Avaliação da cor e da microdureza de amostras de bases de próteses removíveis após imersão em extrato hidroalcoólico de Punica Granatum Linné

Abstract

treatment for edentulism is given primarily through the use of removable prostheses, due to its low cost, reestablishment of function and pleasant esthetics. The use of prostheses requires specific care for their hygiene, which is fundamental to prevent the development of pathologies in the oral cavity. However, in addition to being effective, the hygienizing substance should not be tissue irritant and should not affect the structure of the prostheses. In this context, the hydroalcoholic extract of Pomegranate (Punica granatum L) has been distinguished by its potent antimicrobial action against the main oral pathogens. This study analyzed, in vitro, the effect of the use of the hydroalcoholic extract of pomegranate as a hygienizing solution for thermopolymerizable base resin specimens after an one-year simulated immersion. 30 samples of thermo-polymerizable acrylic resins with removable prostheses were made. The specimens were randomly distributed into 3 groups (n = 10): distilled water (Negative Control), hydroalcoholic extract of pomegranate at 6.7% and alkaline peroxide with enzyme (Positive Control). Before immersion, and after one year of immersion, microhardness and color analysis were performed to detect possible changes in the different surfaces. The data were analyzed by ANOVA statistical test followed by the Bonferroni post-test, and no statistically significant differences were found in color and microhardness on the surface of denture base resins when compared to their control groups (p>0,05). Thus, immersion of dentures using the sanitizing solution can be an effective hygiene method for the prostheses.