Inside Our Zirconia Crown Workflow
How a single zirconia unit moves through the ARR bench — scan to seat, monolithic vs layered, and the quality control you never see.
Zirconia has quietly become the workhorse of the modern restorative practice — and for good reason. It is strong, kind to opposing dentition when finished well, and it takes light in a way that reads convincingly natural. But the material is only half the story. A crown that seats on the first try, needs almost no chairside adjustment, and still looks alive at the margin is the product of a disciplined, repeatable workflow. Here is how a single unit moves through the ARR bench.
From scan to seat
Every case follows the same path, whether it is a single premolar or a full-arch bridge:
- Intake & scan review. An intraoral scan or a poured model is checked for a clean, continuous margin and adequate occlusal clearance. If the prep is questionable, we flag it before anything is milled — a two-minute call saves a remake.
- CAD design. The coping or full-contour crown is designed to your prescription, with cement gap, contact tightness, and emergence profile all dialled in digitally.
- Milling. The design is nested into a zirconia disc and milled in its pre-sintered state, then inspected under magnification.
- Sintering. The unit is fired to full density, where it gains its final strength and shrinks to exact size.
- Finishing & glaze. Staining, glazing, and polishing bring the shade to life and leave a surface that is gentle on the opposing arch.
Precision is not a step in the process. It is the process — every stage assumes the one before it was done right.
Monolithic or layered?
Not every case wants the same construction. The short version:
| Construction | Best for | Trade-off |
|---|---|---|
| Monolithic | Posterior units, bruxers, long spans | Slightly less depth of translucency |
| Layered | Anterior aesthetics, single-unit matches | More technique-sensitive, needs careful support |
For most posterior work we reach for full-contour monolithic — it is exceptionally strong and, with modern high-translucency discs, more than aesthetic enough. Anterior cases where the patient will see the tooth every day are where hand-layering earns its keep.
The quality control that you do not see
The difference between a good lab and a great one is what happens between the visible steps:
- Margins verified under magnification, not just on screen
- Contacts checked against the adjacent teeth on the model, then adjusted before glaze
- Shade mapped from your photos — not guessed from a tab held up to a monitor
- A final fit check on the die so the crown seats before it ever reaches your chair
None of this shows up in a photo of the finished crown. All of it shows up in the ten seconds you spend seating it.
Sending us your next zirconia case
A clean scan, a clear shade photo, and a note on anything unusual about the case — that is all we need to get started. If you would like to see finished work in person, the gallery has a run of recent zirconia units, and the contact page is the fastest way to reach the bench.