Application of D-Amino Acids as Biofilm Dispersing Agent in Dental Unit Waterlines

Figure 1

Scheme of the experimental time line (a). Incubation period: DUWLs were incubated with different solutions for 5 days (yellow bar). Flushed: DUWLs were flushed, every other day, with 1.6 L water (blue bar). Flushing water was collected to measure the dispersed biofilms by OD. CFU count: Time point at which water samples were collected for bacterial CFU counts (green bar with arrow). SEM image of biofilm mass on the inner surface of DUWLs (b). Magnification ×2000 (left image); A higher magnification image is shown on the right side.

(a)

(b)