Abstract
Bacteriological Safety of Water Filters for Dental Units: Evalutation of the Filtration Action against S. Aureus and E. Coli
Highlights
The safety and control of water for clinical use are of critical importance in dental practice, infact itis needed to cool and irrigate instruments, burs and oral tissues during treatment
Laboratory tests were performed at two different experimental sites with new and used filters and S. aureus and E.coli were taken as indicators for evaluating their efficiency in up to 2 years of operation
The sterilizing efficacy of the filter under test was analyzed towards bacterial loads S.Aureus and E.coli, with known titer using two categories of filters: new and used with different operating times verifying the bacterial load present in the outgoing water, since a contaminated 2 litres solution was previously injected
Summary
The safety and control of water for clinical use are of critical importance in dental practice, infact itis needed to cool and irrigate instruments, burs and oral tissues during treatment. Conclusions: The durability and the efficiency of the filters at different times were positive in controlling cross-contamination and risk of infection during dental procedures. The microbiological quality of water is a serious ecological problem for public health[1]and for medical devices[2] Dental chair units (DCUs) contain integrated systems providing water to cool hard and soft oral tissues and the surfaces of the instruments during dental treatment. The microbiological quality of water used in dental units is crucial for the safety of dental personnel and the requirements of dental patients and may relate to cross - infection during the treatment[3] in immune suppressed patients[4].
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