Dental implant including plural anchoring means

Details Dental implant including plural anchoring means Dental implant including plural anchoring means

1989-08-11

1991-10-29

Mancene, Gene

Dentistry

Prosthodontics

Holding or positioning denture in mouth

A61C 800

Patent

active

050611810

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. In some forms, the anchor also includes one or more longitudinally-oriented grooves on its exterior wall. The grooves extend across, and through the circumferential projections. 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. A drill for forming such a passage in one step includes two such drilling portions that simultaneously form a two-diameter passage.

REFERENCES:
patent: 3499222 (1970-03-01), Linkow et al.
patent: 3919774 (1975-11-01), Fishman
patent: 4324550 (1982-04-01), Reuther et al.
patent: 4334865 (1982-06-01), Borle
patent: 4468200 (1984-08-01), Munch

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