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Table 1 Chemical composition of the Y-TZP dental ceramics expressed as weight percent (wt.%)

From: Effects of dynamic aging on the wear and fracture strength of monolithic zirconia restorations

Ceramic wt.%
Y2O3 HfO2 Al2O3 SiO2 Fe2O3 Na2O ZrO2
Bruxzir 4.1 4.0 0.34 < 0.01 < 0.01 < 0.01 Balance
Incoris TZI 4.5–6.0 < 5.0 < 0.05 < 0.05 < 0.05 < 0.05 Balance