Violation
Voids in a gypsum cast are most likely the result of
using a hydrophilized addition silicone
high surface tension of an irreversible hydrocolloid
low surface tension of a silicone impression material
spraying a surfactant on the impression
Voids in a gypsum cast are most likely the result of
using a hydrophilized addition silicone
high surface tension of an irreversible hydrocolloid
low surface tension of a silicone impression material
spraying a surfactant on the impression