Non-Thermal O2 Plasma Efficacy on C. albicans and Its Effect on Denture Base Resin Color

Denture stomatitis is a disease involving C. albicans, which can affect elderly and immuno-compromised people. To avoid any recurrence of this pathology, it is necessary to treat patients regularly and disinfect dentures. However, the denture cleansers’ efficacy is not optimal and...

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Autores principales:	Christina Maillet, Serge Odof, Mikaël Meuret, Florian Le Bras, Frédéric Velard, Marie-Paule Gelle
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	<i>Candida albicans</i> denture base acrylic resins non-thermal plasma sterilization antifungal activity Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/dee1acff33e84b509bf1044f5bac6811
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spelling	oai:doaj.org-article:dee1acff33e84b509bf1044f5bac68112021-11-11T15:23:48ZNon-Thermal O<sub>2</sub> Plasma Efficacy on <i>C. albicans</i> and Its Effect on Denture Base Resin Color10.3390/app1121103672076-3417https://doaj.org/article/dee1acff33e84b509bf1044f5bac68112021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/21/10367https://doaj.org/toc/2076-3417Denture stomatitis is a disease involving <i>C. albicans</i>, which can affect elderly and immuno-compromised people. To avoid any recurrence of this pathology, it is necessary to treat patients regularly and disinfect dentures. However, the denture cleansers’ efficacy is not optimal and often leads to adverse color effects on the denture base resins. The aim of this study was to investigate the efficacy of a low-pressure non-thermal O<sub>2</sub> plasma (NTP) treatment on <i>C. albicans</i> seeded on ProBase<sup>®</sup>Hot resin (Ivoclar Vivadent). The viability reduction of <i>C. albicans</i> was assessed by colony forming units (CFU) analysis and by scanning electron microscopy (SEM). The effect of repeated treatments on the resin color was evaluated by spectrophotometry. The resin samples were placed in a sealed bag in which O<sub>2</sub> plasma was generated in low-pressure conditions. The results showed that a 120-min O<sub>2</sub> NTP treatment led to a 6-log reduction of <i>C. albicans</i> viability (<i>p</i> < 0.05) and to yeasts’ major alterations observed by SEM. Furthermore, significant slight color changes of the resin (∆E<sub>00</sub> = 1.33) were noted only after six plasma treatments (<i>p</i> < 0.05). However, the denture aesthetic was preserved, as the color changes were not perceptible and remained below the acceptability threshold (∆E<sub>00</sub> < 4).Christina MailletSerge OdofMikaël MeuretFlorian Le BrasFrédéric VelardMarie-Paule GelleMDPI AGarticle<i>Candida albicans</i>denture baseacrylic resinsnon-thermal plasmasterilizationantifungal activityTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10367, p 10367 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	<i>Candida albicans</i> denture base acrylic resins non-thermal plasma sterilization antifungal activity Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	<i>Candida albicans</i> denture base acrylic resins non-thermal plasma sterilization antifungal activity Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Christina Maillet Serge Odof Mikaël Meuret Florian Le Bras Frédéric Velard Marie-Paule Gelle Non-Thermal O<sub>2</sub> Plasma Efficacy on <i>C. albicans</i> and Its Effect on Denture Base Resin Color
description	Denture stomatitis is a disease involving <i>C. albicans</i>, which can affect elderly and immuno-compromised people. To avoid any recurrence of this pathology, it is necessary to treat patients regularly and disinfect dentures. However, the denture cleansers’ efficacy is not optimal and often leads to adverse color effects on the denture base resins. The aim of this study was to investigate the efficacy of a low-pressure non-thermal O<sub>2</sub> plasma (NTP) treatment on <i>C. albicans</i> seeded on ProBase<sup>®</sup>Hot resin (Ivoclar Vivadent). The viability reduction of <i>C. albicans</i> was assessed by colony forming units (CFU) analysis and by scanning electron microscopy (SEM). The effect of repeated treatments on the resin color was evaluated by spectrophotometry. The resin samples were placed in a sealed bag in which O<sub>2</sub> plasma was generated in low-pressure conditions. The results showed that a 120-min O<sub>2</sub> NTP treatment led to a 6-log reduction of <i>C. albicans</i> viability (<i>p</i> < 0.05) and to yeasts’ major alterations observed by SEM. Furthermore, significant slight color changes of the resin (∆E<sub>00</sub> = 1.33) were noted only after six plasma treatments (<i>p</i> < 0.05). However, the denture aesthetic was preserved, as the color changes were not perceptible and remained below the acceptability threshold (∆E<sub>00</sub> < 4).
format	article
author	Christina Maillet Serge Odof Mikaël Meuret Florian Le Bras Frédéric Velard Marie-Paule Gelle
author_facet	Christina Maillet Serge Odof Mikaël Meuret Florian Le Bras Frédéric Velard Marie-Paule Gelle
author_sort	Christina Maillet
title	Non-Thermal O<sub>2</sub> Plasma Efficacy on <i>C. albicans</i> and Its Effect on Denture Base Resin Color
title_short	Non-Thermal O<sub>2</sub> Plasma Efficacy on <i>C. albicans</i> and Its Effect on Denture Base Resin Color
title_full	Non-Thermal O<sub>2</sub> Plasma Efficacy on <i>C. albicans</i> and Its Effect on Denture Base Resin Color
title_fullStr	Non-Thermal O<sub>2</sub> Plasma Efficacy on <i>C. albicans</i> and Its Effect on Denture Base Resin Color
title_full_unstemmed	Non-Thermal O<sub>2</sub> Plasma Efficacy on <i>C. albicans</i> and Its Effect on Denture Base Resin Color
title_sort	non-thermal o<sub>2</sub> plasma efficacy on <i>c. albicans</i> and its effect on denture base resin color
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/dee1acff33e84b509bf1044f5bac6811
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Non-Thermal O<sub>2</sub> Plasma Efficacy on <i>C. albicans</i> and Its Effect on Denture Base Resin Color

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