Abstract:
AIMS:Transmission of microbial pathogens to patients from water in dental units is a concern. To reduce this risk, the decontaminating efficiency of hydrogen peroxide was evaluated. METHODS AND RESULTS:Three percent hydrogen peroxide diluted 1 : 4 in distilled water (contact time 15 min) was used daily to disinfect the waterlines of a pilot unit previously contaminated with Pseudomonas aeruginosa or Staphylococcus aureus. The behaviour of the test bacteria was seen to differ over time. Staph. aureus numbers slowly decreased until only low numbers were recovered, after which the levels remained stable. Ps. aeruginosa abatement was more rapid and the density of the bacteria reached a peak when the circuit was empty. CONCLUSIONS:Staph. aureus and Ps. aeruginosa treated with hydrogen peroxide fell from 6 to 4 log. SIGNIFICANCE AND IMPACT OF THE STUDY:Treatment of dental unit waterlines with hydrogen peroxide was seen to be able to keep the number of the bacteria under control, as long as the treatment was repeated daily.
journal_name
Lett Appl Microbioljournal_title
Letters in applied microbiologyauthors
Zanetti F,De Luca G,Tarlazzi P,Stampi Sdoi
10.1046/j.1472-765x.2003.01378.xsubject
Has Abstractpub_date
2003-01-01 00:00:00pages
201-6issue
3eissn
0266-8254issn
1472-765Xpii
1378journal_volume
37pub_type
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journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1046/j.1472-765x.2000.00714.x
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journal_title:Letters in applied microbiology
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journal_title:Letters in applied microbiology
pub_type: 杂志文章
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journal_title:Letters in applied microbiology
pub_type: 杂志文章
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journal_title:Letters in applied microbiology
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journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1046/j.1472-765x.2001.00894.x
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journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1046/j.1472-765x.2002.01191.x
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journal_title:Letters in applied microbiology
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