UNLABELLED: The adhesion of Candida albicans to surfaces is the prerequisite for occurrence of denture stomatitis. OBJECTIVE: Hence, this study investigated if surface modifications with plasma treatments could reduce the adherence of C. albicans to a denture base resin. METHODS: Specimens (n=180) with roughened and smooth surfaces were made and divided into five groups: control-specimens were left untreated; experimental groups-specimens were submitted to plasma treatments to obtain surfaces with different hydrophobicity (Ar/50W; ArO2/70W; AAt/130W) or incorporation of fluorine (Ar/SF(6)70W). Contact angle measurements were performed immediately after the treatments and after immersion in water for 48h. For each group, half of the specimens were incubated with saliva prior to the adhesion assay. The number of adherent yeasts was evaluated by XTT reduction method. RESULTS: For the experimental groups, there was significant change in the mean contact angle after 48h of immersion in water. Groups ArO2/70W and ArSF6/70W showed significantly lower absorbance readings than the other groups, regardless the presence or absence of saliva and surface roughness. CONCLUSIONS: Results demonstrated that ArO2/70W and ArSF6/70W plasma treatments showed promising potential for reducing the adherence of C. albicans to denture base resins. Copyright 2010 Elsevier Ltd. All rights reserved.
UNLABELLED: The adhesion of Candida albicans to surfaces is the prerequisite for occurrence of denture stomatitis. OBJECTIVE: Hence, this study investigated if surface modifications with plasma treatments could reduce the adherence of C. albicans to a denture base resin. METHODS: Specimens (n=180) with roughened and smooth surfaces were made and divided into five groups: control-specimens were left untreated; experimental groups-specimens were submitted to plasma treatments to obtain surfaces with different hydrophobicity (Ar/50W; ArO2/70W; AAt/130W) or incorporation of fluorine (Ar/SF(6)70W). Contact angle measurements were performed immediately after the treatments and after immersion in water for 48h. For each group, half of the specimens were incubated with saliva prior to the adhesion assay. The number of adherent yeasts was evaluated by XTT reduction method. RESULTS: For the experimental groups, there was significant change in the mean contact angle after 48h of immersion in water. Groups ArO2/70W and ArSF6/70W showed significantly lower absorbance readings than the other groups, regardless the presence or absence of saliva and surface roughness. CONCLUSIONS: Results demonstrated that ArO2/70W and ArSF6/70W plasma treatments showed promising potential for reducing the adherence of C. albicans to denture base resins. Copyright 2010 Elsevier Ltd. All rights reserved.
Authors: Rosa Elvira Nuñez-Anita; Laura Susana Acosta-Torres; Jorge Vilar-Pineda; Juan Carlos Martínez-Espinosa; Javier de la Fuente-Hernández; Víctor Manuel Castaño Journal: Int J Nanomedicine Date: 2014-08-20
Authors: Shaimaa M Fouda; Mohammed M Gad; Passent Ellakany; Ahmad M Al-Thobity; Fahad A Al-Harbi; Jorma I Virtanen; Aune Raustia Journal: J Appl Oral Sci Date: 2019-11-04 Impact factor: 2.698
Authors: Juliê Marra; André Gustavo Paleari; Larissa Santana Rodriguez; Andressa Rosa Perin Leite; Ana Carolina Pero; Marco Antonio Compagnoni Journal: J Appl Oral Sci Date: 2012 Nov-Dec Impact factor: 2.698