Impression coping

Details Impression coping Impression coping

1996-01-30

1997-10-07

O'Connor, Cary E.

Dentistry

Prosthodontics

Preliminary casting, model, or trial denture

433173, A61C 1100

Patent

active

056740735

ABSTRACT:
An impression coping for transferring the inclination and position of a dental implant fixture or abutment to a working model has a base portion which provides for rotational locking to a fixture head or an abutment and an elongated upper part projecting from the base portion to provide for retention in a surrounding impression mold. The entire impression coping is made of an elastic material so that a clamp fitting is obtained between the base portion and the fixture head or abutment. The base portion comprises a downwardly projecting, unthreaded guide pin adapted for insertion into the internal bore in the fixture head or abutment during installation of the impression coping, thereby facilitating the centering and positioning of the coping during placement.

REFERENCES:
patent: 4708654 (1987-11-01), Branemark
patent: 4955811 (1990-09-01), Lazzara et al.
patent: 5125841 (1992-06-01), Carlsson et al.
patent: 5213502 (1993-05-01), Daftary
patent: 5334024 (1994-08-01), Niznick
patent: 5538426 (1996-07-01), Harding et al.
Knode, Rehabilitation With Implant-Supported Suprastructures At The Time Of The Abutment Surgery: A Case Report, The Cosmetic Dentistry Edition 1995, pp. 67-73.

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