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Dental inventory fails in two directions at once. The clinic runs out of the thing it uses every day, and simultaneously has three years of supply of something bought once on a good discount.
Both are expensive. The first costs chair time and sometimes a rescheduled patient. The second is cash sitting on a shelf, often heading towards an expiry date.
Do not try to count everything
Most inventory systems collapse because someone tried to track every cotton roll.
Split what you hold into three groups:
- Group A — critical. Running out stops treatment: anaesthetic, composite, bonding, burs, endodontic files, impression material, gloves. Perhaps twenty to thirty items.
- Group B — expensive or slow to arrive. Implant components, lab-ordered items, specialist instruments.
- Group C — everything else. Cotton, cups, bibs, general consumables.
Track A properly. Track B by order rather than by count. For C, just look at the shelf weekly and buy more when it looks low. Trying to run C at the same rigour as A is how inventory systems get abandoned.
Set a reorder point, not a schedule
The useful question is not "when do we order?" but "at what quantity do we order?"
Reorder point = average weekly use × weeks to delivery, plus a safety margin.
If you use four syringes of composite a week and delivery takes two weeks, you reorder at eight plus a buffer — say twelve. When stock hits twelve, you order, regardless of the date.
Work out weekly use from actual consumption over a month, not from memory. Most clinics are surprised in both directions.
Expiry is the hidden cost
Dental materials expire, and expired material is not merely wasted money — using it is a clinical problem.
Two habits handle almost all of it:
First in, first out. New stock goes behind old stock, every time. This sounds trivial and is the single most effective inventory habit in a clinic.
A monthly expiry check. Once a month, look at anything expiring within 90 days. Move it to the front, plan to use it, or accept the loss now rather than discovering it during a procedure.
One person, one place
Inventory fails when everyone orders. You end up with duplicate orders, three different suppliers for the same item, and nobody able to say what was spent.
Name one person responsible for ordering. Everyone else writes on a list — a sheet on the storeroom door works — and that person orders.
Keep stock in one place. Materials distributed across three rooms cannot be counted, and each room quietly builds its own hoard.
Supplier discipline
Bulk discounts are how clinics acquire dead stock. Before buying twelve months of anything, ask two questions: does it expire, and could that money be doing something else?
A 15% discount on material that expires in eight months is not a discount.
Keep a second supplier for Group A items. A single supplier with a stockout becomes your stockout.
The monthly routine
Twenty minutes, same day each month:
- Count Group A against reorder points
- Check anything expiring within 90 days
- Review the month's spend against the previous month
- Reconcile: does what you bought match what you used?
That last step is the one that catches problems — large gaps between purchased and consumed mean either waste, a counting error, or stock leaving without being recorded.
What good looks like
You should be able to answer, without walking to the storeroom: what do we hold of our top twenty items, what expires in the next quarter, and what did we spend on materials last month.
If any of those requires a physical search, the system is not working yet.
Connect it to treatment
The reason to know consumption per procedure is that it feeds pricing. If a composite filling uses a predictable quantity of material, that cost belongs in the price of a composite filling.
Clinics that price from time alone, ignoring materials, consistently underprice the procedures that use the most.