Determination of Minimum Inhibitory Concentration (MIC) two plant extract on cariogenic streptococci

Background and Aims: Tooth decay has high prevalence in the world. The use of plant material for the prevention and treatment of this disease for various reasons is considered, including the increasing resistance of bacteria to antibiotics, the high cost and adverse effects of some chemicals used in dentistry. This study was performed aimed to determine the antimicrobial effect of alcoholic extract of Pepper (Capsicum annuum), eggplant skin and cap on cariogenic bacteria. Materials and Methods: In this study, the antimicrobial activity of ethanol extract of Capsicum annuum, eggplant skin and cap on the cariogenic streptococci, including Streptococcus mutans, Streptococcus sobrinus, and Streptococcus sanguis by method of the microtitre plate for MIC (Minimum Inhibitor Concentration) Was performed. Result was analysed by one-way analysis of variance by Prism 5 Graph Pad software. Results: MIC (Minimum Inhibitory Concentration) for Capsicum annuum and eggplant skin for Streptococcus mutans 250 mg/ml (SD=0.052) and for Streptococcus sobrinus and Streptococcus sanguis were getting 125 mg/ml (SD=0.027) and the cap Eggplant for Streptococcus mutans and Streptococcus sobrinus 500 mg/ml (SD=0) and for S. sanguis were getting 125 mg / ml (SD=0.159). Conclusion: This study showed that herbal extracts of Capsicum annuum and eggplant skin and cap have beneficially antimicrobial effects on all three strains of cariogenic bacteria