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Revista de Odontologia da Universidade de São Paulo

Print version ISSN 0103-0663

Abstract

ALVES-REZENDE, Maria Cristina Rosifini  and  LORENZATO, Fábio. Wettability of a polyether impression material - adverse effects of spray disinfection. Rev Odontol Univ São Paulo [online]. 1999, vol.13, n.4, pp. 363-367. ISSN 0103-0663.  http://dx.doi.org/10.1590/S0103-06631999000400008.

Impressions carried out in the dental office are potential contamination pathways. The aim of this paper was to evaluate the effects of spray disinfection on the wetting of polyether material (Impregum F) by stones. Three kinds of stones (Herostone, Durone and Polirock) and two disinfectant solutions (2% glutaraldehyde and 1% hypochlorite) were used. The impressions were submitted to spray disinfection, and the contact angles between them and their respective casts were measured. The smaller the angle, the better the adaptation of the stone to the polyether material. No adverse effects were observed with the two disinfectant solutions. Durone presented the best results.

Keywords : Disinfection; Aerosols; Wettability.

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