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. 2019 Dec 13;9:19019. doi: 10.1038/s41598-019-55288-3

Figure 7.

Figure 7

Mean optical density (OD) and standard deviation of S. mutans and L. casei cultures following overnight exposure to 1-d (a,b) and 28-d leachates (c,d) of different concentrations of materials. Asterisks indicate significant reduction of OD compared with the positive control (p < 0.010).