FAQ

How does crown lengthening affect lab fabrication?

A straight answer first, then the context behind it, from the technicians who do the work.

THE SHORT ANSWER

Crown lengthening changes the clinical crown height and alters the gingival margin position, which directly affects margin placement, ferrule length, and restoration design. The lab needs updated measurements or a new impression taken after the tissue has healed, typically 6-8 weeks post-surgery, to fabricate a crown with accurate margins and proper emergence profile.

THE CONTEXT

What sits behind it

For general dentists and prosthodontists coordinating periodontal referrals, the sequencing problem is the most common source of remakes. A provisional impression taken before healing is complete will show a margin that shifts as tissue matures. Submitting final case work to the lab before the 6-8 week healing window closes means the definitive margin recorded on the die no longer matches the sulcus the day of delivery. That mismatch costs chair time and a second fabrication cycle.

From the lab side, the critical variables are ferrule and margin depth. Crown lengthening is typically performed to expose at least 2 mm of sound tooth structure above the alveolar crest, which gives the lab enough tooth structure to design a ferrule that supports the restoration long-term. If the case arrives without that documented, the technician cannot compensate in CAD. The clinician needs to communicate post-surgical crown height and margin location explicitly, not leave it to the scan alone.

Dani Dental includes a direct technician line on every case. When a crown-lengthening case comes through, the technician on file can confirm whether the submitted records reflect post-healing anatomy before the case enters the milling queue. That conversation, typically resolved in under 24 hours, prevents the remake before it starts.

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How does crown lengthening affect lab fabrication?
Crown lengthening changes the clinical crown height and alters the gingival margin position, which directly affects margin placement, ferrule length, and restoration design. The lab needs updated measurements or a new impression taken after the tissue has healed, typically 6-8 weeks post-surgery, to fabricate a crown with accurate margins and proper emergence profile.

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This question is one piece of a larger workflow. The pillar page covers materials, turnaround, and how we build the case to your specification.

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