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:
Sep. 14, 1982
Filed:
Sep. 20, 1979
Bernard Weissman, New York, NY (US);
Ipco Hospital Supply Corporation, White Plains, NY (US);
Abstract
A dental anchor is disclosed comprising an elongated body member for insertion into a channel in a tooth in order to anchor a superstructure to the tooth. The body member has at least one section with a substantially square cross-sectional configuration. The at least one section is provided with self tapping threads for threading into the channel. The threads have a root diameter approximately equal to the width of the square configuration, and a crest diameter less than the diagonal dimension of the square configuration. Preferably, the body member includes two similar sections joined together by a reduced thickness portion so that one section can be bent relative to the outer section when seated in the channel to provide an anchoring portion for the superstructure. Two dental anchors may be joined together by a reduced thickness frangible member, where the thickness of the reduced thickness portion of each dental anchor has a thickness greater than any thickness of the frangible member. Accordingly, the longitudinal side surfaces of the dental anchor are spaced from the walls of the channel when the anchor is seated in the channel to thereby relieve the stress on the tooth when threading the anchor into the channel. Additionally, it provides spaces therebetween, so that if cement is used, it can be disposed in these spaces.