Leucite is added to porcelain fused to metal crowns to
decrease the fusing temperature
increase strength to the porcelain
decrease the thermal expansion coefficient of porcelain
increase the translucency
1 explanations
Rk96
Lucite INCREASES thermal expansion to match Porcelain's expansion to that of the metal. Hence it helps INCREASE the strength, by reducing the stress between porcelain and metal
Rk96