Search for the best multilayer zirconia and you get a list of brands. That list tells you who markets hardest, not which disc suits your lab. Here is what to compare instead.

1. Is it graded on one property, or three?

"Multilayer" is not a regulated term. Plenty of discs shift colour through the blank and nothing else — the strength and translucency stay flat top to bottom. You get a shade gradient and a monolithic optical character.

Ask specifically: does translucency change through the blank? Does strength? A disc that grades all three is doing the work the natural tooth does. Our 3D PRO grades colour, translucency and strength together, which is why the cervical zone can carry load while the incisal zone transmits light.

2. What is the strength range — and is it a range at all?

A single number on a multilayer disc is a small warning sign. If strength genuinely varies through the blank, the spec should be a span. 3D PRO is quoted at 650–1100 MPa because that is what a graded blank does — while our flat-shade series carry single published figures for the same reason (ST at 1100 MPa/43%, HT at 1350 MPa/37%). A supplier whose graded and uniform discs all wear the same number has told you something.

3. Translucency, stated as a percentage

Ask for the figure, and for the range across the layers. 3D PRO is 42–49%. A supplier who cannot give you the number for their own material is a supplier who has not measured it.

4. Which standard, and which certificate

For dental zirconia the standard is ISO 13356. Ask what ships with the disc: our zirconia carries an IdentCeram certificate, and the material is FDA-listed. The certificate also names the composition — ours is yttrium-stabilised zirconia, with ZrO₂ + HfO₂ + Y₂O₃ at ≥99%, Y₂O₃ at 5.2% and Al₂O₃ below 0.1%.

That paperwork matters twice: your dentist may ask for it, and it is what tells you the box you opened is the material you were sold.

5. Format, thickness range, and whether you pay for what you use

Check the blank format first — our 3D PRO discs are 98 mm, the standard open-system format, so they mount in the mills most labs already run.

Then check the thickness ladder. A supplier who only stocks thick blanks makes every single-unit case subsidise a full-arch one. 3D PRO runs 10 through 25 mm in eight steps, each thickness its own price — from $47 for 10 mm to $76 for 25 mm — visible on the product page rather than behind a quote form. And check the minimum order while you are there: ours is one disc.

Ask about sintering while you are at it. A supplier who cannot hand you a cycle for their own material is asking you to reverse-engineer it on live cases. Ours is printed on every product page down to the ramp rates and the cooling segment (3D PRO fires to 1500 °C with a 120-minute hold; HT White and ST to 1530 °C). And be wary of a speed-sintering promise that arrives without the material's own validated curve in writing — fast cycles do not transfer between formulations.

While comparing, check how the other quotes are structured. A quote-only supplier is not necessarily more expensive — but you cannot compare what you cannot see, and you cannot plan a month of production against a number you have to ask for.

6. Where it ships from, and when

Lead time is a spec. A disc that has to clear customs is a disc you cannot promise a dentist. Ours leave our own Florida warehouse, and orders placed before 12:00 PM ET ship the same business day.

The test that settles it

Every point above is a claim until you mill one. Ask any shortlisted supplier for a sample disc, mill the same case on each, sinter on your own curve, and look at them side by side under your own lights.

We give U.S. labs a free 3D PRO sample disc for exactly that reason, with a first-order discount code in the box. If a supplier will not put a disc in your hands, that is information too.

How to Compare Multilayer Zirconia Discs (Without Just Reading the Brand Name)