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Effect of Indonesia Medical Plants Essential Oils on Streptococcus Mutans Biofilm
Essential oil’s componenet such as menthol and eucalyptol were already used as dental plague inhibitors. In searching of potential dental plaque inhibitor from natural products, a study to explore the potency of essential oils extracted from several Indonesia medicinal plants against planktonic growth and biofilm adherence of S. Mutans was performed. A total of 14 essential oils from some selected Indonesianmedicinal plants were extracted by steam – hydro distillation. Antibacterial assay was performed against S. Mutans by micro dilution technique on nutrient broth. Biofilm formation inhibition assay was conducted on a flexible U-bottom 96-wells PVC micro by using BHI enriched with sucrose 2% at 36.6⁰C for 18-24 h. After astaining with 1% crystal violet, the optical density was read at 595 mm. A mouthwash commercial product containing essential oil component was used as a positive control. Result showed that the essential oils of C. Sintoc exhibited the highest blofilm formation inhibition (IC50 = 0.005%), and Z. Officinale showed the highest biofilm degradition with EC50 value of 0.013%. Both were active against bacterial planktonic growth but C.sintoc showed lower MIC50 value (0.%) in comparison to Z. Officinale (0.06%). Meantime, C ciratus was showed promising antibacterail and antibiofilm activities with MIC90 value of 0.06%, MBC 0.6%, IC50 0.008% and antibiofilm activites with MIC 90 value value of 0.06%, MBC 0.6%, IC50 0.008% and EC50 0.026%. It is concluded that the essential oils C. Citratus Z. Officinale and C. Sintoc are potential to be developed as dental plaque inhibitors.
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