Fit of Porcelain Fused-to-metal Crown and Bridge Castings
- 1 December 1979
- journal article
- other
- Published by SAGE Publications in Journal of Dental Research
- Vol. 58 (12), 2360-2368
- https://doi.org/10.1177/00220345790580120501
Abstract
The dimensional accuracy of porcelain fused to metal crown and bridge castings was determined on truncated cone-shaped steel dies. Ni-Cr castings produced in manufacturers' laboratories were consistently undersize, while precious metal castings were consistently oversize. Ni-Cr castings, produced in NBS laboratories using a modified investing technique, were routinely oversize.Keywords
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