Avaliação da estabilidade de massa e espectroscopia raman de amostras de próteses parciais removíveis a grampos após higienização com vinagre de vinho branco

Abstract

The surfaces of removable partial dentures are considered a feasible environment to colonization of oral microorganisms which may lead to the development of prosthetic stomatitis. Daily use of chemical cleasing agents that do not alter the denture surface and optical properties might favor the patients’ health, once it may turn the prosthesis less susceptible to biofilm formation. Studies show that white wine vinegar to present antifungal effect, it may be an option for cleaning the dentures. The aim of this study was to analyze, in vitro, the effect of the use of white wine vinegar as cleanser solution for the immersion of specimens of removable partial denture by clips (RPDCs) up to a month simulation, analyzing the weight stability and Raman spectroscopy. . To simulate the RPDCs were made 30 specimens composed by cobalt-chrome metal alloy discs included in thermo-polymerized acrylic resins along with artificial acrylic teeth. The specimens were randomly divided into 3 groups (n = 10): distilled water (negative control), white wine vinegar (WWV) and Corega Tabs® (positive control). Before and after the immersion were performed weight stability with analytical electronic balance and the surface composition difference with the Raman spectroscopy. The data were analyzed using ANOVA for repeated measures and Tukey test (p <0.05). After the analyzes, there no found weight variation between the solutions (p<0.05). In Raman spectroscopy, peaks in 2430 cm-1 were observed after the immersion in distilled water, implying a possible chrome carbonate formation. It concludes that the WWV is a promising alternative, but still needed studies to be used as a cleaning solution.