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Biological monitoring of sterilisation procedures in dental offices in Venezuela

Abstract number: P1118

Bello T., Lodato A., Arango C., Marrero C., de Waard J.H., Guevara L.A.

Objective: To evaluate the incidence of sterilisation failures in a convenience sample of dental offices in Venezuela.

Methods: 284 strips with spores of Geobacillus stearothermophilus and Bacillus atrophaeus and an evaluation form were distributed to dentists interested in participating in this study. The dentists mailed the processed strips and the evaluation form to the laboratory for culture.

Results: Tests were submitted from 108 dental offices. The sterilisation methods were convection dry heat (93%) and steam under pressure (7%). A total of 32.4% sterilisation failures were detected. Convection dry heat failed with 32% (32 out 100) and steam sterilisation with 37.5% (3 out of 8)

Conclusion: A high percentage of failures occurred in the sterilisation of instruments reprocessed for the use in patient treatment. Steam under pressure failed more often than convection dry heat sterilisation. These results show the need for official guidelines to be developed by Venezuelan health authorities and to make it compulsory for dentists to biologically verify sterilisation processes. When corrective action is taken, routine use of spore strips for quality control could increases patient safety.

Session Details

Date: 19/04/2008
Time: 00:00-00:00
Session name: 18th European Congress of Clinical Microbiology and Infectious Diseases
Subject:
Location: Barcelona, Spain
Presentation type:
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