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

Figure 5

Bacterial contamination in DCU output water collected every 2-3 days for 4 weeks after the DUWLs were flushed with distilled water (control), D-amino acids mixture (D-amino acids, 10 mM each), or 0.1 M hydrochloric acid (HCl) for 5 days. A treatment of the DUWLs with D-amino acids reduced bacterial contamination in dental unit output water more than was seen in the control and HCl group.