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Document Type |
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Article In Journal |
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Document Title |
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An in-vitro study of the effects of various An in-vitro study of the effects of various |
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Document Language |
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English |
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Abstract |
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Objectives: This study assessed the effect of various disinfectants on several
contaminated prosthetic and surface-covering materials. Methods: The efficacy of 6
disinfectants used at King Abdul-Aziz University, Jeddah, Kingdom of Saudi Arabia,
on prosthetic and surface-covering materials, irreversible hydrocolloid and elastomer
impression materials, wax, acrylic resin, metal, bench-covering material, and floor
carpet. These materials were contaminated with Pseudomonas aeruginosa, Escherichia
coli, and Staphylococcus aureus. Counts of viable bacteria on the materials was
determined by incubated replica plating on blood agar plates at 5 minute intervals. A
3 way non parametric analysis of variance was used to evaluate the main effects and
interactions of the disinfectants, bacteria, and materials.
Results: Statistical analysis showed that material, type of disinfectant, and
interactions between material and bacteria were significant. Carpet has a significantly
higher bacterial count than many other items (P < 0.0001) such as acrylic resin,
irreversible hydrocolloid, chrome- cobalt casting, and laminated bench surfaces.
Conclusions: Quaternary ammonia compound and the tertiary ammonia phenol were
the most effective disinfectants. Efficacy of the disinfectant depends partly on the
bacteria used for contamination. Carpets in dental clinics showed high potential to
retain microorganisms. |
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ISSN |
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0 |
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Journal Name |
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Saudi Medical Journal |
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Volume |
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23 |
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Issue Number |
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4 |
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Publishing Year |
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2002 AH
2002 AD |
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Article Type |
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Article |
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Added Date |
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Saturday, June 21, 2008 |
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Researchers
| سلمى باحنان | Bahannan, Salma | Investigator | Doctorate | Sbahnnan@kau.edu.sa |
| مها عبدالسلام | Abdel-Salam, Maha | Researcher | Doctorate | |
|