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Utilize este identificador para citar ou criar um link para este item: http://acervodigital.unesp.br/handle/11449/16439
Título: 
Adherence in vitro of Candida albicans to plasma treated acrylic resin. Effect of plasma parameters, surface roughness and salivary pellicle
Autor(es): 
Instituição: 
Universidade Estadual Paulista (UNESP)
ISSN: 
0003-9969
Financiador: 
  • Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Número do financiamento: 
  • FAPESP: 07/02210-1
  • FAPESP: 07/04917-5
  • CNPq: 479252/2007-6
Resumo: 
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.
Data de publicação: 
1-Out-2010
Citação: 
Archives of Oral Biology. Oxford: Pergamon-Elsevier B.V. Ltd, v. 55, n. 10, p. 763-770, 2010.
Duração: 
763-770
Publicador: 
Pergamon-Elsevier B.V. Ltd
Palavras-chaves: 
  • Candida albicans
  • Denture acrylic
  • Saliva
  • Roughness
  • Fungal adherence
Fonte: 
http://dx.doi.org/10.1016/j.archoralbio.2010.06.015
Endereço permanente: 
Direitos de acesso: 
Acesso restrito
Tipo: 
outro
Fonte completa:
http://repositorio.unesp.br/handle/11449/16439
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