Problematik der Keimbelastung wasserführender Dentaleinheiten in der Universitätsmedizin Göttingen unter besonderer Berücksichtigung von Legionella pneumophila - Bestandsaufnahme und Möglichkeiten der Keimreduzierung

Problems of the germ load of water-leading dental units in the university medicine Goettingen under special consideration of Legionella pneumophila - stock taking and possibilities of the germ reduction

von Niklas Muschinsky
Dissertation
Datum der mündl. Prüfung:2014-10-28
Erschienen:2014-10-16
Betreuer:PD Dr. Sabine Sennhenn-Kirchner
Gutachter:Prof. Dr. Utz Reichard
Gutachter:Prof. Dr. Martin Oppermann
Zum Verlinken/Zitieren: http://dx.doi.org/10.53846/goediss-4723

 

 

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Zusammenfassung

Englisch

A total of 137 water samples were taken from 95 dental treatment units and additionally eight samples from the in-house water system directly before entry into the dental unit and were used to the calculation of the microbial germ load. The total bacterial counts of Legionella pneumophila in the mixed water samples varied considerably. In the samples for the detection of Legionella species in 100 ml of the values varied from 0 to 30,000 cfu. Of the 137 water samples 70 were contaminated with L. pneumophila and 3 with Pseudomonas aeruginosa. In any case E.coli could be proved. From the water samples of the in-house water system L. pneumophila concentrations between 140-5,400 cfu/100 ml water could be detected.
Keywords: dental treatment unit; cooling water system; microbial contamination; Legionella pneumophila
 
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