The high average thermal expansion required for thermal compatibility of dental porcelains with their substrate alloys is supplied by the mineral leucite (K 2 O Al 2 O 3 4SiO 2 ). Since leucite is not an equilibrium phase at the composition of component No. 1 of the Weinstein et al. patent, phase changes in this leucitecontaining frit could be responsible for the observed thermally induced changes in dental porcelain expansion behavior. This study sought to explore such phase changes.
No takes yet. Share an insight, caveat, or question.
Mackert et al. (1986) studied this question.
Synapse has enriched 2 closely related papers on similar clinical questions. Consider them for comparative context: