Screw implant for a jawbone

Details Screw implant for a jawbone Screw implant for a jawbone

1989-11-15

1991-12-24

Wilson, John J.

Dentistry

Prosthodontics

Holding or positioning denture in mouth

A61C 800

Patent

active

050747908

ABSTRACT:
A screw implant for a jawbone has a conical threaded implant body with an implant neck and a conical implant post to accept a replacement tooth or a substructure. The thread of the implant body is a compression thread with concave thread turns.
The implant neck preferably defines a bending zone wherein the ratio of the diameter D.sub.B to the length L.sub.B of the bending zone is in the range of 1:1.5 to 1:3. The bending angle is up to 30 degrees and the number of bendings of the bending zone is 3 to 4, when the implant post is bent back and forth. The implant neck has broadening transition sections.

REFERENCES:
patent: 3386169 (1968-06-01), Scialom
patent: 3590485 (1971-07-01), Chercheve et al.
patent: 4406623 (1983-09-01), Grafelmann et al.
patent: 4424037 (1984-01-01), Ogino et al.
patent: 4468200 (1984-08-01), Muench
patent: 4645453 (1987-02-01), Niznick
patent: 4758160 (1988-07-01), Ismail
patent: 4758161 (1988-07-01), Niznick
patent: 4767328 (1988-08-01), Branemark
Tetsch, Peter: Enossale Implantationen in der Zahnheilkunde, Munich/Vienna: Carl Hanser-Verlag (1984), pp. 117-120.

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