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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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Autores principales: Arroyo-Lamas, Nagore, Arteagoitia, Iciar, Ugalde, Unai
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7961349/
https://www.ncbi.nlm.nih.gov/pubmed/33807532
http://dx.doi.org/10.3390/ijms22052597
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author Arroyo-Lamas, Nagore
Arteagoitia, Iciar
Ugalde, Unai
author_facet Arroyo-Lamas, Nagore
Arteagoitia, Iciar
Ugalde, Unai
author_sort Arroyo-Lamas, Nagore
collection PubMed
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.
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spelling pubmed-79613492021-03-17 Surface Activation of Titanium Dental Implants by Using UVC-LED Irradiation Arroyo-Lamas, Nagore Arteagoitia, Iciar Ugalde, Unai Int J Mol Sci Article 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. MDPI 2021-03-05 /pmc/articles/PMC7961349/ /pubmed/33807532 http://dx.doi.org/10.3390/ijms22052597 Text en © 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/).
spellingShingle Article
Arroyo-Lamas, Nagore
Arteagoitia, Iciar
Ugalde, Unai
Surface Activation of Titanium Dental Implants by Using UVC-LED Irradiation
title 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_short Surface Activation of Titanium Dental Implants by Using UVC-LED Irradiation
title_sort surface activation of titanium dental implants by using uvc-led irradiation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7961349/
https://www.ncbi.nlm.nih.gov/pubmed/33807532
http://dx.doi.org/10.3390/ijms22052597
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