Effect of Fe2O3 Coloring Method on the Mechanical Property and Transparency Parameter of Dental 3Y-TZP / 医学研究杂志

ABSTRACT

Objective To determine the influence of Fe2O3 coloring method to the mechanical and transparency parameter of dental zirconia.Methods Presintered zirconia blocks were coverd with zirconia powder blended with different ratio of Fe2O3,then sintered to 1450℃.Mechanical property and transparency parameter were calculated.Results The L* value was in the range from 64.91 to 90.94.The a* value was in the range from 1.27 to 12.70.The b* value was in the range from 1.02 to 38.66.There was no significant difference (P ＞ 0.05) of the flexural strength and in each group with the increase of Fe2O3.Conclusion This method produced dental zirconia specimens with light yellow to amber brown colors with the increase of Fe2O3 and no significant influence of mechanical property and transparency.