March 23, 2026
What a Missed Patient Actually Costs Your Dental Practice
A nurse calls in sick at 7am. The list is full, the diary can't absorb a cancelled morning, and by 8am you're weighing up whether to rebook every patient or turn some away. It feels like an operational headache in the moment. It's actually a revenue and retention decision, and most practices don't have a clear way to think about what it's really costing them.
This piece breaks down the real cost of a short-staffed day - not just the obvious bit (the appointments you don't run) but the part that's easy to miss: the patients who don't come back.
The obvious cost: the appointments themselves
The most visible cost of a staffing gap is the simplest to calculate. Every appointment that can't run because you don't have the staff to see it is revenue that doesn't happen that day. A full list of cancelled or rebooked appointments adds up fast, especially during a busy period when the diary was already tight.
That's the cost most practices already track, informally if not formally. It's the second cost that tends to get missed.
The harder cost: the patient who doesn't come back
Not every patient who gets rebooked actually reschedules with you. Some will - most, probably. But every rebooking is a small point of friction, and friction is where patients drift. A patient who's turned away once, especially during a period when they were already trying to fit an appointment around a busy schedule, may simply call a different practice instead of waiting for a new slot with yours.
This matters more than it might seem, because the patients most likely to be affected by a short-staffed day are often the ones already squeezed for time - which, not coincidentally, describes a lot of the people trying to book in September, when school terms restart and the backlog from a quieter August all lands at once.
A missed appointment isn't just a gap in today's diary. It's a small risk to a relationship you've usually spent years building.
Why this is worse during high-demand periods
The math changes depending on how much competing demand there is elsewhere. In a quiet month, a rebooked patient has less reason to look elsewhere - everyone has spare capacity, so there's no urgency. During a genuine demand surge, when every practice's diary is fuller than usual, a patient who can't get seen quickly has more reason to shop around, because other practices are also busier and slots are scarcer everywhere.
That's exactly the dynamic that makes September higher-stakes than most months: it's the point in the year when patient demand peaks, which means it's also the point in the year when a staffing gap is most likely to actually cost you a patient rather than just a day's revenue.
Weighing the cost of cover against the cost of a gap
Cover isn't free, but it's worth comparing against the actual alternative rather than against zero. On Airlocum, the service fee for a nurse is £3 an hour - roughly £29 for a full day - charged only once the shift is completed. That's the cost of keeping the list running. The alternative is the cost of not running it: lost revenue for the day itself, plus whatever proportion of rebooked patients quietly don't return.
|
Absorbing the gap |
Booking cover |
|
|---|---|---|
|
Today's list |
Cancelled or rebooked |
Runs as planned |
|
Cost |
Lost revenue for the day, plus rebooking admin |
Locum's rate plus a small service fee |
|
Patient relationship |
Some risk of patients booking elsewhere |
No disruption to the patient |
|
Paid |
N/A |
Only after the shift is completed and approved |
"One morning our hygienist called in sick at 7am, and by 9am we had an Airlocum temp hygienist in the chair. Another time, a nurse cancelled at 10pm the night before, and we still had cover by morning. The platform gives you full control: you can see each locum's fee upfront and choose someone who fits your budget and your practice." - Leila Evinipoor, CQC Registered Manager, Southside Dental Care, London
What actually changes the outcome
The single biggest factor in how fast a shift gets filled is how many locums the request reaches. On Airlocum: post the shift and it goes out to nearby verified locums - best-matched first, expanding until someone accepts - not a fixed shortlist. Most shifts fill in under 15 minutes on average. There's no contract, no subscription, and no minimum number of bookings: you post when you need cover, and the fee only applies once the shift's actually happened.
For practices weighing whether cover is "worth it" for a single day, the more useful comparison isn't cover versus free - it's cover versus the quiet cost of a patient who doesn't rebook.
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Frequently Asked Questions
It depends on the practice, but the cost has two parts: the direct revenue lost from appointments that can't run, and the harder-to-measure risk that some rebooked patients don't return at all. The second cost is often larger than practices assume, particularly during busy periods when patients have more alternatives.
Usually, yes, when weighed against the alternative. On Airlocum, the service fee for a nurse is around £29 for a full day, charged only after the shift is completed - a small cost set against the combined risk of lost revenue and a patient who doesn't rebook.
Because demand is higher across the board. A patient turned away during a quiet month has less reason to look elsewhere. A patient turned away during September's surge - when every practice's diary is fuller than usual - has more reason to book with someone else instead of waiting.
It costs the service fee (around £29 for a full day for a nurse), set against the cost of a cancelled list and any patients who don't rebook. Most practices find the comparison isn't close once both sides are counted properly.
Ready to simplify your staffing?
Join 1,900+ practices and 1,100+ locums already using Airlocum.