title: Hygroscopic expansion in the upper and lower parts of the casting ring.
mesh_terms: D003734:Dental Casting Investment; D003735:Dental Casting Technique / Q000295:instrumentation*; D013499:Surface Properties; D014867:Water; D014885:Waxes
chemical_list: D003734:Dental Casting Investment; D014885:Waxes; D014867:Water