Abstract
The dimensional changes of 20 products of alginate impression materials in viral disinfectant solutions (0.1〜1% sodium hypochrolite, 2% potentiated glutaraldehyde, 25〜70% ethyl alcohol and 0.07% Povidone-Iodine) were measured, and the optimal disinfection treatment was determined with respect to the dimensional stability of alginate impression materials common to the products. The immersion of alginate impressions in 0.07% Povidone-Iodine solution for 10 minutes is optimal as a general disinfection treatment, and the immersion in 0.5% sodium hypochrolite solution for 15 minutes is suitable in the case of heavy contamination.
