I don’t buy zirconia blocks by unit price anymore. I buy them by the cost of the case that comes out of the block.
That is a sentence I would have rolled my eyes at six years ago, when I started managing procurement for a 12-person dental laboratory. We do standard crown-and-bridge work, anterior aesthetic cases, zirconia multilayer crown cases, and a steady number of zirconia full arch cases. I control the materials budget. Unit price was my first reflex. Over time I learned what every budget owner learns eventually: the cheapest line item is usually not the cheapest project.
I don’t have clinical experience. I only watch the invoices. And after auditing our spending for years, I can tell you what those invoices actually say.
Where a “cheap” block gets expensive
In early 2024, we quoted 98x20mm monolithic zirconia blocks from two suppliers. The first quoted $58 per block plus $190 freight. The second quoted $72 per block with freight included. Put the unit prices next to each other and my first instinct is obvious: the $58 block is cheaper. Do the math on a typical 10-disc order and it stops being obvious. Vendor A’s order is $580 plus $190, or $770 delivered. Vendor B’s order is $720 delivered. The “expensive” block was $50 cheaper at the door. That’s real money over a year.
The mistake was not because the first vendor hid anything. The freight was on the quote. It just was not the first number on the page. And I had trained myself to look at the first number.
Nobody orders one zircon disc at a time. Once you add freight, minimum order quantities, and the risk of sitting inventory, comparing a zircon disc by its unit price is like comparing an engine without seeing the car. You are looking at a number that exists in a vacuum.
I only believed this after ignoring it once. In mid-2023, we approved a trial order from a new source because the per-unit price looked 20% lower than our regular supplier. The price list was clean. The delivery quote was separate and slow to arrive. The customer service response time dropped after payment. The trial saved us a little on paper and cost us more in waiting, phone calls, and one rushed reshipment. Not a disaster. Just a slow leak. That leak is how budgets get damaged.
The real number is cost per finished case, not per block
When I audited our 2023 spending, I found that roughly 7% of our material budget went to freight and handling, and another slice went to inventory we eventually wrote off because a shade stopped being requested or a batch sat too long. The price per block never showed up in that part of the spreadsheet. The waste did.
For bigger restorations, the block price matters even less. Material is not the expensive part of a zirconia full arch case. Milling time, sintering, finishing, and the technician’s attention are the expensive parts. If a case has to be remade for any reason, the blank is not the loss. The hours are. Saving $30 on a blank is small comfort when you lose an afternoon and a second blank.
I keep the same rule when we buy lithium disilicate dental blocks. A block can look identical on paper and behave differently in the furnace if the supplier hasn’t given you accurate material data. If a vendor will not share a material data sheet and a batch certificate, they are asking you to accept risk instead of pricing it. Risk is a cost. It just shows up later.
The same logic applies to a CAD/CAM machine for a dental lab
This is also true when choosing a cad cam machine for dental lab use. In our last machine comparison, the cheaper unit looked like a clear win until we added what it could not do without additional equipment and what it would require in proprietary consumables. The higher-priced machine could mill both zirconia and glass ceramics, which mattered because we already buy lithium disilicate dental blocks. Once we projected two years of material costs and service costs, the cheaper machine became the more expensive decision.
Ask the same question with machines that you ask with blocks: what is not included? Some mills require their own branded discs. Some need paid software unlocks. Some only dry-mill. None of that is dishonest if it is in the quote. The problem is comparing only the first number and assuming the rest will work itself out.
So does price matter?
Of course it matters. I would not have a job if it didn’t. But I use price at the end of the analysis, not the start. The vendor who lists all fees upfront, even if the total looks higher, usually costs less in the end. A transparent quote is not a suggestion that you should spend more. It is an invitation to compare real numbers.
Some labs run high-volume production lines and can negotiate around minimums and freight. My experience is based on a smaller lab ordering in practical quantities. If you run a large milling center, your leverage is different. I can’t speak to that. I can speak to this: the cheapest unit price on the quote sheet is not the cheapest delivered price, and it almost never represents the total risk.
The three questions I ask before buying material now
We now ask every supplier the same three questions before approving a purchase:
- What is the complete delivered price for a typical order, not the price for one block?
- What are the minimum order quantities, restocking rules, and shade switch fees?
- Can you provide a lot certificate and material data for every box we receive?
If a supplier hesitates on the third question, I hear that as a future cost. Maybe it is a future remake. Maybe it is an hour of my technician’s time testing an unknown batch. Either way, it has a price.
The goal is not to buy the most expensive zirconia you can justify. The goal is to push hidden risks into the open where they can be priced. In my spreadsheet, the suppliers who put their fees on the table first win. I don’t trust a low price anymore. I trust a complete one.
