title: Surface roughness of gold alloy castings.
abstract: The present investigation has shown that the surface of gold alloys cast in both a new and probably improved investment and in two commercial gypsum-bonded investments fulfills all conventional clinical requirements as regards retention and precision of the cemented restorations and easy polishability. With a view to retention the sometimes slightly rougher surfaces of castings in the new investment are advantageous.
mesh_terms: D003734:Dental Casting Investment; D003793:Dental Restoration, Permanent / Q000379:methods; D006047:Gold Alloys; D007283:Inlay Casting Wax; D008855:Microscopy, Electron, Scanning; D013499:Surface Properties
chemical_list: D003734:Dental Casting Investment; D006047:Gold Alloys; D007283:Inlay Casting Wax