ComparisonoftheActiDes-BlueandCARELAHYDRO-DES technology for the sanitation of contaminated cooling water systems in dental units Vergleichende Untersuchung des ActiDes-Blue- und des CARELA HYDRO-DES Verfahrens zur Sanierung kontaminierter Kühlwassersysteme von Dentaleinheiten

Background:Thehygienic-microbiologicalcontrolof6dentalunitsbeing in use for the past 16 years revealed a significantly increased microbial 3 nung"), the commercially available production system ActiDes, producing on-site ActiDes-Blue which is based on hypochlorous acid (HOCl) and generated by anodic oxidation, was investigated. 1 Institute of Hygiene and Environmental Medicine, Method: Water samples from the 6 contaminated dental units were examined for the total number of colony forming units (cfu), contamin-