Basic Study on Disinfection of Dental Stone Models -Concentration of Potassium Sulfate to Disinfectant Solutions and Surface Roughness of Dental Stone Models-

Abstract

We evaluated concentrations of postassium sulfate added to 2% glutarardehyde and 0.1% sodium hypochlorite solutions to decrease surface roughness of dental stone models caused by immersion in disinfectant solutions.Test results indicated that surface roughness(Ra)of dental stone models immersed in glutarardehyde and sodium hypochlorite solutions containing 1-5% potassium sulfate was decreased.In particular, the optimal concentration of postassium sulfate was two or three percent.