When making a polysulphide impression for a caste crown, custom trays are usually preferred over stock trays for all of the following reasons except________?

The ability of an alloy to withstand mechanical stresses without permanent deformation is reflected by its________?

Which of the following is correct glass transition temperature of Impression compound?

Titanium casting is done________?

The gold alloys used for casting contain at least.... percent of precious metal according to ADA specification number 5________?

The dental amalgam is most resistant to________?