Modern multilayer zirconia has transformed restorative dentistry. Today's highly translucent zirconia can produce beautiful, natural-looking restorations while providing excellent strength and durability. Yet, in highly demanding anterior cases, many clinicians and technicians still find that porcelain-fused-to-zirconia (PFZ) restorations often exhibit a level of depth and vitality that can be difficult to reproduce with monolithic zirconia alone. Why? The answer is not simpl

Closed-tray implant impressions can be predictable when tray selection, impression coping management, impression material, and transfer of the coping to the impression are carefully controlled. From the laboratory perspective, a few small details can make a meaningful difference in how accurately implant position is captured. 1. Cover the Screw Access Opening Prevent Material Flow: Place a small amount of wax over the coping's screw access opening to reduce the chance of impr

Screw-retained zirconia implant crowns can provide strength, retrievability, and esthetics, but their performance depends on the relationship between implant position, abutment geometry, screw-access design, zirconia thickness, and occlusal loading. A standardized component can perform predictably when the implant is well positioned and restorative space is favorable. The challenge arises when component geometry does not provide enough control for the specific case. Figure 1.