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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Adherence in vitro of Candida albicans to plasma treated acrylic resin. Effect of plasma parameters, surface roughness and salivary pellicle

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Author(s):
Zamperini, Camila Andrade [1] ; Machado, Ana Lucia [1] ; Vergani, Carlos Eduardo [1] ; Pavarina, Ana Claudia [1] ; Giampaolo, Eunice Terezinha [1] ; da Cruz, Nilson Cristino [2]
Total Authors: 6
Affiliation:
[1] UNESP Univ Estadual Paulista, Dept Dent Mat & Prosthodont, Araraquara Dent Sch, BR-14801903 Sao Paulo - Brazil
[2] UNESP Univ Estadual Paulista, Lab Technol Plasmas, BR-14801903 Sao Paulo - Brazil
Total Affiliations: 2
Document type: Journal article
Source: ARCHIVES OF ORAL BIOLOGY; v. 55, n. 10, p. 763-770, OCT 2010.
Web of Science Citations: 39
Abstract

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/50 W; ArO(2)/70 W; AAt/130 W) or incorporation of fluorine (Ar/SF(6)70 W). Contact angle measurements were performed immediately after the treatments and after immersion in water for 48 h. 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 48 h of immersion in water. Groups ArO(2)/70 W and ArSF(6)/70 W showed significantly lower absorbance readings than the other groups, regardless the presence or absence of saliva and surface roughness. Conclusions: Results demonstrated that ArO(2)/70 W and ArSF(6)/70 W plasma treatments showed promising potential for reducing the adherence of C. albicans to denture base resins. (C) 2010 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 07/02210-1 - Effect of different plasma treatments on the adhesion of Candida albicans to one denture base acrylic resin
Grantee:Camila Andrade Zamperini Navarro
Support Opportunities: Scholarships in Brazil - Master
FAPESP's process: 07/04917-5 - Effect of different plasma treatments on the adhesion of Candida albicans to one denture base acrylic resin
Grantee:Ana Lucia Machado
Support Opportunities: Regular Research Grants