Composition Analysis and Inhibitory Effect of Sterculia lychnophora against Biofilm Formation by Streptococcus mutans

Figure 4

Scanning electron microscopy of S. mutans biofilms grown in the presence of ethanol extract of S. lychnophora: (a) control, (b) 0.01, (c) 0.02, (d) 0.03, and (e) 0.04 mg/mL extract and (f) positive control (0.1% NaF), scale bar = 10 μm.

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