Evaluation of gram negative bacterial contamination in dental unit water supplies in a university clinic in Tabriz, Iran

Firoz Pouralibaba, Esrafil Balaei & Atabak Kashefimehr
Background and aims. Bacterial contamination of dental unit water supplies (DUWS) has attracted a lot of attention in recent years due to the emergence of serious infections in susceptible dental patients. The aim of the present study was to evaluate the presence of gram-negative bacterial contamination in DUWS at Tabriz University of Medical Sciences Faculty of Dentistry. Materials and methods. This descriptive study was carried out on 51 active dental units in different departments. Contamination...