[Contribution on disinfection of dental impressions]

The effectiveness of various measures of disinfection with stomatological impressions had microbiologically been tested. The most efficient reduction of the number of germs could be stated after a five minutes influence of 0.5% commercial solution of peracetic acid on calcinate impressions. Gargling by Sol. chlorhexidini SR before taking the impression and a 60 minutes formaldehyde gasification of plaster casts also resulted in an essential reduction of the number of germs, too.