Influence of AgVO3 incorporation on antimicrobial properties, hardness, roughness and adhesion of a soft denture liner

Autor(es)

Kreve, Simone ^[1] ; Oliveira, Viviane C. ^[2] ; Bachmann, Luciano ^[3] ; Alves, Oswaldo L. ^[4] ; Dos Reis, Andrea C. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Ribeirao Preto Dent Sch, Dept Dent Mat & Prosthodont, Ribeirao Preto, SP - Brazil

^[2] Univ Sao Paulo, Ribeirao Preto Dent Sch, Tech Oral Rehabil Lab, Ribeirao Preto - Brazil

^[3] Univ Sao Paulo, Dept Phys, Sch Philosophy Sci & Letters Ribeirao Preto, Ribeirao Preto, SP - Brazil

^[4] Univ Estadual Campinas, UNICAMP, Lab Solid State Chem, Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: SCIENTIFIC REPORTS; v. 9, AUG 15 2019.
• Citações Web of Science: 0

Resumo

The objective of this in vitro study was to investigate the effect of nanostructured silver vanadate decorated with silver nanoparticles (AgVO3) on antimicrobial activity, hardness, roughness, and adhesion of a soft denture liner. The antimicrobial efficacy of the Trusoft (Boswoth) liner incorporated with different concentrations of AgVO3 against Enterococcus faecalis, Pseudomonas aeruginosa, Candida albicans, and Staphyloccocus aureus (n = 5) was evaluated by the agar diffusion method. Roughness, hardness, and adhesion properties were also evaluated. The data were analyzed by analysis of variance (ANOVA) and Tukey's multiple comparison test with significance at the p < 0.05 level. At concentrations of 1 and 2.5%, AgVO3 incorporation was effective only against E. faecalis, and at 5 and 10%, against E. faecalis, P. aeruginosa, and C. albicans. None of the concentrations was effective against S. aureus. A decrease in hardness was found for the 1, 2.5, and 10% AgVO3 concentrations (p < 0.001) and at 5%, hardness was not affected. None of the concentrations affected the roughness of the material. A significant increase in tensile values was observed between the liner and heat-curing acrylic resin for 2.5% (p < 0.001) and 10% (p = 0.042) concentrations. AgVO3 incorporation to a soft denture liner promoted antimicrobial activity against E. faecalis, P. aeruginosa, and C. albicans without affecting roughness, maintaining the hardness properties recommended for soft and extra soft liners, and improving the adhesion between the liner and the acrylic resin used for dentures. (AU)

• Processo FAPESP: 12/09124-1 - Caracterização e avaliação das propriedades mecânicas e antimicrobianas de resinas acrílicas odontológicas experimentais: incorporação com vanadato de prata nanoestruturado
• Beneficiário: Andréa Cândido dos Reis
• Linha de fomento: Auxílio à Pesquisa - Regular
• Processo FAPESP: 17/25923-5 - Caracterização óptica no infravermelho próximo de amostras altamente espalhadoras
• Beneficiário: Luciano Bachmann
• Linha de fomento: Auxílio à Pesquisa - Regular
• Processo FAPESP: 12/02460-6 - Espectroscopia vibracional de tecidos biológicos: diagnóstico de lesões cancerosas e caracterização química de tecidos dentais irradiados com lasers
• Beneficiário: Luciano Bachmann
• Linha de fomento: Auxílio à Pesquisa - Regular