Author/Authors :
Ajami, B , Ghazvini, K Department of Mycobacteriology - Ghaem Hospital , Movahhed, T Department of Pediatric Dentistry - Dental School , Ariaee, N Bu-Ali Research Center - Bu-Ali Research Institute , Shakeri, MT Department Community Medicine and Health - School of Medicine , Makarem, S Student of Dental School - Mashhad University of Medical Sciences, Mashhad, Iran
Abstract :
Background: Dental unit waterline system is considered potential source for contamination with Legionella
species. The aim of this study was to determine if contamination of a dental unit water line system by Legionella
pneumophila serogroup1 in the Mashhad School of Dentistry occurred in 2009.
Methods: A total of 52 dental units were selected from all clinical departments of the Mashhad School of Dentistry.
Samples of water were collected from outlets of water/air spray, high-speed dental hand pieces and water
cup fillers. Samples were tested via the ELISA method.
Results: At the beginning of the work day, a total of 36.1 percent of dental units were contaminated by Legionella
pneumophila serogroup 1.
Conclusion: Infection control of the dental unit water line system regarding legionella in the Mashhad School of
Dentistry is a challenge and engineering controls should be used in contaminated clinics.
Keywords :
Legionella , Dental unit water line system , Contamination , Iran
