Title: Evaluation of Dental Unit Waterline Disinfection using Glutaraldehyde - Quarternary Ammonium Compound and Sodium Hypochlorite
Authors: Dr Swathi P, Dr Anupama S Gopinathan, Dr Shiji Dinakaran, Dr Aiswarya P
DOI: https://dx.doi.org/10.18535/jmscr/v10i10.17
Abstract
Introduction
An intricate network of narrow-bore tubes called dental unit waterlines (DUWLs) supplies water to all of the dental chair units (DCU) instruments, cup-filler and bowl-rinse outlets. Biofilms are aggregations of microorganisms that adhere, attach and, if in an aqueous environment (pipes, tubes etc) secrete a voluminous protective matrix composed of complex polysaccharides which may additionally incorporate inorganic substances from their environment. The microbial quality standards for potable water varies across the world, with the ADA specifying ≤ 200 CFU /mL and the Centre for Disease Control (CDC) recommending ≤ 500 CFU/mL of aerobic heterotrophic bacteria for DCU output water.(2)
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