Objective: Endodontic infections are treated with a root canal; one of the stages involves using an irrigation solution to eliminate microorganisms.Sodium hypochlorite (NaOCl) is an irrigation solution used to eliminate Fusobacterium nucleatum, the common cause of primary endodonticinfections. However, this material is synthetic and can cause side effects and inflammation of the periapical tissues. Thus, an irrigation solution, suchas xanthorrhizol, which is made of natural ingredients, is required. However, xanthorrhizol’s antibacterial effect against F. nucleatum has never beenassessed. Thus, this study aimed to analyze the effect of xanthorrhizol, derived from Curcuma xanthorrhiza Roxb., against F. nucleatum ATCC 25586biofilm.Methods: The methylthiazol tetrazolium (MTT) assay test and colony count test were performed to assess F. nucleatum eradication after exposure toxanthorrhizol at various concentrations (0.5%, 0.75%, 1%, 1.25%, and 1.5%) and 2.5% NaOCl, which was used as positive control.Results: Significant differences were observed in terms of cell viability after treatment with xanthorrhizol at concentrations of 1.25% versus 0.5%,0.75%, and 1%. The MTT assay test was used to evaluate cell viability in the biofilm and cell metabolism activities. Results showed no significantdifferences in terms of efficacy between xanthorrhizol at concentrations of 1.25% and 1.5%, which are considered effective against F. nucleatum, and2.5% NaOCl (p>0.05).Conclusion: The effect of xanthorrhizol at concentrations of 1.25% and 1.5% against F. nucleatum is similar to that of 2.5% NaOCl.
Objective: The objective of this study was to compare the potential mutagenicity of resin-, silicone-, and bioceramic-based sealers on proteinexpression in human lymphocytes. There has been limited research on resin-, silicone-, and bioceramic-based sealers effects on protein expressionin lymphocytes.Methods: Nine samples of each sealer were incubated in 2 mL human blood for 1, 3, and 7 days. Then, the isolated lymphocytes are observed forprotein separation by electrophoresis method. Profile of protein bands observed and data were analyzed statistically by Kruskal–Wallis and post hocMann–Whitney.Results: Although no statistically significant differences in protein bands were observed among the resin-, silicone-, and bioceramic-based sealers(p=0.111), there was a statistically significant difference between the resin- and silicone-based sealers on the 1st day (p=0.046) and 3rd day (p=0.046)and between the silicone- and bioceramic-based sealers on the 1st day (p=0.046). Thus, the present study shows that there were differences in thepotential mutagenicity on the 1st day; resin was potentially more mutagenic followed by bioceramic and silicone. On the 3rd and 7th days, bioceramicwas potentially more mutagenic followed by resin and silicone.Conclusion: The manuscript describes the study in detail and concludes that resin was potentially more mutagenic followed by bioceramic- andsilicone-based sealers.
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