Effects of coloring methods on the properties of dental zirconia

Abstract

The application of staining via immersion and preshading may produce good coloring of zirconia ceram⁃ ics, and the transparency of zirconia stained via immersion is better than preshaded. The color of zirconia changes under repeated firing, but the changes are in the clinically acceptable range. Repeated firing may affect the bending strength of zirconia but still satisfies the clinical needs. The shear bond strength between zirconia and resin cement may be in⁃ creased using staining via immersion or repeated firing.

Keywords

• Staining by immersion
• Preshaded
• Zirconia
• Flexural strength
• Adhesion properties
• Biocom⁃ patibility