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An average dental clinic with 3,000 active patients loses between 4,000€ and 7,000€ every month from patients who stopped coming back.
Every dental clinic has a hole through which revenue leaks every month, and it almost always goes unnoticed. It has nothing to do with material costs or occasional gaps in the schedule. It comes from inactive patients: people who visited the clinic, received treatment, and never came back.
Almost nobody tracks them. And that is why almost nobody knows how much they cost.
An inactive patient is someone who is in your database but has not visited the clinic in the last 12 months. Sometimes it is 18 months, sometimes 24. The exact figure depends on how you define "active" within your recall protocol.
In any case, the pattern is the same: there was a clinical relationship, and it was interrupted.
Most of the time there is no clear reason. It is not that the patient got upset or changed clinics. They simply stopped coming out of habit: they missed their check-up, did not receive a clear reminder, and a year later nobody remembered to call them.
Your management software shows you monthly revenue, confirmed appointments, and cancelled appointments. What it does not show you is how many patients should have returned but did not.
This figure is invisible. It does not appear in any automatic report. To see it, you have to cross-reference your entire database with appointments from the last 12 months and identify the difference.
When a clinic does this for the first time, the number is almost always surprising. Based on our experience with pilot clinics, between 60% and 70% of registered patients are inactive at any given time.
In a recent pilot, a clinic gave us access to its database. We identified its inactive patients and contacted them via WhatsApp over 90 days.
These were the results:
The most important detail from the pilot is what did NOT happen: the clinic team did not have to lift a finger. We managed the entire conversation, from the first message to the confirmed appointment.
If your clinic has 3,000 patients in its database and 65% are inactive, that means 1,950 patients could return but do not. If you recover 20% within 90 days, that means around 390 appointments and around 40,000€-45,000€ in revenue over the quarter.
This is not an invented projection. It is the pilot's mathematics applied to your case.
If you want to calculate the exact figure for your clinic, we have built a lost revenue calculator. Enter the size of your database and the average value of your treatment, and it will show you the real figure.
When we contact inactive patients, the answer is almost always one of these five:
1. They missed their check-up. They did not receive a clear reminder and forgot. It is the most common reason.
2. They did not have time at the right moment. They wanted to book an appointment, but it coincided with a busy period and they never thought about it again.
3. They did not know they had pending treatment. There was a recommendation that was never completed: a root canal, deep cleaning, or a second phase of orthodontic treatment.
4. They moved home or changed jobs. The clinic is now too far away, but they have not looked for another option.
5. A one-off bad experience. A long wait, an unexpected bill, or a small detail. They did not complain. They simply did not return.
The five reasons have one thing in common: none of them are definitive. Most of these patients are open to coming back if they are contacted properly. What usually fails is not the patient's willingness, but the clinic's follow-up process.
If you do nothing, two things happen at the same time.
The first: inactive patients remain inactive. Every month that passes without contact, the probability of recovering them decreases. After 24 months, recovering them is very difficult. After 36 months, it is practically impossible.
The second: your database grows, but your active patient ratio decreases. You have more names in the system, but fewer people in the chair.
This creates a dangerous illusion. The clinic appears stable because revenue remains steady. But productivity per registered patient decreases every year. And when a slow month arrives, you will have nobody to turn to.
The logical question is: why don't receptionists call?
And the honest answer is: because they cannot.
The job of a dental reception team is to look after incoming patients, manage the daily schedule, collect payments, solve unexpected issues, and keep the clinic running smoothly. It is a job with a very high relational and operational workload, and it leaves no room for a second layer of tasks.
Calling 750 inactive patients one by one, leaving messages, following up, recording responses, and scheduling appointments requires between 60 and 80 hours of focused work. That is two full-time weeks. Time that simply does not exist in an active clinic.
The result is that reactivation campaigns are carried out once a year at best, in an improvised way, and results are poor. Not because the team is not capable, but because one person cannot do it properly while also handling their usual responsibilities.
The alternative we propose at Keishal is different: we manage the reactivation process for you. We integrate with your management software, identify inactive patients, contact them via WhatsApp, manage the conversation, and write confirmed appointments directly into your calendar.
Your team does not need to learn anything. They do not need to do anything differently. They simply see the results.
If you want to see how it works in detail, we have recorded a 1-minute video on how we do it.
The fastest way to see the real size of the problem is to calculate your figure. We have built a free calculator that only needs two pieces of information: how many patients you have in your database and what the average value of your treatment is.
In 30 seconds you will know how much your clinic loses every month due to inactive patients, how many monthly appointments you could recover and what additional revenue it would generate.
If you have reached this point, you probably already know that you have inactive patients. The question is how many, and how much they are costing you.
Calculate your exact figure or book a call so we can show you how we manage it.
Cofounder of Keishal.
