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MINERVA STOMATOLOGICA

A Journal on Dentistry and Maxillofacial Surgery


Official Journal of the Italian Society of Odontostomatology and Maxillofacial Surgery
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Minerva Stomatologica 2004 May;53(5):273-80

language: Italian

Dental offices and environment quality

Galli M. G., Tesauro M., Consonni M., Moscatelli D., Bianchi A.


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Aim. The aim of this study was to survey, from a microbiological point of view, dental unit water, air and surface quality in public dental offices and in control environments in Milan.
Methods. We studied tap and dental unit water (from fountain, air-water syringe, turbine), at the beginning and at the end of monday and thursday morning activity; air quality with surface air system (SAS) in dental and control offices; handpieces holder, fountain block, arm of the light, dental trolley, inner and outer walls surfaces quality.
Results. Water from the dental unit waterline shows average exceeding the law limits 2-3 fold for total bacteriological counts at 37° and 22°, in all examined points, at the beginning of the working day. There is an improvement in the water contamination at the end of the activity. Pseudomonas aeruginosa is frequently found, total and fecal coliforms are absent, while Legionella pneumophila was found only in one control. Air and surfaces quality is quite good, especially in places with ventilation systems in function.
Conclusion. Dental unit water is the most critical point among those monitored. Water quality has to be improved with specific projects.

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