Abstract
The author studied the affection of the physical properties of a setting time (initial and final setting time), a consistency, a dimensional change and a detail reprodusibility in the zinc oxide-eugenol impression materials added with each amount of an additional agent. The additional agents were the purified water, ethanol for disinfection, white petrolatum and glycerin.
As the results of this study, the author reached the following conclusions.
The purified water and ethanol for disinfection as an additional agent were suggested to be proper one in clinic, for the reason of its regular shortening, a stability of dimention and a evaluation for a detail reprodusibility. But the additional agent to adjust a consistency could not be found.
