Microhardness and wear behavior of nanodiamond-reinforced nanocomposites for dental applications

In polymer-based dental composites, wear is a three-body wear system mainly abrasive, because of the food particles and wear products suspended in the oral cavity, which are transferred to the microcavities of the surface of the replacements. Due to this fact, the incorporation of nanodiamond as rei...

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Autores: Moriche, Rocío, Artigas-Arnaudas, Joaquín, Chetwani, Bhanu, Sánchez, María, Campo, Mónica, Prolongo, Margarita G., Rams, Joaquín, Prolongo, Silvia G., Ureña, Alejandro
Tipo de recurso: artículo
Fecha de publicación:2024
País:España
Institución:Universidad Rey Juan Carlos
Repositorio:BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlos
OAI Identifier:oai:burjcdigital.urjc.es:10115/40356
Acceso en línea:https://hdl.handle.net/10115/40356
Access Level:acceso abierto
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spelling Microhardness and wear behavior of nanodiamond-reinforced nanocomposites for dental applicationsMoriche, RocíoArtigas-Arnaudas, JoaquínChetwani, BhanuSánchez, MaríaCampo, MónicaProlongo, Margarita G.Rams, JoaquínProlongo, Silvia G.Ureña, AlejandroIn polymer-based dental composites, wear is a three-body wear system mainly abrasive, because of the food particles and wear products suspended in the oral cavity, which are transferred to the microcavities of the surface of the replacements. Due to this fact, the incorporation of nanodiamond as reinforcement in these polymer–matrix composites, which promotes the creation of a solid lubricant tribofilm surface could be advantageous. With the reinforcement of nanodiamonds, BisGMA/TEGDMA-based composites increase their microhardness by 95%–420%. A maximum hardness exceeding 65 HV is achieved with a reinforcement of 3.2 wt%. The specific wear rate of neat BisGMA/TEGDMA is near 10−4 mm3/Nm and the Archard's coefficient is 2.6 × 105. The incorporation of a content of 1.6 wt% ND is enough to cause a diminution of ~78% in the friction coefficient and a reduction of the specific wear rate and Archard's coefficient of ~50%. Nevertheless, the addition of relatively high contents reduces the effectiveness of photoinitiation and photocuring, which is related to the scattering and absorption of light radiation by ND. This causes a significant decline in elastic properties starting at 50 μm from the surface. Highlights Photocuring polymer resin was successfully reinforced with nanodiamonds. Microhardness increases from 95% up to 420%, close to commercial composites. Friction coefficient and wear rate are reduced with 1.6 wt% nanodiamonds. High levels of reinforcement reduce the effectiveness of photocuring.Wiley202420242024info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10115/40356reponame:BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlosinstname:Universidad Rey Juan CarlosInglésAtribución-NoComercial 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessoai:burjcdigital.urjc.es:10115/403562026-06-24T12:48:17Z
dc.title.none.fl_str_mv Microhardness and wear behavior of nanodiamond-reinforced nanocomposites for dental applications
title Microhardness and wear behavior of nanodiamond-reinforced nanocomposites for dental applications
spellingShingle Microhardness and wear behavior of nanodiamond-reinforced nanocomposites for dental applications
Moriche, Rocío
title_short Microhardness and wear behavior of nanodiamond-reinforced nanocomposites for dental applications
title_full Microhardness and wear behavior of nanodiamond-reinforced nanocomposites for dental applications
title_fullStr Microhardness and wear behavior of nanodiamond-reinforced nanocomposites for dental applications
title_full_unstemmed Microhardness and wear behavior of nanodiamond-reinforced nanocomposites for dental applications
title_sort Microhardness and wear behavior of nanodiamond-reinforced nanocomposites for dental applications
dc.creator.none.fl_str_mv Moriche, Rocío
Artigas-Arnaudas, Joaquín
Chetwani, Bhanu
Sánchez, María
Campo, Mónica
Prolongo, Margarita G.
Rams, Joaquín
Prolongo, Silvia G.
Ureña, Alejandro
author Moriche, Rocío
author_facet Moriche, Rocío
Artigas-Arnaudas, Joaquín
Chetwani, Bhanu
Sánchez, María
Campo, Mónica
Prolongo, Margarita G.
Rams, Joaquín
Prolongo, Silvia G.
Ureña, Alejandro
author_role author
author2 Artigas-Arnaudas, Joaquín
Chetwani, Bhanu
Sánchez, María
Campo, Mónica
Prolongo, Margarita G.
Rams, Joaquín
Prolongo, Silvia G.
Ureña, Alejandro
author2_role author
author
author
author
author
author
author
author
description In polymer-based dental composites, wear is a three-body wear system mainly abrasive, because of the food particles and wear products suspended in the oral cavity, which are transferred to the microcavities of the surface of the replacements. Due to this fact, the incorporation of nanodiamond as reinforcement in these polymer–matrix composites, which promotes the creation of a solid lubricant tribofilm surface could be advantageous. With the reinforcement of nanodiamonds, BisGMA/TEGDMA-based composites increase their microhardness by 95%–420%. A maximum hardness exceeding 65 HV is achieved with a reinforcement of 3.2 wt%. The specific wear rate of neat BisGMA/TEGDMA is near 10−4 mm3/Nm and the Archard's coefficient is 2.6 × 105. The incorporation of a content of 1.6 wt% ND is enough to cause a diminution of ~78% in the friction coefficient and a reduction of the specific wear rate and Archard's coefficient of ~50%. Nevertheless, the addition of relatively high contents reduces the effectiveness of photoinitiation and photocuring, which is related to the scattering and absorption of light radiation by ND. This causes a significant decline in elastic properties starting at 50 μm from the surface. Highlights Photocuring polymer resin was successfully reinforced with nanodiamonds. Microhardness increases from 95% up to 420%, close to commercial composites. Friction coefficient and wear rate are reduced with 1.6 wt% nanodiamonds. High levels of reinforcement reduce the effectiveness of photocuring.
publishDate 2024
dc.date.none.fl_str_mv 2024
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/10115/40356
url https://hdl.handle.net/10115/40356
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv Atribución-NoComercial 4.0 Internacional
http://creativecommons.org/licenses/by-nc/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Atribución-NoComercial 4.0 Internacional
http://creativecommons.org/licenses/by-nc/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
dc.source.none.fl_str_mv reponame:BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlos
instname:Universidad Rey Juan Carlos
instname_str Universidad Rey Juan Carlos
reponame_str BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlos
collection BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlos
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