Academic journal article Iranian Journal of Public Health

Prevalence of Bacterial Contamination in Waterlines of Hamadan Dentistry School Units and Drinking Water Supply of Local Area

Academic journal article Iranian Journal of Public Health

Prevalence of Bacterial Contamination in Waterlines of Hamadan Dentistry School Units and Drinking Water Supply of Local Area

Article excerpt

Background: The purpose of this study was to evaluate the bacterial contamination and biofilms formation of waterlines of dentistry units at dental faculty of in Hamadan University of Medical Sciences and drinking water sources contamina- tion of Hamadan city.

Methods: In this cross-sectional study, overall 114 internal and external water samples from dental units in the different department of dentistry faculty and simultaneously 10 drink- ing water samples of city were selected to assess microbial contamination in water sources. Samples were taken based on active dental units and divided for 6 units at 3 times in the working day in (8, 10 and 12 o'clock of day), 50 ml of water sample were taken before flashing and 50 ml after flashing were collected in sterile polyethylene container. Samples were transported in closed sterile containers to microbiology la- boratory of Hamadan University of Medical Sciences and cultured in convenient media cultures. Colony count forming units and bacterial isolated were also detected by differential tests. Data was gathered through a questionnaire and ana- lyzed using Men-vitni and SPSS 16 software.

Results: Of 114 cultured samples from waterlines of dentis- try units, 41 positive cultures (35.9%) were obtained. From 41 positive cultures, 21 bacteria species and fungi (51.2%) were isolated. The most important gram-positive bacteria were as follow: Micrococci leutus (47. …

Search by... Author
Show... All Results Primary Sources Peer-reviewed

Oops!

An unknown error has occurred. Please click the button below to reload the page. If the problem persists, please try again in a little while.