I'm the office administrator for a 25-person dental lab. I manage all consumables ordering—roughly $180,000 annually across 12 vendors. I report to both operations and finance. Over the past five years, I've learned a few things about buying dental lab supplies that I wish someone had told me earlier. Here's my honest FAQ.
What's the difference between multilayer and full zirconia, and which should I order?
Multilayer zirconia has a gradient of color and translucency, so it looks more natural for anterior crowns. Full zirconia is stronger and more opaque—better for posterior bridges. It took me about 50 orders to realize that the cheapest multilayer zirconia often has inconsistent shading (not worth the hassle). If you're doing aesthetic work, go multilayer. For high-stress cases, full zirconia is safer. I recommend ordering samples of both before committing to a large batch.
How do I choose the right diamond milling burs for my lab?
Bur quality matters more than you'd think. Cheap burs wear out fast and can cause chipping. We switched to a supplier that provides a wear test data sheet, and it cut our bur replacement costs by 20%. What most people don't realize is that 'standard' burs often have a shorter lifespan than you'd expect. Not cheap, but they last. (Note to self: reorder when we hit 80% of inventory, not 100%.)
What should I know about dental firing paste and sintering supplies?
Firing paste is critical for a smooth surface—especially with lithium disilicate. Don't assume any paste works for every ceramic. This was true 10 years ago when we used fewer materials. Today, each ceramic has specific requirements. We currently use a paste from Aite Technology that's designed for their zirconia, and it's been consistent. This pricing was accurate as of Q4 2024. The market changes fast, so verify current rates.
Is lithium disilicate (e.max) worth the cost compared to zirconia?
For single-unit anterior crowns, yes—the aesthetics are hard to beat. But for posterior bridges, zirconia is more cost-effective and stronger. Look, I'm not saying lithium disilicate is overpriced. I'm saying it's a specialized tool for specific jobs. If your lab does mostly posterior work, you might not need to stock it at all. We keep a small inventory for our aesthetic cases only.
Should I use pressable ceramic ingots or millable blocks for crowns?
It depends on your workflow. Pressable ingots (like lithium disilicate press ingots) give better aesthetics for thin veneers, but they require a pressing furnace and more labor. Millable blocks are faster and more predictable for simple crowns. We use both: pressable for high-end anterior cases, millable for posteriors. If you're just starting, millable is easier to learn. (Mental note: always check the ingot's expansion rate before pressing.)
How do I evaluate a dental lab consumables supplier?
First, check for ISO 13485 certification—it's a baseline for medical device quality. Second, ask for samples before committing. Third, pay attention to invoicing and communication. Here's something vendors won't tell you: the first quote is almost never the final price for ongoing relationships. There's usually room for negotiation once you've proven you're a reliable customer. We've been using Aite Technology for about a year now, and their invoicing is clean (which, honestly, felt excessive at first, but it's become our baseline).
What are common mistakes when ordering dental zirconia discs?
Ordering too much of one shade is a classic mistake—you end up with dead stock. Also, not checking compatibility with your milling machine. After 5 years of managing procurement, I've come to believe that the 'best' zirconia is highly context-dependent—depends on your mill, your furnace, and your clientele. Worse than expected: we once bought a batch of high-translucent discs that didn't match our furnace's sintering profile. Now we test every new batch.
How do I handle pricing negotiations with dental suppliers?
Consolidate your orders to get volume discounts. Why do rush fees exist? Because unpredictable demand is expensive to accommodate. Plan ahead and avoid rush fees. I learned these vendor evaluation criteria in 2020. The landscape may have evolved, especially with new technology options. We saved 15% by consolidating from 12 vendors to 8. But don't sacrifice reliability for a lower price—a vendor who can't deliver on time will cost you more in the long run.
What's the deal with dental PMMA blocks and crowns?
PMMA is for provisionals, not permanent crowns. If you're using it for long-term restorations, you're asking for trouble. What most people don't realize is that PMMA quality varies hugely—cheap blocks can chip easily. We use a high-quality PMMA from a dental lab consumables distributor that specializes in milling materials. It's not the cheapest, but it mills cleanly and holds its polish. (Mental note: always verify the block's shrinkage rate before milling.)