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CFU counts of two-day biofilms on composites (mean ± SD; n = 6): (A) P. gingivalis; (B) P. intermedia; (C) P. nigrescens; (D) A. actinomycetemcomitans; (E) F. nucleatum; and (F) E. faecalis. Note the log scale for the y-axis. CFU counts on composite containing DMAHDM were nearly three orders of magnitude lower than composite without DMAHDM. Bars with dissimilar letters are significantly different from each other (p < 0.05). (Reproduced with permission from [120]. Elsevier, 2016.)
