Abstract
This study showed requirements to construct well-adapted restorations with Ni-Cr casting alloys.
(1) The alloy should have a relatively low solid point below 1250°C
(2) The investment material should have small setting expansion and mostly should expand on heating with less deformation.
The low-fusing Ni-Cr alloys studied had a solid point as low as 1030°C, and demonstrated adaptability comparable to that of gold, silver and paradium alloys.
