Comparative analysis of two base metal ceramic alloy soldered connectors
Date
1992
DOI
Authors
Lima Verde, Marcus Aurelio Rabelo
Version
OA Version
Citation
Abstract
Soldered connectors for two base metal ceramic alloys (Ni-Cr & Co-Cr) were compared using four different techniques:
1. Infrared preceramic soldering;
2. Gas-oxygen preceramic soldering;
3. Porcelain furnace postsoldering, with a -760 mm/hg vacuum;
4. Porcelain furnace postsoldering, without a vacuum.
A control group was also made using solid casting specimens for both alloys. No significant difference was noted between infrared and torch preceramic soldering for either of the two alloys; however, the joints postsoldered under vacuum were significantly superior to those post soldered without a vacuum(p[less than]0.0001). No significant differences among techniques# 1, 2, and 3 were observed, although the three groups were superior to technique# 4 for both alloys studied (p=0.05). The control group for both alloys was stronger than the soldered groups (p[less than]0.0001), and within the control group the Ni-Cr samples were significantly stronger than the samples formed using Co-Cr alloys.
Description
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Thesis (M.Sc.D.)--Boston University, Henry M. Goldman School of Graduate Dentistry, 1992 (Prosthodontics).
Includes bibliography (leaves 70-80).
Thesis (M.Sc.D.)--Boston University, Henry M. Goldman School of Graduate Dentistry, 1992 (Prosthodontics).
Includes bibliography (leaves 70-80).
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.