Hydroalcoholic Extract of Eugenia uniflora as Denture Disinfectant: Antimicrobial Activity and Effect on the Physical Properties of Polymethylmethacrylate

Abstract

To the moment, there is no ideal substance for home-based denture disinfection. This study assessed in vitro the antimicrobial effect of the hydroalcoholic extract of Eugenia uniflora and the effect on the physical properties of denture polymethylmethacrylate (PMMA). Candida albicans, Staphylococcus aureus, and Klebsiella oxytoca were isolated from samples of saliva collected from denture wearers. The extracts were produced in three concentrations, according to the Brazilian Pharmacopeia. One hundred eighty-eight disc-shaped specimens of thermopolymerizable PMMA were prepared and randomly allocated to five treatment groups: sterile saline solution (0.85%; control); chlorhexidine digluconate (0.2%); and hydroalcoholic extract of E. uniflora (0.2%, 0.8%, and 1.16%). The specimens were disinfected for 8 HIGHLIGHTS  The hydroalcoholic extract of Eugenia uniflora presents antimicrobial potential  Microbial adherence is affected by the hydroalcoholic extract of Eugenia uniflora  Surface roughness of the PMMA is not affected by the extract of Eugenia uniflora  Color change may require different application of the extract of Eugenia uniflora. 2 Ferrari, D.O.; et al.

Antibacterial and Cytotoxic Activities of Copper-Functionalized Silsesquioxane 3-n-Propylpyridinium Chloride

“…These plates were incubated under microaerophilic conditions for 24 h at 35 ± 0.5°C. For Escherichia coli (ATCC 25,925) and Staphylococcus aureus (ATCC 25,923), the assays were performed in sterile Müeller-Hinton agar and under aerobic conditions [18]. The zone of growth inhibition was measured in millimeters.…”