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CLEANING AND MICROBIAL KILLING IN THE MIELE G7781 DENTAL DISINFECTOR (STUDY #OM 94-06-21)
By Chris H. Miller, PhD
Professor of Oral Microbiology
Principal Investigator
Indiana University, School of Dentistry
OBJECTIVE
The objective of this study was to determine if the Miele G7781 Dental Disinfector can remove blood and kill microorganisms (Staphylococcus aureus, Salmonella choleraesuis, Pseudomonas aeruginosa) present on dental instruments after a washing cycle that includes 10 min at 93ºC.
RESULTS
With Staphylococcus aureus (not dried before processing through the washer), no live bacteria or traces of blood were detected after any of the 3 runs…
With Staphylococcus aureus (dried before processing through the washer), no live bacteria or traces of blood were detected after any of the 3 runs…
With Salmonella choleraesuis (not dried before processing through the washer), no live bacteria or traces of blood were detected after any of the 3 runs…
With Salmonella choleraesuis (dried before processing through the washer), no live bacteria or traces of blood were detected in any of the 3 runs…
With Pseudomonas aeruginosa (dried before processing through the washer), no live bacteria or traces of blood were detected after any of the 3 runs…
CONCLUSIONS
…It is the opinion of the principal investigator that based upon the results of this study the test washer achieves “hospital level” disinfection
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