Heat-cured polymerized PMMA specimens A and B were
processed by an indirect technique. Impression of the CAD
CAM die was made with polyvinyl siloxane (putty consistency;
Virtual Refill, Ivoclar Vivadent). Type 4 stone cast (Ultrarock
, Kalabhai, India) was made from the impression. The
cast obtained was used to make the wax patterns. The wax patterns
were made over the cast using the template. The fabricated
wax patterns were processed by a compression moldingtechnique, according to the manufacturer’s instructions for the
materials.