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Retention strength of monolithic zirconia crowns cemented with different primer-cement systems

BACKGROUND: The purpose of this in vitro study was to assess the influence of different cement systems with different ceramic primers on the retention strength of zirconia crowns. METHODS: Thirty extracted molars were prepared with flat occlusal surfaces, 20 degrees taper, and 3 mm axial wall height...

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Autores principales: Shokry, Mohamed, Al-Zordk, Walid, Ghazy, Mohamed
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9118569/
https://www.ncbi.nlm.nih.gov/pubmed/35590310
http://dx.doi.org/10.1186/s12903-022-02223-0
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author Shokry, Mohamed
Al-Zordk, Walid
Ghazy, Mohamed
author_facet Shokry, Mohamed
Al-Zordk, Walid
Ghazy, Mohamed
author_sort Shokry, Mohamed
collection PubMed
description BACKGROUND: The purpose of this in vitro study was to assess the influence of different cement systems with different ceramic primers on the retention strength of zirconia crowns. METHODS: Thirty extracted molars were prepared with flat occlusal surfaces, 20 degrees taper, and 3 mm axial wall height. A zirconia crown with an occlusal bar was fabricated for each tooth. All specimens were divided (n = 10) into; Group M: Multilink Speed/Monobond N, Group P: Panavia V5/Clearfil Ceramic Primer Plus, Group D: Duo-Link universal/Z-Prime Plus. The intaglio surfaces of crowns were air-abraded using 50 µm alumina at 2.5 bar for 10 s. Then each crown was cemented onto its corresponding tooth. All specimens were thermocycled for 10,000 cycles between 5 and 55 °C. Each crown was subjected to gradually increasing vertical load along the path of insertion through hooks engaging the occlusal bar using a universal testing machine until failure. The force at dislodgment was recorded and retention strength was calculated for each specimen. The failure modes were recorded for each specimen. The data were statistically analyzed using one way ANOVA test followed by Tukey HSD test (α = .05). RESULTS: Group D showed lowest strength (1.42 ± 0.23 MPa) and differed significantly (P < .001) from Group M (2.71 ± 0.45 MPa) and Group P (2.47 ± 0.41 MPa). There was no significant difference (P = .34) between Group M and Group P. The failure modes for Groups M and Group P were mainly cohesive, while Group D showed adhesive failure. CONCLUSIONS: The retention strength of zirconia crowns was improved with Multilink Speed and Panavia V5 cement systems, while the use of the Duo-Link Universal cement system only showed half of those retention strength values.
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spelling pubmed-91185692022-05-20 Retention strength of monolithic zirconia crowns cemented with different primer-cement systems Shokry, Mohamed Al-Zordk, Walid Ghazy, Mohamed BMC Oral Health Research BACKGROUND: The purpose of this in vitro study was to assess the influence of different cement systems with different ceramic primers on the retention strength of zirconia crowns. METHODS: Thirty extracted molars were prepared with flat occlusal surfaces, 20 degrees taper, and 3 mm axial wall height. A zirconia crown with an occlusal bar was fabricated for each tooth. All specimens were divided (n = 10) into; Group M: Multilink Speed/Monobond N, Group P: Panavia V5/Clearfil Ceramic Primer Plus, Group D: Duo-Link universal/Z-Prime Plus. The intaglio surfaces of crowns were air-abraded using 50 µm alumina at 2.5 bar for 10 s. Then each crown was cemented onto its corresponding tooth. All specimens were thermocycled for 10,000 cycles between 5 and 55 °C. Each crown was subjected to gradually increasing vertical load along the path of insertion through hooks engaging the occlusal bar using a universal testing machine until failure. The force at dislodgment was recorded and retention strength was calculated for each specimen. The failure modes were recorded for each specimen. The data were statistically analyzed using one way ANOVA test followed by Tukey HSD test (α = .05). RESULTS: Group D showed lowest strength (1.42 ± 0.23 MPa) and differed significantly (P < .001) from Group M (2.71 ± 0.45 MPa) and Group P (2.47 ± 0.41 MPa). There was no significant difference (P = .34) between Group M and Group P. The failure modes for Groups M and Group P were mainly cohesive, while Group D showed adhesive failure. CONCLUSIONS: The retention strength of zirconia crowns was improved with Multilink Speed and Panavia V5 cement systems, while the use of the Duo-Link Universal cement system only showed half of those retention strength values. BioMed Central 2022-05-19 /pmc/articles/PMC9118569/ /pubmed/35590310 http://dx.doi.org/10.1186/s12903-022-02223-0 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/ (https://creativecommons.org/publicdomain/zero/1.0/) ) applies to the data made available in this article, unless otherwise stated in a credit line to the data.
spellingShingle Research
Shokry, Mohamed
Al-Zordk, Walid
Ghazy, Mohamed
Retention strength of monolithic zirconia crowns cemented with different primer-cement systems
title Retention strength of monolithic zirconia crowns cemented with different primer-cement systems
title_full Retention strength of monolithic zirconia crowns cemented with different primer-cement systems
title_fullStr Retention strength of monolithic zirconia crowns cemented with different primer-cement systems
title_full_unstemmed Retention strength of monolithic zirconia crowns cemented with different primer-cement systems
title_short Retention strength of monolithic zirconia crowns cemented with different primer-cement systems
title_sort retention strength of monolithic zirconia crowns cemented with different primer-cement systems
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9118569/
https://www.ncbi.nlm.nih.gov/pubmed/35590310
http://dx.doi.org/10.1186/s12903-022-02223-0
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