Comparison of dimensional accuracy of denture bases produced by means of the conventional processing technique versus a dry heat, high pressure processing technique
Date
1980
DOI
Authors
Cheng, Ping-Kang
Version
OA Version
Citation
Abstract
The need for the dental profession and dental technology to have a rapid and reliable processing technique for acrylic dentures has been recognized for many years. Much research has been conducted to improve the resin systems and the techniques involved to process them. The conventional heat-cure resin materials are still in use by most laboratories. However, new techniques claiming a more stable end product and less time consuming have been introduced.
It is the purpose of this study to evaluate the dimensional accuracy of acrylic resin bases cured by means of a dry heat high pressure technique vs. the conventional water bath technique. For that purpose an aluminum model was custom made, containing four reference points. By means of a special flasking technique acrylic models could be processed identically utilizing the dry heat high pressure technique or the water bath technique.
Comparisons were made as to linear dimensional change, utilizing either technique. The data was tabulated and a statistical analysis performed.
The results of this study indicate that both techniques resulted in dimensional shrinkage, however, there did not exist a significant difference between either technique.
The dry heat high pressure technique appeared to be less time consuming compared to the water bath technique.
It can be concluded from this experiment that the equipment for dry heat high pressure processing is a valuable adjunct to a dental laboratory.
Description
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Thesis (M.Sc.D.)--Boston University, Henry M. Goldman School of Graduate Dentistry, 1980.
Bibliography: leaves 55-57.
Thesis (M.Sc.D.)--Boston University, Henry M. Goldman School of Graduate Dentistry, 1980.
Bibliography: leaves 55-57.
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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.