Evaluation of ultrasonic scaling unit waterline contamination after use of chlorine dioxide mouthrinse lavage

Journal of Periodontology
M Robert Wirthlin, J R Marshall GW

Abstract

An infection control problem in dental operatories which is not fully controlled is waterline contamination by heterotrophic mesophilic bacteria. These bacteria are present in water supplies as a planktonic phase and adhere to the lumen of tubings as a biofilm comprised of their external cell surface glycocalyx and by production of extracellular carbohydrate polymers. The adherent film is most difficult to remove. The accumulated planktonic phase can be reduced significantly by flushing water from the lines before use in patient treatment, but will return when the equipment is idle through the accumulation of more planktonic phase and by slough of the biofilm surface-adsorbed phase not yet enmeshed in the carbohydrate matrix. Chlorine dioxide has antimicrobial activity against many bacteria, spores, and viruses. It is used in water supply treatment as a disinfectant and slime preventive and has an advantage over chlorine in that carcinogenic trihalomethanes are not generated. This study compared use of phosphate buffer-stabilized chlorine dioxide (0.1%) mouthrinse as a lavage in ultrasonic dental scaler units with the use of tap water as a control. Sterile water flushed through the units onto heterotrophic plate count (HPC) sam...Continue Reading

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Citations

Dec 20, 2003·Journal of Periodontology·M Robert WirthlinRandal W Rowland
Oct 19, 2011·Future Microbiology·Mary J O'DonnellDavid C Coleman
Sep 30, 2008·Journal of Dentistry·Ryo NishikioriMasayuki Okazaki
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Jan 22, 2008·International Journal of Dental Hygiene·E WatanabeIy Ito
Aug 23, 2012·Periodontology 2000·Jørgen Slots
Feb 2, 2010·Journal of Endodontics·Funda Kont CobankaraArslan Terlemez
Sep 19, 2020·Journal of Oral Microbiology·Mahdieh-Sadat MoosaviMaryam Ansari

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