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KMID : 1812820220050010021
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Journal of Korean Dental Hygiene Science
2022 Volume.5 No. 1 p.21 ~ p.27
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Amount of bacteria over time according to the use of antibacterial and wet wipes behavior
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Han Su-Min
Kim Eun-Ji
Seomoon Hye-Ji
Lim Su-Min
Han Ji-Young
Koong Hwa-Soo
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Abstract
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Background: This study was conducted to analyze the time for re-detection of bacteria after surface disinfection using wet wipes, isopropyl alcohol, and benzalkonium chloride antibacterial tissue and provide standards for reexecution of surface disinfection with wet and antibacterial tissues.
Methods: Seven laptops were wiped with wet tissue and isopropyl alcohol and benzalkonium chloride antibacterial tissues. Test areas were rubbed with a sterile cotton swab at baseline and after 30, 60, and 120 min. After plating on a tryptic soy agar medium, the number of colonies was counted by culturing at 36.5℃ for 24 h.
Results: The average number of bacterial colonies was 5.85 ± 4.33 before isopropyl alcohol wiping and nil after wiping. The average number of bacterial colonies was 12.28 ± 14.67 benzalkonium chloride wiping and nil after wiping. Before wiping with wet wipes, the average number of bacterial colonies on laptop surfaces was 3.42 ± 5.22. Bacteria decreased after wiping with wet wipes but increased again over time.
Conclusions: Wet wipes can temporarily reduce bacteria but are unsuitable for removing bacteria.
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KEYWORD
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Benzalkonium chloride, Isopropyl alcohol, Wet wipes
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