Evaluation of fungal adherence to plasma-modified polymethylmethacrylate

Autor(es)

Zamperini, C. A. ^[1] ; Machado, A. L. ^[1] ; Vergani, C. E. ^[1] ; Pavarina, A. C. ^[1] ; Rangel, E. C. ^[2] ; Cruz, N. C. ^[2]

Afiliação do(s) autor(es)

^[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

• Tipo de documento: Artigo Científico
• Fonte: MYCOSES; v. 54, n. 5, p. E344-E351, SEP 2011.
• Citações Web of Science: 7

Resumo

There is a propensity for fungal adherence to the polymethylmethacrylate used for making denture bases. Therefore, this study investigated whether surface modifications with plasma treatments would reduce the adherence of Candida albicans to a denture base resin. Samples (n = 180) with smooth and rough surfaces were made and divided into five groups: control non-treated; experimental groups submitted to plasma treatments to obtain surfaces with different hydrophobicities (Ar/50 W; ArO(2)/70 W; AAt/130 W) or with incorporated fluoride (Ar/SF(6)70 W). Contact angles were measured immediately after treatments and after samples were immersed in water for 48 h. For each group, half the samples were incubated with saliva before the adherence test. The number of adhered C. albicans was evaluated by counting after crystal violet staining. The plasma treatments were effective in modifying the polymethylmethacrylate surface. However, there was a significant alteration in the contact angle measured after immersion in water. No statistically significant difference in the adherence of C. albicans was observed between the experimental and control groups, irrespective of the presence or absence of saliva, and surface roughness. (AU)

• Processo FAPESP: 07/02210-1 - Efeito de diferentes tratamentos com plasma na adesão de Candida albicans em uma resina para base de prótese
• Beneficiário: Camila Andrade Zamperini Navarro
• Modalidade de apoio: Bolsas no Brasil - Mestrado
• Processo FAPESP: 07/04917-5 - Efeito de diferentes tratamentos com plasma na adesão de Candida albicans em uma resina para base de prótese
• Beneficiário: Ana Lucia Machado
• Modalidade de apoio: Auxílio à Pesquisa - Regular