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:: Volume 16, Issue 3 (jrds 2019) ::
J Res Dent Sci 2019, 16(3): 209-201 Back to browse issues page
Frequency evaluation of Pseudomonas SPP contamination in the dental unit water line system at Mashhad dental school
Fatemeh Khorakian , Taraneh Movahhed , Sedighe Karbasi , Sare Tafaghod Nezafat , Lida Bahramian *
, Bahramianl@mums.ac.ir
Abstract:   (3917 Views)
Background and aim: One of the well-known bacteria in dental unit water contamination is Pseudomonas aueroginosa. The aim of the present study was to evaluate the amount of Pseudomonas aeruginosa species infection in the dental unit water samples of Dental Faculty of Mashhad University of Medical Sciences.
Material and methods: Water samples collected randomly from the turbines of 10% of the active dental units in Mashhad Dental Faculty. Samples were collected at three time points including beginning of the day prior flushing, beginning of day after 2 min flushing, and middle of day after 20 sec flushing. Data analyzed with SPSS version 20 software using two-way ANOVA test and 95% of confidence interval.
Results: All samples were infected at the first time point. At the beginning of the day prior flushing, the water contamination was higher than ADA standard in all departments except periodontology and operative dentistry. Water contamination decreased significantly after flushing at the beginning of day and middle of day measurements (P-value < 0.001). However, no significant difference was observed between beginning of day after flushing and middle of day samples.
Conclusion: High bacterial infection was found in dental unit water samples of Mashhad Dental Faculty regarding P. aeruginosa bacteria. Flushing was an effective measure to reduce the bacterial count of dental units.
 
Keywords: Pseudomonas aeruginosa, Bacterial biofilm, CFU, Dental Unit
Full-Text [PDF 326 kb]   (1700 Downloads)    
Type of Study: Review article | Subject: Dental EDu
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Khorakian F, Movahhed T, Karbasi S, Tafaghod Nezafat S, Bahramian L. Frequency evaluation of Pseudomonas SPP contamination in the dental unit water line system at Mashhad dental school. J Res Dent Sci 2019; 16 (3) :209-201
URL: http://jrds.ir/article-1-1061-en.html


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Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Volume 16, Issue 3 (jrds 2019) Back to browse issues page
مجله تحقیق در علوم دندانپزشکی Res Dent Sci
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