The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 17, 1990
Filed:
May. 09, 1988
Alan N Miller, New City, NY (US);
IPCO Corporation, White Plains, NY (US);
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.