Abstract
At present many brands of denture retainer materials are on the market. Although they seem to be different from each other in physical and mechanical properties, there are no fundamental criteria for choosing a material. In the present study, therefore, characteristics of four available powder type denture retainer materials were examined through sensuous evaluations such as smell, taste, and cleaning, and observation of physical characteristics such as pH and viscosity. The results were as follows : 1. On sensuous evaluations, Faston and Corega were undesirable from the viewpoint of smell and taste ; Zanfton and Corega were undesirable from the viewpoint of cleaning. 2. On the measurement of pH, Faston indicated acidity, so it was suggested that Faston may affect the oral mucosa. 3. Although viscosity of four denture retainer materials showed considerable variation from each other, appropriate degrees of viscosity for denture retainer materials could not be determined.
