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Health concerns of heterotrophic plate count (HPC) bacteria in dental equipment water lines.

Allen, Martin J; Edberg, Stephen C.
Am J Dent; 29(3): 137-8, 2016 Jun.
Inglês | MEDLINE | ID: mdl-27505988
There is an unsubstantiated concern as to the health relevance of HPC (heterotrophic plate count) bacteria in dental equipment waterlines. The American Dental Association (ADA) web site includes guidelines for controlling HPC populations and implies that HPC populations >500 CFU/mL as a "health" benchmark. The world-wide published literature including the United Nations fully examined this situation and concluded that HPC bacteria are not a health risk, but merely a general water quality parameter for all waters including dental water lines. This review provides documentation that the standard measurement of HPC bacteria in waters alone do not pose a health risk and the ADA already provides appropriate practices to minimize HPC bacteria in dental equipment water.