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The antimicrobial activity of extract from Moringa oleifera leaves. Streptococcus mutans was cultured with or without distilled water (DW) and ethanol (EtOH) extracts, and the growth of S. mutans was measured using spectrophotometer at 660 nm wavelength. Asterisks (*) represent statistically significant differences compared with the control group (P <0.05). DW, distilled water; EtOH, ethanol.
