ArticleBrazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica2020
Antimicrobial activity and toxicity of glass ionomer cement containing an essential oil.
Article in Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Exploring Thymol's Cytocompatibility and Potential Selective Cytotoxicity in Human Primary Gingival Fibroblasts and Pharyngeal Carcinoma Cells: An In Vitro and In Ovo Investigation.Dentistry journal · 2026Article
- Nano-chitosan modified restorative materials suppress Streptococcus mutans biofilm and virulence gene expression.AMB Express · 2026Article
- Lights and Shadows of Essential Oil-Derived Compounds: Antimicrobial and Anti-Inflammatory Properties of Eugenol, Thymol, Cinnamaldehyde, and Carvacrol.Current issues in molecular biology · 2025Review
- Natural compounds: new therapeutic approach for inhibition ofFrontiers in pharmacology · 2025Review
- Organic antibacterial modifications of high-viscosity glass ionomer cement for atraumatic restorative treatment: A review.The Japanese dental science review · 2024Review
- Toxicity of bioceramic and resinous endodontic sealers using an alternative animal model:Journal of conservative dentistry : JCDArticle
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Authors and funding
6 authors.
Funding
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Abstract
The aim of this study was to evaluate the antimicrobial activity and toxicity of glass ionomer cement (GIC) modified with 5-methyl-2-(1-methylethyl)phenol (thymol) against Streptococcus mutans in silico and in vitro. The antimicrobial activity of thymol on GIC modified with concentrations of 2% (GIC-2) and 4% (GIC-4) was evaluated in a model of planktonic cell biofilm using agar diffusion test, minimum inhibitory concentration (MIC), minimum bactericidal concentration (MBC), dynamic biofilm (continuous flow cell parallel), and bacterial kinetics. Conventional GIC (GIC-0) was used as a control. Thymol toxicity was evaluated in Artemia salina and in silico using Osiris® software. Differences between groups were estimated by analysis of variance, followed by Tukey post hoc test, with a 5% significance level. The results of the agar diffusion test between groups were not significantly different (P≥0.05). Thymol had potential bacteriostatic and bactericidal activity against Streptococcus mutans with respect to planktonic growth, with MIC of 100 µg/mL and MBC of 400 µg/mL. The groups GIC-0, GIC-2, and GIC-4 reduced the biofilm by approximately 10, 85, and 95%, respectively. Bacterial kinetics showed efficiency of the modified GICs for up to 96 h. GIC with thymol was effective against S. mutans, with significant inhibition of the biofilms. Analyses in silico and using Artemia salina resulted in no relevant toxicity, suggesting potential for use in humans. GIC-2 was effective against S. mutans biofilm, with decreased cell viability.
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