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Immersion disinfection of irreversible hydrocolloid impressions. Part 1: Microbiology.

Authors
  • Schwartz, R S1
  • Bradley, D V Jr
  • Hilton, T J
  • Kruse, S K
  • 1 University of Texas Health Science Center, San Antonio.
Type
Published Article
Journal
The International journal of prosthodontics
Publication Date
1994
Volume
7
Issue
5
Pages
418–423
Identifiers
PMID: 7802909
Source
Medline
License
Unknown

Abstract

This study evaluated the effectiveness of four disinfectants for irreversible hydrocolloid impressions. Impressions were made of a sterile metal model of the maxillary arch that had been contaminated with one of the following bacteria: Staphylococcus aureus, Salmonella choleraesuis, Pseudomonas aeruginosa, Mycobacterium bovis, or Bacillus subtilis. The impressions were cultured before and after immersion in one of the following disinfectants: lodofive, OMC II, 0.525% sodium hypochlorite, or Alcide LD. Alcide LD achieved a 4-log10 (99.99%) or greater reduction in colony forming units for all five organisms plus mixed oral flora. Sodium hypochlorite achieved a 4-log10 reduction in three of the five organisms and mixed oral flora. Iodofive and OMC II were ineffective against all test organisms and mixed oral flora.

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