Dentistry – Method or material for testing – treating – restoring – or... – Anchor pin
Patent
1988-05-09
1990-04-17
Mancene, Gene
Dentistry
Method or material for testing, treating, restoring, or...
Anchor pin
A61K 504
Patent
active
049176064
ABSTRACT:
A self-threading dental anchor for insertion into a blind channel extending from an excavated surface of a tooth, the channel having a tapered seat portion of predetermined degrees, the dental anchor including an upper retention section to provide retention of a superstructure formed on the tooth, and a lower anchoring section connected thereto for engagement in the tooth channel to threadingly anchor the dental anchor to the tooth, the anchoring section having a helical buttress-type thread thereon. The buttress-type thread has a substantially planar lower surface facing towards a distal insertion end of the anchoring section, and an angled upper surface tapering inwardly towards the upper retention section to provide a crest therebetween, the crest having a knife-like cutting edge. The distal insertion end of the anchoring section is tapered to provide a slope thereon equal to the predetermined degrees of the tapered seat portion of the tooth channel to provide a mating angled configuration therebetween. Preferably, a depth-limiting stop member is disposed between the retention section and the anchoring section. The retention section can have a variety of different configurations, being threaded or unthreaded, for coupling with or within a cooperating driving tool.
REFERENCES:
patent: 2655724 (1953-10-01), Brooks
patent: 4053982 (1977-10-01), Weissman
patent: 4187611 (1980-02-01), Chan
patent: 4431416 (1984-02-01), Niznick
patent: 4490116 (1984-12-01), Deutsch
Ipco Corporation
Mancene Gene
LandOfFree
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