Surface Activation of Titanium Dental Implants by Using UVC-LED Irradiation

Organic contaminants significantly limit the bioactivity of titanium implants, resulting in the degradation known as the ageing of titanium. To reactivate the surfaces, they can be photofunctionalized, i.e., irradiated with C-range ultraviolet (UVC) light. This descriptive in vitro study compares th...

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Detalles Bibliográficos
Autores: Arroyo Lamas, Nagore, Arteagoitia Calvo, María Iciar, Ugalde Olea, Unai
Tipo de recurso: artículo
Fecha de publicación:2021
País:España
Institución:Universidad del País Vasco
Repositorio:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/50632
Acceso en línea:http://hdl.handle.net/10810/50632
Access Level:acceso abierto
Palabra clave:titanium
dental implants
ultraviolet rays
hydrocarbons
decontamination
microscopy
electron
scanning
photoelectron spectroscopy
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spelling Surface Activation of Titanium Dental Implants by Using UVC-LED IrradiationArroyo Lamas, NagoreArteagoitia Calvo, María IciarUgalde Olea, Unaititaniumdental implantsultraviolet rayshydrocarbonsdecontaminationmicroscopyelectronscanningphotoelectron spectroscopyOrganic contaminants significantly limit the bioactivity of titanium implants, resulting in the degradation known as the ageing of titanium. To reactivate the surfaces, they can be photofunctionalized, i.e., irradiated with C-range ultraviolet (UVC) light. This descriptive in vitro study compares the effectiveness of novel light-emitting diode (LED) technology to remove contaminant hydrocarbons from three different commercially available titanium dental implants: THD, TiUnite, and SLA. The surface topography and morphology were characterized by scanning electron microscopy (SEM). The chemical compositions were analyzed by X-ray photoelectron spectroscopy (XPS), before and after the lighting treatment, by a pair of closely placed UVC (λ = 278 nm) and LED devices for 24 h. SEM analysis showed morphological differences at the macro- and micro-scopic level. XPS analysis showed a remarkable reduction in the carbon contents after the UVC treatment: from 25.6 to 19.5 C at. % (carbon atomic concentration) in the THD; from 30.2 to 20.2 C at. % in the TiUnite; from 26.1 to 19.2 C at. % in the SLA surface. Simultaneously, the concentration of oxygen and titanium increased. Therefore, LED-based UVC irradiation decontaminated titanium surfaces and improved the chemical features of them, regardless of the kind of surface.This research was funded by University of the Basque Country UPV/EHU, PPGA18/5 Research Group and, supported by the Department of Education of the Basque Government within the fund for research groups of the Basque university system IT978-16.MDPI2021202120212021info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10810/50632reponame:Addi. Archivo Digital para la Docencia y la Investigacióninstname:Universidad del País VascoIngléshttps://www.mdpi.com/1422-0067/22/5/2597/htminfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/3.0/es/2021 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).oai:addi.ehu.eus:10810/506322026-06-18T09:23:17Z
dc.title.none.fl_str_mv Surface Activation of Titanium Dental Implants by Using UVC-LED Irradiation
title Surface Activation of Titanium Dental Implants by Using UVC-LED Irradiation
spellingShingle Surface Activation of Titanium Dental Implants by Using UVC-LED Irradiation
Arroyo Lamas, Nagore
titanium
dental implants
ultraviolet rays
hydrocarbons
decontamination
microscopy
electron
scanning
photoelectron spectroscopy
title_short Surface Activation of Titanium Dental Implants by Using UVC-LED Irradiation
title_full Surface Activation of Titanium Dental Implants by Using UVC-LED Irradiation
title_fullStr Surface Activation of Titanium Dental Implants by Using UVC-LED Irradiation
title_full_unstemmed Surface Activation of Titanium Dental Implants by Using UVC-LED Irradiation
title_sort Surface Activation of Titanium Dental Implants by Using UVC-LED Irradiation
dc.creator.none.fl_str_mv Arroyo Lamas, Nagore
Arteagoitia Calvo, María Iciar
Ugalde Olea, Unai
author Arroyo Lamas, Nagore
author_facet Arroyo Lamas, Nagore
Arteagoitia Calvo, María Iciar
Ugalde Olea, Unai
author_role author
author2 Arteagoitia Calvo, María Iciar
Ugalde Olea, Unai
author2_role author
author
dc.subject.none.fl_str_mv titanium
dental implants
ultraviolet rays
hydrocarbons
decontamination
microscopy
electron
scanning
photoelectron spectroscopy
topic titanium
dental implants
ultraviolet rays
hydrocarbons
decontamination
microscopy
electron
scanning
photoelectron spectroscopy
description Organic contaminants significantly limit the bioactivity of titanium implants, resulting in the degradation known as the ageing of titanium. To reactivate the surfaces, they can be photofunctionalized, i.e., irradiated with C-range ultraviolet (UVC) light. This descriptive in vitro study compares the effectiveness of novel light-emitting diode (LED) technology to remove contaminant hydrocarbons from three different commercially available titanium dental implants: THD, TiUnite, and SLA. The surface topography and morphology were characterized by scanning electron microscopy (SEM). The chemical compositions were analyzed by X-ray photoelectron spectroscopy (XPS), before and after the lighting treatment, by a pair of closely placed UVC (λ = 278 nm) and LED devices for 24 h. SEM analysis showed morphological differences at the macro- and micro-scopic level. XPS analysis showed a remarkable reduction in the carbon contents after the UVC treatment: from 25.6 to 19.5 C at. % (carbon atomic concentration) in the THD; from 30.2 to 20.2 C at. % in the TiUnite; from 26.1 to 19.2 C at. % in the SLA surface. Simultaneously, the concentration of oxygen and titanium increased. Therefore, LED-based UVC irradiation decontaminated titanium surfaces and improved the chemical features of them, regardless of the kind of surface.
publishDate 2021
dc.date.none.fl_str_mv 2021
2021
2021
2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10810/50632
url http://hdl.handle.net/10810/50632
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://www.mdpi.com/1422-0067/22/5/2597/htm
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/3.0/es/
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/3.0/es/
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:Addi. Archivo Digital para la Docencia y la Investigación
instname:Universidad del País Vasco
instname_str Universidad del País Vasco
reponame_str Addi. Archivo Digital para la Docencia y la Investigación
collection Addi. Archivo Digital para la Docencia y la Investigación
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