Effect of disinfection and accelerated ageing on dimensional stability and detail reproduction of a facial silicone with nanoparticles
Data de publicação2012-05-01
Direito de acesso
MetadadosExibir registro completo
The aim of the present study was to evaluate the effect of disinfection and accelerated ageing on the dimensional stability and detail reproduction of a facial silicone with different types of nanoparticle. A total of 60 specimens were fabricated with Silastic MDX 4-4210 silicone and they were divided into three groups: colourless and pigmented with nanoparticles (make-up powder and ceramic powder). Half of the specimens of each group were disinfected with Efferdent tablets and half with neutral soap for 60 days. Afterwards, all specimens were subjected to accelerated ageing. Both dimensional stability and detail reproduction tests were performed after specimen fabrication (initial period), after chemical disinfection, and after accelerated ageing periods (252, 504 and 1008 hours). The dimensional stability test was conducted using AutoCAD software, while detail reproduction was analysed using a stereoscope magnifying glass. Dimensional stability values were statistically evaluated by analysis of variance (ANOVA) followed by Tukey's test (p < 0.01). Detail reproduction results were compared using a score. Chemical disinfection and also accelerated ageing affected the dimensional stability of the facial silicone with statistically significant results. The silicone's detail reproduction was not affected by these two factors regardless of nanoparticle type, disinfection and accelerated ageing. © 2012 Informa UK, Ltd.
Como citar este documento
Este item aparece nas seguintes coleções
Exibindo os itens relacionados pelo título, autor e palavra-chave.
Komiyama, Edson Yukio ; Back-Brito, Graziella Nuernberg ; Balducci, Ivan ; Koga-Ito, Cristiane Yumi (Brazilian Oral Research, 2010) [Artigo]The aim of this study was to evaluate alternative methods for the disinfection of toothbrushes considering that most of the previously proposed methods are expensive and cannot be easily implemented. Two-hundred toothbrushes ...
Effectiveness of six different disinfectants on removing five microbial species and effects on the topographic characteristics of acrylic resin Silva, Francine Cristina da; Kimpara, Estevão Tomomitsu ; Mancini, Maria Nadir Gasparotto; Balducci, Ivan; Jorge, Antonio Olavo Cardoso ; Koga-Ito, Cristiane Yumi (Journal of Prosthodontics, 2008) [Artigo]Purpose: The aim of this study was to evaluate the effectiveness of disinfectant solutions (1% sodium hypochlorite, 2% chlorhexidine digluconate, 2% glutaraldehyde, 100% vinegar, tabs of sodium perborate-based denture ...
Vacchi, Francine Inforçato; Albuquerque, Anjaina Fernandes; Vendemiatti, Josiane Aparecida; Morales, Daniel Alexandre; Ormond, Alexandra B.; Freeman, Harold S.; Zocolo, Guilherme Julião ; Zanoni, Maria Valnice Boldrin ; Umbuzeiro, Gisela (Science of the Total Environment, 2013) [Artigo]Azo dyes, the most widely used family of synthetic dyes, are often employed as colorants in areas such as textiles, plastics, foods/drugs/cosmetics, and electronics. Following their use in industrial applications, azo dyes ...