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. Author manuscript; available in PMC: 2015 Apr 1.
Published in final edited form as: Dent Mater. 2014 Feb 15;30(4):433–441. doi: 10.1016/j.dental.2014.01.002

Fig. 6.

Fig. 6

Antibacterial efficacy of bonding agent vs. quaternary amine surface charge density: (A) Bacteria early-attachment at 4 hours, (B) 2-day biofilm CFU (mean ± sd; n = 6). Bonding agent charge density was strongly inversely-proportional to bacteria early-attachment and biofilm CFU. The binding agent contained DMAHDM at different mass fractions to obtain a series of charge densities.