Bacterial contamination in irreversible hydrocolloid impression material and gingival retraction cord.

Abstract

This study tested two dental materials in factory-sealed containers for the presence of bacteria that may be a source of infection. Twenty samples of two dental materials found to have contamination in a pilot study were taken from unopened containers using a sterile technique. The samples were inoculated onto chocolate agar plates and into thioglycolate… (More)

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