[An evaluation of the antibacterial effectiveness of bisdequalinium acetate and sodium hypochlorite]

The antimicrobial effectiveness of sodium hypochlorite and bis-dequalinium acetate was evaluated in vitro using three different microorganisms. The solutions were prepared in various concentrations and microorganisms were exposed to these solutions for 5, 10, 15 min. then placed into a culture medium, incubated and determined the presence or absence of growth. These results were compared with those obtained with phenol. The following conclusions were drawn from this study: 1. Of the solutions tested Bis-dequalinium acetate was the most effective antimicrobial agent. And 1.25/1000 Bis-dequalinium acetate is appropriate for the clinical use. 2. Sodium Hypochlorite is the least effective compared with Bis-dequalinium acetate and phenol. 2/100 NaOCl is agreeable for the clinical use. 3. Normal saline exhibits no antimicrobial properties.