How do labs handle margin discrepancies?

Margin discrepancies fall into two categories: those caused by the impression or scan, and those caused by the prep itself. A technician working from a digital scan can zoom into the margin line and identify artifacts, soft-tissue overlap, or inadequate reduction before the CAD file is even opened. With a PVS or polyether impression, the die must be trimmed to locate the margin, and ambiguous areas need to be called out immediately. The difference between a lab that makes a call and ships versus one that calls the doctor first is the difference between a remake and a clean delivery.

At Dani Dental, every case is reviewed by the assigned technician at intake. If a margin reads below our threshold for a clean finish line, the doctor gets a call or message within the same business day. We do not assume and fabricate. That protocol directly supports our less than 2.5 percent remake rate target, because remakes almost always trace back to a margin decision nobody confirmed.

For prosthodontists and restorative-focused GPs running high-volume crown work, this matters operationally. A remake on a posterior crown costs a second impression appointment, a temporary, and a re-seat visit. Three appointments where one was planned. Confirming margin ambiguity at intake, usually a two-minute call, eliminates that chain. That is the practical return on a lab that picks up the phone before it picks up the bur.