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Avicenna Journal of Dental Research، جلد 5، شماره 2، صفحات 0-0
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| عنوان فارسی |
Microbial Contamination of Pumice Powder and Slurry in Dental Laboratories of Hamadan |
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| چکیده فارسی مقاله |
Conclusions According to this study, pumice powder and slurry used in dental laboratories of Hamadan are contaminated. Therefore, the Laboratory staff should be aware of the hazards posed by the presence of pathogens in dental laboratories. Materials and Methods Forty specimens, including 20 pumice powders and 20 pumice slurries were collected from 10 randomly selected dental laboratories and inoculated onto selective and non-selective media in order to count the total colony-forming units (CFU). Isolated fungi and bacteria were identified using Gram-stain and deferential diagnostic tests. Results Results of this study showed 85% contamination rate for pumice powders and 100% for pumice slurries. Frequencies of Gram-positive and Gram-negative bacteria isolated from the powders were 68% and 32% respectively. For the slurries the frequencies were 61% Gram-positive and 39% Gram-negative. Organisms detected in pumice powders composed of Staphylococcus epidermidis, E. coli, Acinetobacter, B. cereus, Enterobacter, Candida, and diphtheroids. Organisms detected in pumice slurries included Staphylococcus epidermidis, E. coli, Citrobacter, S. aureus, Enterobacter, B. cereus, B. proteus, Candida, and diphtheroids. Background Using contaminated pumice in polishing process of dental prostheses may result in cross-contamination of dentists, laboratory technicians, and patients. Objectives This study aimed to determine the presence and level of microbial contaminants in pumice powder and slurry used in dental laboratories of Hamadan city. |
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| کلیدواژه‌های فارسی مقاله |
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| عنوان انگلیسی |
Microbial Contamination of Pumice Powder and Slurry in Dental Laboratories of Hamadan |
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| چکیده انگلیسی مقاله |
Conclusions According to this study, pumice powder and slurry used in dental laboratories of Hamadan are contaminated. Therefore, the Laboratory staff should be aware of the hazards posed by the presence of pathogens in dental laboratories. Materials and Methods Forty specimens, including 20 pumice powders and 20 pumice slurries were collected from 10 randomly selected dental laboratories and inoculated onto selective and non-selective media in order to count the total colony-forming units (CFU). Isolated fungi and bacteria were identified using Gram-stain and deferential diagnostic tests. Results Results of this study showed 85% contamination rate for pumice powders and 100% for pumice slurries. Frequencies of Gram-positive and Gram-negative bacteria isolated from the powders were 68% and 32% respectively. For the slurries the frequencies were 61% Gram-positive and 39% Gram-negative. Organisms detected in pumice powders composed of Staphylococcus epidermidis, E. coli, Acinetobacter, B. cereus, Enterobacter, Candida, and diphtheroids. Organisms detected in pumice slurries included Staphylococcus epidermidis, E. coli, Citrobacter, S. aureus, Enterobacter, B. cereus, B. proteus, Candida, and diphtheroids. Background Using contaminated pumice in polishing process of dental prostheses may result in cross-contamination of dentists, laboratory technicians, and patients. Objectives This study aimed to determine the presence and level of microbial contaminants in pumice powder and slurry used in dental laboratories of Hamadan city. |
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| کلیدواژه‌های انگلیسی مقاله |
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| نویسندگان مقاله |
fariborz vafaee - department of prosthodontics, hamadan university of medical sciences, hamadan, ir iran
pegah radan - department of prosthodontics, hamadan university of medical sciences, hamadan, ir iran
farnaz firouz - department of prosthodontics, hamadan university of medical sciences, hamadan, ir iran
bijan heidari - department of prosthodontics, hamadan university of medical sciences, hamadan, ir iran
alireza izadi - department of prosthodontics, hamadan university of medical sciences, hamadan, ir iran
masoomeh khoshhal - department of periodontology, hamadan university of medical sciences, hamadan, ir iran; department of periodontology, hamadan university of medical sciences, hamadan, ir iran. tel 98-9111361936, fax 98-8138241961
mehdi basami - department of prosthodontics, hamadan university of medical sciences, hamadan, ir iran
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| نشانی اینترنتی |
http://www.avicennajdr.com/index.php?page=article&article_id=19377 |
| فایل مقاله |
فایلی برای مقاله ذخیره نشده است |
| کد مقاله (doi) |
10.17795/ajdr-19377 |
| زبان مقاله منتشر شده |
fa |
| موضوعات مقاله منتشر شده |
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| نوع مقاله منتشر شده |
1 |
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