped-off bone tissue material. The anchoring member on the outer cylindrical surface of the cutting tooth, a short distance behind its cutting edge, is provided with a clearance surface defined on the outer surface of the anchoring member, which when seen in a cross-section through the cutting part of the anchoring member, is slightly bevelled a short distance behind the threaded cutting edge.

REFERENCES:
patent: 4407620 (1983-10-01), Shinjo
patent: 4468200 (1984-08-01), Munch
patent: 4713004 (1987-12-01), Linkow et al.
patent: 4730969 (1988-03-01), Dohi
patent: 4781506 (1988-11-01), Roberts et al.
patent: 5064425 (1991-11-01), Branemark et al.

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