CEREC Parameters Update and Engineering for Consistent Seating
CEREC parameters are designed to help the software run smoothly and to optimize both the proposal and the milling process. While they are important, if we truly understand the coloring and spacer system within the CEREC software, we can calibrate the system to work very predictably.
There are three parameters that are especially critical:
1. CEREC Occlusal Offset (MCXL)
This is extremely important. If the CEREC Occlusal Offset is incorrect, the restoration will mill high in occlusion, which can quickly lead to stressful clinical situations. Proper calibration here is foundational.
2. Occlusal Contacts Strength
This parameter influences how the software proposes occlusal contacts. Managing this correctly helps minimize post-seat adjustment.
3. Proximal Contacts Strength
This dictates how tight the interproximal contacts will be. When set appropriately, it simplifies seating and reduces chairside adjustment — which is always my goal.
That said, the most important factor in making the system work predictably is not just the parameters — it’s how we engineer the restoration, and that is a direct reflection of the preparation.
The most critical aspect of preparation design is occlusal reduction relative to the material being used. There is a specific reduction formula I follow (which I’ll cover in this video). If we find ourselves spending time adjusting occlusion, it is usually because the preparation was under-reduced.
When the preparation is prepared correctly for the material, the software and mill perform beautifully — and seating becomes simple and stress-free.
