Dentistry – Prosthodontics – Holding or positioning denture in mouth
Patent
1993-04-16
1996-07-23
Lucchesi, Nicholas D.
Dentistry
Prosthodontics
Holding or positioning denture in mouth
433173, 433214, A61C 1312, A61C 13225, A61C 800, A61C 900
Patent
active
055384269
ABSTRACT:
An arrangement usable as a core for a dental prosthesis or as a transfer jig in forming a model of an aveolar arch with one or more implants, comprising a nut which is for fitting in a hexagonal portion of a socket in the implant, a ring for fitting over the nut and seating around the mouth of the socket, and a post for screwing through the nut and the ring to the implant. The ring also has a hexagonal bore portion which receives part of the nut. Thus, the ring is located spatially and angularly relative to the implant without being socketed therein. When a dental impression has been formed with a plurality of the rings embedded therein, or when a sub-frame for a bridge has been made up on two or more such rings on a model of the aveolar arch made from that impression, it is removed by unscrewing the post and withdrawing it and the nut. Thus, the impression or bridge sub-frame is easily removed despite the probability that the axes of the implants in the aveolar arch are not parallel.
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"Prosthodontic Procedures", by George A. Zarb and Tomas Jansson in "Tissue-Integrated Prostheses Osseointegration in Clinical Dentistry" published by Quintessence Publishing Company 1985.
Asher George B.
Harding Stewart P.
Asher George Brian
Harding Stewart Peter
Lucchesi Nicholas D.
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