Does production cost include milling machine depreciation?

It should, but it's often ignored or lumped into a vague "overhead" figure. The simplest approach: calculate the lab's monthly fixed costs (rent, equipment, fixed staff) and divide by monthly productive hours to get an hourly rate, then add that to each unit's direct cost.

Is it worth milling in-house or outsourcing to a milling center?

Depends on volume. An outsourcing milling center typically charges $15-140 per unit depending on tier (standard vs premium zirconia), with no upfront investment. Milling in-house requires equipment starting around $30,000, but drives the per-unit cost toward zero past a certain monthly volume: the break-even point depends on how many units you produce per month.

Why is the remake rate a real cost, not just an annoyance?

Every remade crown consumes material and labor time a second time, with no additional revenue, and that crown's real cost silently doubles. At a 3.8% rate (from a study of nearly 4,000 crowns), almost 4 crowns out of every 100 cost double what's actually billed, if nobody tracks it and it just gets absorbed into the price list.

Is the zirconia disk price alone enough to calculate material cost?

No, it's just the starting point. Every disk generates waste (on average 30-80% of the mass as milling powder, per a 2025 scientific review), so the real cost per crown also depends on how efficiently the nesting software places crowns on the disk, a factor that varies from lab to lab.

How to calculate the production cost of a crown in a dental lab

Finished zirconia crowns on a dental lab workbench

Many labs set their price list by tradition or to match competitors, without knowing what each crown actually costs to produce. If zirconia prices rise or production time stretches out and the price list stays flat, margin erodes without anyone noticing. It's the exact same problem as food cost in a restaurant.

What crown production cost actually is

Production cost is the sum of materials, labor time, and any outsourcing needed to produce one unit — crown, bridge, denture. It tells you how much margin is left on each price-list item before covering rent, equipment, and the lab's other fixed costs.

Unit cost = Material cost + (production time × technician hourly rate) + outsourcing cost

How much the material costs: the zirconia crown example

A 98mm zirconia disk costs roughly $120 and yields about 20 crowns on average (source: David Sipperly, Dentsply Sirona, Dental Products Report, 2021), so raw material costs about $6 per crown. That sounds low, but it's only part of the real cost: labor time often weighs more than the material itself.

Move the sliders to see how cost and margin change as production time and list price vary.

Material cost (pro-rata zirconia disk)$6.00

Production time (minutes)83 min

List price$80

Labor cost

$34.58

Total cost

$40.58

Margin

49%

Example technician hourly rate: $25/h. Your real hourly rate depends on the lab's fixed costs divided by monthly productive hours.

Digital vs traditional lab: the real cost difference

A peer-reviewed study (Sailer et al., Journal of Prosthetic Dentistry, 2017) measured active technician time to produce a single crown: 74-92 minutes with a digital CAD/CAM workflow, versus 148 minutes with traditional heat-press. Almost double the time, which translates directly into almost double the labor cost for the same crown.

This doesn't automatically mean going digital always pays off: a CAD/CAM milling machine starts around $30,000, so the math depends on the lab's real monthly volume. But if you already work digitally, you now have a concrete number to justify a different price list than labs still working traditionally.

The hidden cost almost nobody tracks: remakes

A study of 3,750 single-unit crowns (McCracken et al., Journal of Prosthodontics, 2018) measured a 3.8% remake rate — crowns rejected for misfit or esthetic issues, which the lab has to remake from scratch, material and time included, with no additional billing. It's a real cost almost no lab tracks systematically, quietly eating into the margin of every price-list item.

The same mechanism applies to a multi-unit bridge, but with different economics: more material, more production time, and a remake rate for which — unlike the single crown — no dedicated study exists yet.

Frequently asked questions

The math above, done by hand. The calculator will do it for you

It reads your zirconia and material suppliers' invoices and calculates the real cost per crown on every delivery, no manual recalculation needed.

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