In dentistry, a lead is expensive: competition is high and patients rarely book on first contact. First they want to know whether they've come to the right place for their problem and whether they can come in for a no-obligation checkup. A regular website form handles this poorly. In this case study we look at how a quiz with an offer cut a dental clinic's cost per lead in a large metro area from $38 to $24 and grew monthly leads from 531 to 760.
The challenge
The clinic, located in a large metro area, attracted patients through several channels at once: Google Ads, targeted ads on Meta Ads, and search traffic (SEO). Leads were collected by a regular website form, the average cost per contact held at $38, and about 531 leads came in each month.
The problem is that someone visiting a clinic's website isn't ready to leave their contact yet: they need to know the clinic treats their issue and have a reason to come in. A static form didn't give that reason, so part of the traffic was lost.
Why a quiz worked
The clinic added a quiz to its site that opened from a button with a clear offer: a free first checkup and 10% off treatment. Instead of asking "submit your request," patients got a short selection: specify the service and the problem, pick a convenient time, and get booked with a benefit. The offer lowered the barrier and gave a reason to finish the quiz.
How the funnel was built
The quiz took the patient from the offer to the appointment:
- start screen with the offer (free checkup + 10% off);
- type of service (treatment, implants, orthodontics, and others);
- the problem that's bothering them;
- convenient time for the visit;
- offer and contact details to book.
Each step kept the person engaged and qualified the contact at the same time: the front desk saw the service, the problem, and the preferred time before calling, so booking was faster and more accurate.
Result
The effect built up over a month and a half of the quiz running:
- quiz conversion: 21% (share of people who opened it and went on to book);
- leads grew from 531 to 760 per month;
- cost per lead dropped from $38 to $24.
With the same ad channels, the clinic started getting more appointments and paying much less for each one: the offer worked together with an engaging funnel.
Who this approach suits
- medical and service niches where the first visit and trust are key;
- there's a clear offer: a free checkup, diagnostics, or consultation;
- traffic comes from ads and search, and the regular form produces expensive leads;
- you need to qualify the contact before the call (service, problem, time).
Conclusion
In dentistry, the quiz worked thanks to the "offer + engagement" combination: the free checkup and discount gave a reason to start, and short questions led to booking while qualifying the patient along the way. That grew leads from 531 to 760 per month and cut their cost from $38 to $24 in a month and a half.
The main takeaway: in niches where first contact is expensive, asking for a phone number isn't enough. Give the patient a clear benefit and lead them to the appointment with a short flow.
FAQ
Why does a quiz with an offer produce cheaper leads than a form?
The offer (a free checkup, a discount) lowers the barrier: people have a reason to go through the quiz and leave their contact. With the same traffic, more visitors get as far as booking, so the cost per lead drops.
Why ask about the service and the problem before booking?
That way the front desk gets a qualified lead: they see the service, the problem, and the preferred time before calling. Booking is faster and the conversation is more focused.
Does a quiz work for other medical niches?
Yes, the "offer + short selection" mechanic works wherever the first visit and trust matter: diagnostics, consultations, services with a free first step.
Do I need to change my ad channels?
No. In this case the channels stayed the same: Google Ads, Meta Ads, and SEO. The growth came from the quiz itself, thanks to better engagement and the offer.
