Fig. 2From: Marginal gap and internal fit of 3D printed versus milled monolithic zirconia crownsFabrication of silicone replica. a Low viscosity silicone impression material was injected in the fitting surface of the crown and then fitted to the epoxy die. b Crown was removed, and the low viscosity impression remains attached to the die. c After the putty was added, the replica was removed and cut buccolingually as in the figure, then it was cut mesiodistallyBack to article page