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:: Volume 21, Issue 1 (Spring 2003) ::
J Dent Sch GYEAR__, 21(1): 103-109 Back to browse issues page
The rate of bacterial contamination in dental units water supply at Shahid Beheshti Dental School-1999
Ahmad Ghaem Maghami Corresponding Author: Dr. * , Masoume Mehdipour Dr., Hossein Goudarzi Dr.
Prof.
Abstract:   (7370 Views)

Aim: This study was designed to assess the level of gram negative bacterial contamination in water supply of dental units used at Shahid Beheshti University at the year 1999.

Methods & Materials: Water samples were obtained from water syringe lines and high-speed turbin lines of 30 dental units which were initially selected on random manner. All samples were stored in sterile tubes contaning 5 cc nutrient broth followed by an incubation stage on EMB and MacCankey plates for 48 hours at 37°C. bacterial colonies were then counted and compared with suggested limit by ADA.

Results: Sections of first floor had shown. Psedomonas and Staphylococcus contamination were seen in 37.5% of the samples corrected from dental units of surgical wards at first floor while 61.5% of the samples of dental units of restorative wards (2nd floor) had Staphylococcus contam E.coli and Entrococcus contamination were found in samples of or the/ paedo clinic water supply samples in 75% of the cases.

Conclusion: three apeared to be a relationship between the increase in the number of microorganisms and water stagnation on the upper floors of the building. 

J Dent Sch 2003 21(1): 103 

Keywords: Biofilm, dental unit, water supply
     
Type of Study: Original Article | Subject: Special
Received: 2006/09/6
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Ghaem Maghami A, Mehdipour M, Goudarzi H. The rate of bacterial contamination in dental units water supply at Shahid Beheshti Dental School-1999. J Dent Sch. 2003; 21 (1) :103-109
URL: http://jds.sbmu.ac.ir/article-1-727-en.html


Volume 21, Issue 1 (Spring 2003) Back to browse issues page
مجله دانشکده دندانپزشکی دانشگاه علوم پزشکی شهید بهشتی Shahid Beheshti University Dental Journal
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