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Giammanco, G.M., Melilli, D., Rallo, A., Pecorella, S., Mammina, C. and Pizzo, G. (2009) Resistance to Disinfection of a Polymicrobial Association Contaminating the Surface of Elastomeric Dental Impressions. New Microbiologica, 32, 167-172.

has been cited by the following article:

• TITLE: Effect of Autoclave Sterilisation on the Dimensional Stability and Tear Strength of Three Silicone Impression Materials

  AUTHORS: Brian J. Millar, Sanjukta Deb

  KEYWORDS: Impressions, Autoclaving, Sterilisation

  JOURNAL NAME: Open Journal of Stomatology, Vol.4 No.12, December 25, 2014

  ABSTRACT: Objectives: There is a risk of spreading infectious material via non-sterile impressions. The aim of this study was to compare the effect of autoclave sterilisation on dimensional stability and tear strength of impression materials. Methods: Twenty-four specimens were produced using a standard ruled test block for each of three impression materials (Affinis, Aquasil and Speedex) to test dimensional stability. Thirty tear strips for each material were prepared for the tear test (ISO 34-1). Specimens were randomly allocated to 3 different groups (autoclaved, disinfected or untreated). A non-contact scanner was used to analyse dimensional change and a universal testing machine was used to determine tear strengths. Results: There were no significant differences in the test dimensions measured for any of the three impression materials following autoclave treatment compared to the disinfected or untreated control groups. The tear strengths were not adversely affected by autoclave sterilisation at 134°C. Conclusion: These addition and condensation-cured silicone impression materials can be steam autoclaved without adverse effects on dimensional accuracy or tear strength.