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Zirconia Nanoparticles as Reinforcing Agents for Contemporary Dental Luting Cements: Physicochemical Properties and Shear Bond Strength to Monolithic Zirconia

Nanofillers in resin materials can improve their mechanical and physicochemical properties. The present work investigated the effects of zirconia nanoparticles (NPs) as fillers in commercial dental luting cements. Two dual-cured self-adhesive composites and one resin modified glass ionomer (RMGI) lu...

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Autores principales: Beketova, Anastasia, Tzanakakis, Emmanouil-Georgios C., Vouvoudi, Evangelia, Anastasiadis, Konstantinos, Rigos, Athanasios E., Pandoleon, Panagiotis, Bikiaris, Dimitrios, Tzoutzas, Ioannis G., Kontonasaki, Eleana
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9916921/
https://www.ncbi.nlm.nih.gov/pubmed/36768390
http://dx.doi.org/10.3390/ijms24032067
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author Beketova, Anastasia
Tzanakakis, Emmanouil-Georgios C.
Vouvoudi, Evangelia
Anastasiadis, Konstantinos
Rigos, Athanasios E.
Pandoleon, Panagiotis
Bikiaris, Dimitrios
Tzoutzas, Ioannis G.
Kontonasaki, Eleana
author_facet Beketova, Anastasia
Tzanakakis, Emmanouil-Georgios C.
Vouvoudi, Evangelia
Anastasiadis, Konstantinos
Rigos, Athanasios E.
Pandoleon, Panagiotis
Bikiaris, Dimitrios
Tzoutzas, Ioannis G.
Kontonasaki, Eleana
author_sort Beketova, Anastasia
collection PubMed
description Nanofillers in resin materials can improve their mechanical and physicochemical properties. The present work investigated the effects of zirconia nanoparticles (NPs) as fillers in commercial dental luting cements. Two dual-cured self-adhesive composites and one resin modified glass ionomer (RMGI) luting cement were employed. Film thickness (FT), flexural strength (FS), water sorption (W(sp)), and shear bond strength (SBS) to monolithic zirconia were evaluated according to ISO 16506:2017 and ISO 9917-2:2017, whereas polymerization progress was evaluated with FTIR. Photopolymerization resulted in double the values of DC%. The addition of 1% wt NPs does not significantly influence polymerization, however, greater amounts do not promote crosslinking. The sorption behavior and the mechanical performance of the composites were not affected, while the film thickness increased in all luting agents, within the acceptable limits. Thermocycling (TC) resulted in a deteriorating effect on all composites. The addition of NPs significantly improved the mechanical properties of the RMGI cement only, without negatively affecting the other cements. Adhesive primer increased the initial SBS significantly, however after TC, its application was only beneficial for RMGI. The MDP containing luting cement showed higher SBS compared to the RMGI and 4-META luting agents. Future commercial adhesives containing zirconia nanoparticles could provide cements with improved mechanical properties.
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spelling pubmed-99169212023-02-11 Zirconia Nanoparticles as Reinforcing Agents for Contemporary Dental Luting Cements: Physicochemical Properties and Shear Bond Strength to Monolithic Zirconia Beketova, Anastasia Tzanakakis, Emmanouil-Georgios C. Vouvoudi, Evangelia Anastasiadis, Konstantinos Rigos, Athanasios E. Pandoleon, Panagiotis Bikiaris, Dimitrios Tzoutzas, Ioannis G. Kontonasaki, Eleana Int J Mol Sci Article Nanofillers in resin materials can improve their mechanical and physicochemical properties. The present work investigated the effects of zirconia nanoparticles (NPs) as fillers in commercial dental luting cements. Two dual-cured self-adhesive composites and one resin modified glass ionomer (RMGI) luting cement were employed. Film thickness (FT), flexural strength (FS), water sorption (W(sp)), and shear bond strength (SBS) to monolithic zirconia were evaluated according to ISO 16506:2017 and ISO 9917-2:2017, whereas polymerization progress was evaluated with FTIR. Photopolymerization resulted in double the values of DC%. The addition of 1% wt NPs does not significantly influence polymerization, however, greater amounts do not promote crosslinking. The sorption behavior and the mechanical performance of the composites were not affected, while the film thickness increased in all luting agents, within the acceptable limits. Thermocycling (TC) resulted in a deteriorating effect on all composites. The addition of NPs significantly improved the mechanical properties of the RMGI cement only, without negatively affecting the other cements. Adhesive primer increased the initial SBS significantly, however after TC, its application was only beneficial for RMGI. The MDP containing luting cement showed higher SBS compared to the RMGI and 4-META luting agents. Future commercial adhesives containing zirconia nanoparticles could provide cements with improved mechanical properties. MDPI 2023-01-20 /pmc/articles/PMC9916921/ /pubmed/36768390 http://dx.doi.org/10.3390/ijms24032067 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Beketova, Anastasia
Tzanakakis, Emmanouil-Georgios C.
Vouvoudi, Evangelia
Anastasiadis, Konstantinos
Rigos, Athanasios E.
Pandoleon, Panagiotis
Bikiaris, Dimitrios
Tzoutzas, Ioannis G.
Kontonasaki, Eleana
Zirconia Nanoparticles as Reinforcing Agents for Contemporary Dental Luting Cements: Physicochemical Properties and Shear Bond Strength to Monolithic Zirconia
title Zirconia Nanoparticles as Reinforcing Agents for Contemporary Dental Luting Cements: Physicochemical Properties and Shear Bond Strength to Monolithic Zirconia
title_full Zirconia Nanoparticles as Reinforcing Agents for Contemporary Dental Luting Cements: Physicochemical Properties and Shear Bond Strength to Monolithic Zirconia
title_fullStr Zirconia Nanoparticles as Reinforcing Agents for Contemporary Dental Luting Cements: Physicochemical Properties and Shear Bond Strength to Monolithic Zirconia
title_full_unstemmed Zirconia Nanoparticles as Reinforcing Agents for Contemporary Dental Luting Cements: Physicochemical Properties and Shear Bond Strength to Monolithic Zirconia
title_short Zirconia Nanoparticles as Reinforcing Agents for Contemporary Dental Luting Cements: Physicochemical Properties and Shear Bond Strength to Monolithic Zirconia
title_sort zirconia nanoparticles as reinforcing agents for contemporary dental luting cements: physicochemical properties and shear bond strength to monolithic zirconia
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9916921/
https://www.ncbi.nlm.nih.gov/pubmed/36768390
http://dx.doi.org/10.3390/ijms24032067
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