How Much Should a Dental Practice Spend on Supplies?
The benchmark is 6% of collections. Most practices are above it. Where the overspending happens, and how to save $18,000/year without sacrificing quality.
The benchmark for dental supply costs is 6% of collections (ADA Survey of Dental Practice, 2024). For a practice collecting $1 million per year, that's $60,000. Sounds simple, but most practices don't track it closely enough to know if they're at 6% or 10%. Here's how to benchmark yours and where the savings are hiding.
Supply Cost Benchmarks by Practice Type
| Practice Type | Target % of Collections | Dollar Range (on $1M) | Notes |
|---|---|---|---|
| General Practice (GP) | 5 - 6% | $50,000 - $60,000 | Standard benchmark |
| GP with in-house milling | 7 - 8% | $70,000 - $80,000 | Higher supply cost offset by lower lab fees |
| Specialty (endo, perio) | 4 - 6% | $40,000 - $60,000 | Lower consumable use per procedure |
| High-implant practice | 7 - 9% | $70,000 - $90,000 | Implant components are expensive |
Sources: ADA Survey of Dental Practice 2024; Dental Economics overhead study 2025; AAOMS practice benchmarks
Important distinction: Supply costs and lab fees are separate line items. Lab fees should run about 8% of collections as an additional benchmark. If you're combining them, your "supplies" number looks inflated and you won't know where to cut.
The Operator Math: What 2% Overspending Costs
Operator Math: Supply Cost Savings
Annual collections: $900,000
Current supply spend: 8% = $72,000
Target spend: 6% = $54,000
Annual savings from hitting benchmark: $18,000
That's $18,000 straight to your pocket since it comes directly off overhead.
Based on ADA overhead benchmarks (6% supplies target)
Where Practices Overspend
1. Over-Ordering and Expiration
Walk into most practice storage rooms and you'll find supplies that expired 6 months ago. The fix: switch to just-in-time ordering. Set par levels for every item and reorder only when stock hits the minimum. Most dental supply companies offer auto-ship programs that can be tuned to your actual usage.
2. Brand Loyalty That Costs You
Paying full price for name-brand composites, cements, and bonding agents when comparable generics exist at 30 - 50% less. That $250 tube of composite that you use 3 boxes of per month? The private-label equivalent at $140/tube saves you $3,960/year on just that one item. Sources like net32.com, Crazy Dental, and Supply Clinic offer significant discounts on equivalent products.
3. No One Tracks It
In many practices, anyone can order supplies without approval. There's no budget, no tracking against a percentage, and no accountability. Assign one person (usually the lead assistant) as the supply manager. They own the budget, place all orders, and report monthly on spend vs. target.
4. Free Trials That Become Subscriptions
The rep drops off a "free sample" of a new bonding agent. The team loves it. Now you're buying it at $400/bottle instead of the $180 product that worked perfectly fine. Evaluate every new product against the cost of what you're currently using before committing.
5. Not Negotiating or Shopping
If you've been with one distributor for 5 years and never asked for a discount, you're paying too much. Get quotes from a second distributor. Most practices can save 10 - 15% simply by asking their current supplier to price-match or by splitting orders between two distributors.
How to Get Your Supply Costs Under Control
- Calculate your current percentage. Total supply spend (last 12 months) / Total collections (last 12 months) x 100. If it's over 7%, you've got work to do.
- Separate supplies from lab fees. These are different cost categories with different benchmarks. Combining them hides problems in both.
- Set a monthly budget. If you collect $80,000/month, your supply budget is $4,800 (6%). Post it. Track it. Review it.
- Audit your current inventory. Throw out expired products. Count what you have. You might discover you have 6 months of prophy paste sitting on a shelf.
- Try generics for consumables. Start with gloves, prophy paste, cotton rolls, and bibs. Work up to composites and cements if generic quality meets your clinical standards.
- Join a buying group. Groups like Synergy Dental Partners, Dental Purchasing Group, or your state dental association's buying program negotiate volume discounts that individual practices can't get.
Curious how your supply costs stack up against the rest of your overhead? Use our Overhead Calculator to get a complete breakdown by category.
