Flexural Strength of Translucent Zirconia Materials Produced with Different Multilayer Technologies: An In Vitro Study

Objective. To evaluate the flexural strength of two translucent multilayered zirconia materials produced with different multilayer technologies. Methodology. Eighty bar-shaped zirconia specimens were prepared from two different multilayered zirconia materials (IPS e.max® ZirCAD Prime and KATANA™ Mul...

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Main Author: Fahad Bakitian
Format: Article
Language:English
Published: Wiley 2024-01-01
Series:International Journal of Dentistry
Online Access:http://dx.doi.org/10.1155/2024/8410101
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author Fahad Bakitian
author_facet Fahad Bakitian
author_sort Fahad Bakitian
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description Objective. To evaluate the flexural strength of two translucent multilayered zirconia materials produced with different multilayer technologies. Methodology. Eighty bar-shaped zirconia specimens were prepared from two different multilayered zirconia materials (IPS e.max® ZirCAD Prime and KATANA™ Multilayered Zirconia HTML) and divided into eight groups (n = 10) based on the materials used and the individual layers of the disc for each material: Dentin Prime, Transition Prime, Translucent Prime, Multilayered Prime, Dentin HTML, Transition HTML, Translucent HTML, and Multilayered HTML. The bar-shaped zirconia specimens were cut to include all the layers from translucent to dentin In Multilayered Prime and Multilayered HTML groups. All specimens were fully sintered after cutting from multilayered zirconia discs and subjected to three-point flexural strength test using the universal testing machine. Results. The specimens made of HTML zirconia material showed significantly (P<0.001) higher flexural strength than those made of IPS e.max® ZirCAD Prime material, with no significant difference (P>0.05) compared to the specimens in the Dentin Prime group. The Dentin Prime specimens had the highest flexural strength (743 ± 116 MPa) compared to those in the Translucent Prime (514 ± 120 MPa), Transition Prime (575 ± 102 MPa), and Multilayered Prime (531 ± 132 MPa) groups. The flexural strength of the specimens from the individual layers of HTML zirconia material was not significantly different (P>0.05) among the Dentin HTML (763 ± 56 MPa), Translucent HTML (791 ± 106 MPa), Transition HTML (816 ± 85 MPa), and Multilayered HTML (793 ± 102 MPa) groups. Conclusion. Multilayered zirconia materials produced with different yttria contents by layer have lower flexural strength than those produced with gradient shade technology and the same yttria content for each layer. Therefore, various factors such as the type of prostheses, nesting strategies of prostheses within the zirconia disc, and the desired aesthetical requirements should be considered when selecting the multilayered zirconia materials.
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spelling doaj-art-c9ee248c79e848c19dae731f60ebd07c2025-08-20T02:19:42ZengWileyInternational Journal of Dentistry1687-87362024-01-01202410.1155/2024/8410101Flexural Strength of Translucent Zirconia Materials Produced with Different Multilayer Technologies: An In Vitro StudyFahad Bakitian0Department of Restorative DentistryObjective. To evaluate the flexural strength of two translucent multilayered zirconia materials produced with different multilayer technologies. Methodology. Eighty bar-shaped zirconia specimens were prepared from two different multilayered zirconia materials (IPS e.max® ZirCAD Prime and KATANA™ Multilayered Zirconia HTML) and divided into eight groups (n = 10) based on the materials used and the individual layers of the disc for each material: Dentin Prime, Transition Prime, Translucent Prime, Multilayered Prime, Dentin HTML, Transition HTML, Translucent HTML, and Multilayered HTML. The bar-shaped zirconia specimens were cut to include all the layers from translucent to dentin In Multilayered Prime and Multilayered HTML groups. All specimens were fully sintered after cutting from multilayered zirconia discs and subjected to three-point flexural strength test using the universal testing machine. Results. The specimens made of HTML zirconia material showed significantly (P<0.001) higher flexural strength than those made of IPS e.max® ZirCAD Prime material, with no significant difference (P>0.05) compared to the specimens in the Dentin Prime group. The Dentin Prime specimens had the highest flexural strength (743 ± 116 MPa) compared to those in the Translucent Prime (514 ± 120 MPa), Transition Prime (575 ± 102 MPa), and Multilayered Prime (531 ± 132 MPa) groups. The flexural strength of the specimens from the individual layers of HTML zirconia material was not significantly different (P>0.05) among the Dentin HTML (763 ± 56 MPa), Translucent HTML (791 ± 106 MPa), Transition HTML (816 ± 85 MPa), and Multilayered HTML (793 ± 102 MPa) groups. Conclusion. Multilayered zirconia materials produced with different yttria contents by layer have lower flexural strength than those produced with gradient shade technology and the same yttria content for each layer. Therefore, various factors such as the type of prostheses, nesting strategies of prostheses within the zirconia disc, and the desired aesthetical requirements should be considered when selecting the multilayered zirconia materials.http://dx.doi.org/10.1155/2024/8410101
spellingShingle Fahad Bakitian
Flexural Strength of Translucent Zirconia Materials Produced with Different Multilayer Technologies: An In Vitro Study
International Journal of Dentistry
title Flexural Strength of Translucent Zirconia Materials Produced with Different Multilayer Technologies: An In Vitro Study
title_full Flexural Strength of Translucent Zirconia Materials Produced with Different Multilayer Technologies: An In Vitro Study
title_fullStr Flexural Strength of Translucent Zirconia Materials Produced with Different Multilayer Technologies: An In Vitro Study
title_full_unstemmed Flexural Strength of Translucent Zirconia Materials Produced with Different Multilayer Technologies: An In Vitro Study
title_short Flexural Strength of Translucent Zirconia Materials Produced with Different Multilayer Technologies: An In Vitro Study
title_sort flexural strength of translucent zirconia materials produced with different multilayer technologies an in vitro study
url http://dx.doi.org/10.1155/2024/8410101
work_keys_str_mv AT fahadbakitian flexuralstrengthoftranslucentzirconiamaterialsproducedwithdifferentmultilayertechnologiesaninvitrostudy