An evaluation of the accuracy of non-precious metal castings using wax and plastic copings
Date
1978
DOI
Authors
Daftary, Feridoun
Version
OA Version
Citation
Abstract
Success in prosthetic dentistry is to a great extent based on the ability to produce accurate castings. Well fitting crowns will rejoice a long clinical survival when a health oral environment is being maintained.
Since the 1940's the technical phase of producing a casting has undergone a tremendous development. This ranges from hand casting to modern, almost fully automatic casting machines. The objective has always been the same regardless the sophistication of the equipment; namely: an accurate well fitting casting.
Not only equipment but improved casting waxes, investment etc. contributed to better results.
With the introduction of non-precious metals, modified techniques had to be developed. The questions concerning these non precious metals revolve around the fact as to whether they behave as accurately and easily as gold.
The objective of this study was to determine the castibility of various non-precious metals compared to gold when a conventional wax coping technique was utilized and the feasibility of moulding plastic copings on a die by means of a vacu-press machine.
Description
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Thesis (MSD) --Boston University School of Graduate Dentistry, 1978 (Department of Prosthodontics).
Includes bibliography: leaves 100-103.
Thesis (MSD) --Boston University School of Graduate Dentistry, 1978 (Department of Prosthodontics).
Includes bibliography: leaves 100-103.
License
This work is protected by copyright. Downloading is restricted to the BU community. If you are the author of this work and would like to make it publicly available, please contact open-help@bu.edu.