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Title in Portuguese: Micro-raman spectroscopy, colour stability, roughness and mass variation of removable partial dentures after cleansing with white wine vinegar
Author: Araújo, Alene Silva Melo
Flores, Paula Ramalho Franca
Feitosa, Victor Pinheiro
Valada, Lídia Audrey Rocha
Paula, Diego Martins de
Fiallo, Nicole de Mello
Rola, Igor Ribeiro
Rola, José Antero Soares
Fiallo, Ana Cristina de Mello
Keywords: Análise Espectral Raman
Spectrum Analysis, Raman
Prótese Parcial Removível
Denture, Partial, Removable
Issue Date: Oct-2018
Publisher: Journal of Young Pharmacists
Citation: ARAÚJO, Alene Silva Melo et al. Micro-Raman spectroscopy, colour stability, roughness and mass variation of removable partial dentures after cleansing with white wine vinegar. Journal of Young Pharmacists, v. 10, n. 4, p. 399-403, oct. 2018.
Abstract: Objective: The aim of this study was to analyze the in vitro effect of White Wine Vinegar (WWV) on surface properties of removable partial dentures’ (RPD) components. Methods: Thirty specimens of one artificial teeth and a slab of cobalt-chromium alloy for RPDs were prepared. Specimens were distributed randomly in 3 groups (n=10): distilled water (negative control), WWV and CoregaTabs® (commercial control). Before and after immersion regimens, the analyses undertaken were colour stability assessed using spectrophotometer, mean roughness surveyed by perfilometry, mass variation using an analytical balance and surface composition assessed by Raman micro-spectroscopy. The data were statistically analyzed by repeated-measures ANOVA and Tukey test (p<0.05). Results: No statis-tically significant differences were observed between the treatments on roughness and colour change. Distilled water increased the weight of specimens whilst CoregaTabs and WWV reduced significantly the mass (p<0.05). In the Raman analysis, reduction of Co-Cr peak at 470 cm-1 was detected after immersion in distilled water and CoregaTabs, demonstrating signs of alloy degradation. Peak at 2430 cm-1 after immersion in distilled wa-ter was observed. Conclusion: WWV at 30 vol % is a promising low-cost alternative for the daily cleaning of removable dentures without altering surface properties and composition of removable partial denture components.Key words: Remo
metadata.dc.type: Artigo de Periódico
ISSN: Print - 0975-1483
Online - 0975-1505
Appears in Collections:DCOD - Artigos publicados em revistas científicas

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