Fit of Porcelain Fused-to-metal Crown and Bridge Castings
1979; SAGE Publishing; Volume: 58; Issue: 12 Linguagem: Inglês
10.1177/00220345790580120501
ISSN1544-0591
AutoresGeorge T. Eden, Omar Franklin, J.M. Powell, Yoshihiro Ohta, George Dickson,
Tópico(s)Manufacturing Process and Optimization
ResumoThe 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.
Referência(s)