Volume 12, Issue 4 (Scientific Journal of Hamadan University of Medical Sciences-Winter 2006)                   Avicenna J Clin Med 2006, 12(4): 55-59 | Back to browse issues page

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Eskandarloo A, Yousefi Mashouf R. The Evaluation of Bacterial Contamination of Active Radiography Apparatus in Dental Centers of Hamadan City. Avicenna J Clin Med 2006; 12 (4) :55-59
URL: http://sjh.umsha.ac.ir/article-1-520-en.html
1- , eskandarlo@umsha.ac.ir
Abstract:   (4219 Views)

Introduction & Objective: During the most dental procedures, contamination of devices with blood, saliva and other body fluids, which is the most important factor for transmission of infectious diseases, is inevitable. Therefore principles of infection control should be carefully considered in the dentistry. The purpose of this study was the evaluation of bacterial contamination of active radiographic apparatus in dental centers of Hamadan city in year 2003.

Materials & Methods : In this cross-sectional study 37 radiographic apparatus in dental centers of Hamadan were evaluated. Samples were collected from four area (25 cm2 each) that are frequently touched by dentists, personnel, etc. using a swab. The swab was inserted into the carrier media containing thioglycolate, a smear was obtained from the solution and remaining solution was cultured in blood agar. Smear and blood agar cultures were transferred to microbiology lab to determine bacterial contamination level as well as bacterial typing. According to WHO criteria the area which has more than 10 microorganism/cm2 is considered as contaminated.

Results: It was found that 13 of radiographic apparatus(35%) were contaminated, the most frequent bacterial type detected in this study was micrococcus (75.7%) and the least were enterobacter and nocardia (2.7% each). Antiseptic materials used for decontamination of the devices were as follow : Alcohol (43.2%) , Deconex (32.4%) , Micro10 (18.9%) , Savlon (10.8%) , Hypochlorid (5.4%) , Glutaraldehyde (2.7%).

Conclusion: Based on the results (35% bacterial contamination) it can be concluded that careful performance of infection control principles, daily decontamination of devices and offering periodic instructions for dental personnel are essential.

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Type of Study: Original | Subject: Other Clinical Specialties

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