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Article

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

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Laboratoire-Biomatériaux et Inflammation en Site Osseux-EA 4691, Université de Reims Champagne Ardenne, SFR CAP-Santé, FED 4231, 51100 Reims, France
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UFR Odontologie de Reims, Université de Reims Champagne Ardenne, 2 rue du Général Koenig, 51100 Reims, France
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Pôle de Médecine Bucco-Dentaire de Reims, Centre Hospitalier Universitaire de Reims, 45 rue Cognacq-Jay, 51100 Reims, France
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Ecole nationale Supérieure d’Ingénieurs de Reims, Université de Reims Champagne Ardenne, 3 Esplanade Roland Garros, FED 4231, 51100 Reims, France
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Laboratoire-ItheMM-EA 7548, Université de Reims Champagne Ardenne, Chemin des Rouliers, FED 4231, 51100 Reims, France
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Aurora Cold Plasma Sterilisation, 70 rue du Docteur Yersin, 59120 Loos, France
*
Author to whom correspondence should be addressed.
Academic Editors: Gabriele Cristoforetti, Vincenzo Palleschi and Nikolaos Silikas
Appl. Sci. 2021, 11(21), 10367; https://doi.org/10.3390/app112110367
Received: 14 September 2021 / Revised: 26 October 2021 / Accepted: 31 October 2021 / Published: 4 November 2021
(This article belongs to the Special Issue Recent Advances in Plasma Technology and Applications)
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 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 O2 plasma (NTP) treatment on C. albicans seeded on ProBase®Hot resin (Ivoclar Vivadent). The viability reduction of C. albicans 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 O2 plasma was generated in low-pressure conditions. The results showed that a 120-min O2 NTP treatment led to a 6-log reduction of C. albicans viability (p < 0.05) and to yeasts’ major alterations observed by SEM. Furthermore, significant slight color changes of the resin (∆E00 = 1.33) were noted only after six plasma treatments (p < 0.05). However, the denture aesthetic was preserved, as the color changes were not perceptible and remained below the acceptability threshold (∆E00 < 4). View Full-Text
Keywords: Candida albicans; denture base; acrylic resins; non-thermal plasma; sterilization; antifungal activity; resin color; adverse effects Candida albicans; denture base; acrylic resins; non-thermal plasma; sterilization; antifungal activity; resin color; adverse effects
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MDPI and ACS Style

Maillet, C.; Odof, S.; Meuret, M.; Le Bras, F.; Velard, F.; Gelle, M.-P. Non-Thermal O2 Plasma Efficacy on C. albicans and Its Effect on Denture Base Resin Color. Appl. Sci. 2021, 11, 10367. https://doi.org/10.3390/app112110367

AMA Style

Maillet C, Odof S, Meuret M, Le Bras F, Velard F, Gelle M-P. Non-Thermal O2 Plasma Efficacy on C. albicans and Its Effect on Denture Base Resin Color. Applied Sciences. 2021; 11(21):10367. https://doi.org/10.3390/app112110367

Chicago/Turabian Style

Maillet, Christina, Serge Odof, Mikaël Meuret, Florian Le Bras, Frédéric Velard, and Marie-Paule Gelle. 2021. "Non-Thermal O2 Plasma Efficacy on C. albicans and Its Effect on Denture Base Resin Color" Applied Sciences 11, no. 21: 10367. https://doi.org/10.3390/app112110367

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