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Wednesday 17 Feb 2016 - 12:57 Makkah mean time-8-5-1437
Paris, (IINA) - Researchers in France have recently conducted a study on disinfectants used by dentists in their offices, in which they found that the current methods did neither shift nor kill all bacteria in water lines, therefore indicating that the equipment used may never actually be clean, UPI reported.
Researchers tested the cleaners on bacteria, yeasts, and other microbes that form biofilms in water lines and on equipment after moving out of people's mouths during treatment, finding none of them were completely effective on a polymicrobial biofilm.
Biofilms act as protective layers of bacteria that grow over itself and is difficult to remove, although researchers said that there are steps dentists can take to prevent its formation.
"During dental procedures, patients and dentists can be exposed to microorganisms present in the water circulating inside dental units", said Dr. Damien Costa, a researcher at the University of Poitiers. "Infections may occur if this potentially microbiologically contaminated water is inhaled or splashed. We wanted to determine the best way to keep dental lines clean and avoid infection".
Researchers tested Calbenium, Oxygenal 6, and Sterispray, which are disinfectants used by European dentists against biofilms grown in conditions similar to dental water lines, the biofilms contained several different microbes: the bacterium Pseudomonas aeruginosa, the fungus Candida albicans, and the free-living ameoba Vermamoeba vermiformis, which can also carry other bacteria that infect humans.
The researchers reported that all three chemicals killed the fungus, but none was completely effective at clearing entire biofilms.
Since none of the cleaners were fully effective, researchers recommended to use them as a preventive agent instead of using it for cleaning, and to use higher quality water not contaminated by microbes.
AG/IINA
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