Surface-engineered and agnps-fortified dental archwires: structural and microbiological assessments

Treatment with fixed orthodontic appliances is associated with increased difficulty in maintaining oral hygiene. Orthodontic appliances result in specific changes in the oral environment, including a reduction in pH and an elevation of cariogenic flora levels in saliva and biofilm. This also entails...

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Authors: Hassan, Alaa Adawy|||0000-0001-5517-6693, Mauvezín Quevedo, Mario Andrés|||0000-0002-6421-7108, Andrés Gómez, M. T., Mendoza Meroño, Rafael, Carlos Villafranca, Félix Antonio de|||0000-0001-8704-9015
Format: article
Publication Date:2025
Country:España
Institution:Universidad de Oviedo (UNIOVI)
Repository:RUO. Repositorio Institucional de la Universidad de Oviedo
Language:English
OAI Identifier:oai:dnet:ruo_________::ed3863e8d8ad4433968c0a78760d5a9b
Online Access:https://hdl.handle.net/10651/81205
https://dx.doi.org/10.1016/j.apsusc.2025.162996
Access Level:Open access
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spelling Surface-engineered and agnps-fortified dental archwires: structural and microbiological assessmentsHassan, Alaa Adawy|||0000-0001-5517-6693Mauvezín Quevedo, Mario Andrés|||0000-0002-6421-7108Andrés Gómez, M. T.Mendoza Meroño, RafaelCarlos Villafranca, Félix Antonio de|||0000-0001-8704-9015Treatment with fixed orthodontic appliances is associated with increased difficulty in maintaining oral hygiene. Orthodontic appliances result in specific changes in the oral environment, including a reduction in pH and an elevation of cariogenic flora levels in saliva and biofilm. This also entails a risk of gingival and cariogenic lesions. This tendency can be favored or hindered by using different materials. Recently, considerable interest has grown considering the usage of ions or nanoparticles to increase the antimicrobial affinity of biomaterials used for orthodontic appliances. Therefore, in this study we explored the possibilities of improving the surface characteristics and biofunctionality of the orthodontic materials used in clinical dental practice. Hereby, seven commonly used commercial archwires, belonging compositionally to four alloys: stainless-steel, β-titanium alloy, nickel-titanium alloy, and titanium-niobium alloy were surface-treated, through hydrothermal etching using an aqueous phosphate solution, before being coated with silver. All samples were analyzed structurally and microbiologically. The structural assessment was performed pre- and post-etching and post-silver deposition using scanning electron microscopy (SEM) and high-resolution and scanning transmission electron microscopy (HRTEM and STEM), all combined with energy dispersive X-ray spectroscopy (EDX). This assessment confirmed the successful etching process and the growth of two types of titanium phosphate phases on most of the titaniumcontaining alloys. Furthermore, microscopic inspection revealed that the obtained silver coating on all alloys is in the form of silver nanoparticles (AgNPs). Microbiologically, the bacterial and fungal affinity of the blank and treated archwires were assessed, besides their cytotoxicity. Overall, the surface treatment of most of the alloys succeeded in improving their antimicrobial effectiveness, without much compromise to their cytocompatibility for at least half of the treated archwires.Spanish Ministry of Science and Innovation [MCI-21-PID2020-113558RB-C41, PTA2021-020817-I, RYC2022-038426-I]ElsevierElsevier20252025-01-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articlehttps://hdl.handle.net/10651/81205https://dx.doi.org/10.1016/j.apsusc.2025.162996Scopushttps://www.scopus.com/inward/record.uri?eid=2-s2.0-105000502883&doi=10.1016%2fj.apsusc.2025.162996&partnerID=40&md5=fdc86bb3388de417d239f59d58c376b8reponame:RUO. Repositorio Institucional de la Universidad de Oviedoinstname:Universidad de Oviedo (UNIOVI)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial 4.0 Internationalhttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessoai:dnet:ruo_________::ed3863e8d8ad4433968c0a78760d5a9b2026-06-07T06:38:51Z
dc.title.none.fl_str_mv Surface-engineered and agnps-fortified dental archwires: structural and microbiological assessments
title Surface-engineered and agnps-fortified dental archwires: structural and microbiological assessments
spellingShingle Surface-engineered and agnps-fortified dental archwires: structural and microbiological assessments
Hassan, Alaa Adawy|||0000-0001-5517-6693
title_short Surface-engineered and agnps-fortified dental archwires: structural and microbiological assessments
title_full Surface-engineered and agnps-fortified dental archwires: structural and microbiological assessments
title_fullStr Surface-engineered and agnps-fortified dental archwires: structural and microbiological assessments
title_full_unstemmed Surface-engineered and agnps-fortified dental archwires: structural and microbiological assessments
title_sort Surface-engineered and agnps-fortified dental archwires: structural and microbiological assessments
dc.creator.none.fl_str_mv Hassan, Alaa Adawy|||0000-0001-5517-6693
Mauvezín Quevedo, Mario Andrés|||0000-0002-6421-7108
Andrés Gómez, M. T.
Mendoza Meroño, Rafael
Carlos Villafranca, Félix Antonio de|||0000-0001-8704-9015
author Hassan, Alaa Adawy|||0000-0001-5517-6693
author_facet Hassan, Alaa Adawy|||0000-0001-5517-6693
Mauvezín Quevedo, Mario Andrés|||0000-0002-6421-7108
Andrés Gómez, M. T.
Mendoza Meroño, Rafael
Carlos Villafranca, Félix Antonio de|||0000-0001-8704-9015
author_role author
author2 Mauvezín Quevedo, Mario Andrés|||0000-0002-6421-7108
Andrés Gómez, M. T.
Mendoza Meroño, Rafael
Carlos Villafranca, Félix Antonio de|||0000-0001-8704-9015
author2_role author
author
author
author
description Treatment with fixed orthodontic appliances is associated with increased difficulty in maintaining oral hygiene. Orthodontic appliances result in specific changes in the oral environment, including a reduction in pH and an elevation of cariogenic flora levels in saliva and biofilm. This also entails a risk of gingival and cariogenic lesions. This tendency can be favored or hindered by using different materials. Recently, considerable interest has grown considering the usage of ions or nanoparticles to increase the antimicrobial affinity of biomaterials used for orthodontic appliances. Therefore, in this study we explored the possibilities of improving the surface characteristics and biofunctionality of the orthodontic materials used in clinical dental practice. Hereby, seven commonly used commercial archwires, belonging compositionally to four alloys: stainless-steel, β-titanium alloy, nickel-titanium alloy, and titanium-niobium alloy were surface-treated, through hydrothermal etching using an aqueous phosphate solution, before being coated with silver. All samples were analyzed structurally and microbiologically. The structural assessment was performed pre- and post-etching and post-silver deposition using scanning electron microscopy (SEM) and high-resolution and scanning transmission electron microscopy (HRTEM and STEM), all combined with energy dispersive X-ray spectroscopy (EDX). This assessment confirmed the successful etching process and the growth of two types of titanium phosphate phases on most of the titaniumcontaining alloys. Furthermore, microscopic inspection revealed that the obtained silver coating on all alloys is in the form of silver nanoparticles (AgNPs). Microbiologically, the bacterial and fungal affinity of the blank and treated archwires were assessed, besides their cytotoxicity. Overall, the surface treatment of most of the alloys succeeded in improving their antimicrobial effectiveness, without much compromise to their cytocompatibility for at least half of the treated archwires.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/10651/81205
https://dx.doi.org/10.1016/j.apsusc.2025.162996
url https://hdl.handle.net/10651/81205
https://dx.doi.org/10.1016/j.apsusc.2025.162996
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
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Attribution-NonCommercial 4.0 International
http://creativecommons.org/licenses/by-nc/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
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Attribution-NonCommercial 4.0 International
http://creativecommons.org/licenses/by-nc/4.0/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
Elsevier
publisher.none.fl_str_mv Elsevier
Elsevier
dc.source.none.fl_str_mv Scopus
https://www.scopus.com/inward/record.uri?eid=2-s2.0-105000502883&doi=10.1016%2fj.apsusc.2025.162996&partnerID=40&md5=fdc86bb3388de417d239f59d58c376b8
reponame:RUO. Repositorio Institucional de la Universidad de Oviedo
instname:Universidad de Oviedo (UNIOVI)
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