The bar-shaped zirconia specimens have been cut to incorporate all the levels from translucent to dentin In Multilayered Prime and Multilayered HTML groups. All specimens were totally sintered immediately after chopping from multilayered zirconia discs and subjected to three-point flexural toughness take a look at using the common screening machine. https://www.directivepublications.org/journal-of-dentistry-and-oral-research/