J Prosthet Dent 2021 Mar 19;125(3):518-526. Epub 2020 Mar 19.
Scientific Head of Dental Material Unit, Department of Prosthetic Dentistry, Dental School, Ludwig-Maximilians-University Munich, Germany. Electronic address:
Statement Of Problem: Yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) materials of different formulations (3Y-TZP, 4Y-TZP, and 5Y-TZP) can be colored by using color liquids. However, practically and clinically relevant factors such as modifications of sintering protocols and hydrothermal aging might affect the extent of light transmittance and flexural strength of zirconia materials of different formulations; studies on these outcomes, however, are lacking.
Purpose: The purpose of this in vitro study was to test the impact of hydrothermal aging on the light transmittance and flexural strength of colored zirconia materials compared with a lithium-disilicate (LiSi) ceramic. Read More