DENTAL IMPLANT ANCHOR CARRYING PLURAL ANCHORING MEANS

DENTAL IMPLANT ANCHOR CARRYING PLURAL ANCHORING MEANS
Canadian intellectual Property Patent Database
CA Patent Number: CA 1322481
Publication Date: Sep. 28, 1993
Inventors (Country): NIZNICK, GERALD A. (United States)
Owners (Country): CORE-VENT CORPORATION (United States)
Applicants (Country):
Agent: BORDEN LADNER GERVAIS LLP
Issued: Sep. 28, 1993
Filed: Dec. 16, 1987
Open to Public Inspection:
Canadian Class (CPC): 83/25
International Class (IPC): A61C 8/00
A61C 3/02
Patent Cooperation Treaty (PCT): No
Abstract:
A dental implant anchor includes a body portion having a first external wall portion carrying one or more circumferential projections separated by circumferential grooves and, below, a second external wall portion carrying threads. The implant can include a head portion with a smooth external wall; a through-hole and an apical hole passing through the bottom of the implant; and internal structure for engaging a tool for inserting the implant in a passage formed in bone tissue. This internal structure can be in a top portion, or in an internal passage in the body portion of the implant. The method for forming a passage in bone tissue to receive the implant includes forming a passage having a base with a diameter suited to self-tapping of the threaded part of the implant, and, above the base, a larger-diameter section to engage frictionally the circumferential projections.