Profitability per treatment: the KPI almost nobody measures
Uncomfortable question: do you know the real margin a root canal leaves you, versus an implant or orthodontics? Most clinics know the list price of each treatment, but not its margin — and the treatment you bill most can be the one that leaves you least per chair-hour. It is one of the KPIs that changes the most decisions, and one of the least watched.
The trap of looking at price instead of margin
A €1,200 implant looks more profitable than a €180 root canal. But the implant carries a prosthetic component the lab charges for, higher-cost materials, several sessions and, often, a specialist’s commission. The root canal, done in one session by a staff dentist, can leave a higher margin per chair-hour. Until you subtract every direct cost and chair time, you are comparing prices, not profitabilities.
This matters because treatment mix is one of the levers that most moves the clinic’s overall margin. Filling the schedule with low-margin work while believing things are fine because revenue is rising is the most expensive silent leak there is.
How to calculate a treatment's real margin
The calculation that actually orders your portfolio is this:
Margin per treatment = price charged − materials − lab − practitioner commission − (cost per chair-hour × hours it takes).
Every component matters, but the one almost always forgotten is the last: the cost of the chair-hour. Your chair has an hourly cost — total fixed clinic costs divided by available clinical hours — that runs with or without a patient. A treatment taking four sessions consumes four times that cost, however attractive its list price. That is why it is worth looking at margin per hour, not just margin per treatment.
An example of why the order changes
Imagine two treatments (illustrative figures, rounded to show the effect):
- Treatment A — price €1,200. Lab and materials €400, commission €240, takes 4 chair-hours. At a chair cost of €90/hour, that is €360 of time. Margin ≈ €200, or €50/hour.
- Treatment B — price €180. Materials €25, no lab, no commission (staff dentist), takes 1 hour. Margin ≈ €155 − €90 of chair ≈ €65/hour.
The treatment billing nearly seven times more leaves less per chair-hour. It does not mean A is bad — it may be strategic, build loyalty, lend prestige — but it does mean deciding your mix on price alone points you the wrong way. With margin per hour in front of you, decisions on scheduling, pricing and acquisition change.
What to do with that information
Knowing profitability per treatment does not translate into “drop the unprofitable ones”. Some low-margin treatments are an entry point, build loyalty, or are part of the service your patient expects. The smart decision is different:
- Prioritise in the schedule the treatments with the best margin per hour when there is a waiting list.
- Review fees on treatments that consistently fall below the chair-hour cost.
- Renegotiate with lab and suppliers on treatments where those costs eat the margin.
- Watch the growth of low-margin treatments: let them grow by strategy, not by inertia.
Why almost nobody measures it (and how Mola solves it)
The reason this KPI is so rarely watched is practical: calculating it by hand means crossing prices, lab costs, commissions and chair times treatment by treatment, and redoing it every time a fee or supplier changes. That is unworkable in a clinic with a full day.
Mola automates it. It reads your management software activity — which treatments you do, how many sessions, which practitioner — and crosses it with your costs to compute the real margin and margin per hour of each treatment category. It is one of the six families in its metrics framework, and usually the one that springs the most surprises on the first read. Review it each week on your dashboard.
FAQ
About profitability per treatment
What is profitability per treatment?
It is the real margin each type of treatment leaves after subtracting its direct costs — materials, lab, practitioner commission — and the cost of the chair time it takes. It is not the list price or the revenue: it is what the clinic actually keeps per treatment, and it often changes the ranking of which treatments are worthwhile.
How do you calculate the real margin of a dental treatment?
Margin per treatment = price charged − materials − lab − practitioner commission − (cost per chair-hour × hours it takes). The factor most often forgotten is chair time: an expensive treatment taking many sessions can leave less per hour than a cheap, quick one.
Why is the treatment I bill most not the most profitable?
Because revenue is not margin. A high-priced treatment with heavy lab cost, high commission and many chair-hours can leave a lower margin per hour than a simple one. Until you subtract all direct costs and chair time, you do not know which one truly sustains the business.
Should I stop doing the unprofitable treatments?
Not necessarily. Some low-margin treatments are an entry point or build loyalty toward bigger work. The decision is not to drop them, but to know each one's real margin so you balance the mix consciously: what you prioritise in the schedule, what price you review, and which treatments should not grow unchecked.
