Figure 3 | International Journal of Oral Science

Figure 3

From: One-year water-ageing of calcium phosphate composite containing nano-silver and quaternary ammonium to inhibit biofilms

Figure 3

Quantification of biofilm viability. (a) MTT metabolic activity; (b) lactic acid production of 2-day biofilms on the composites after being water-aged for 1 day to 12 months. Each value represents the mean±standard deviation; n=6. In each plot, values with dissimilar letters are significantly different from each other (P<0.05). Water-ageing for 12 months did not reduce the antibacterial properties of the composite containing QADM and NAg (P>0.1). MTT, 3-[4,5–dimethylthiazol–2–yl]-2,5-diphenyltetrazolium bromide; NACP, nanoparticles of amorphous calcium phosphate; NAg, nanoparticles of silver; QADM, quaternary ammonium dimethacrylate.

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