Why existing patients are your cheapest bookings
A patient who has already sat in your chair knows where you are, trusts your team and has a reason to come back. Winning them back costs a message, not an ad click.
That matters for the number we judge every channel by: cost per kept appointment. Paid ads have a cost for every click. A recall email to your own list has almost none, so even a modest response rate can produce your cheapest appointments of the month. To see what a returning patient is worth to you, work out your patient lifetime value.
Service messages versus marketing: know the difference
UK rules treat two kinds of message very differently. A service message is sent for purely administrative or customer service purposes, such as confirming or reminding someone of an appointment. The ICO says direct marketing does not include service messages (ICO).
The catch: if a service message includes promotional content, the whole message counts as marketing. An appointment reminder that adds "Ask about our whitening offer" is now a marketing message, with all the rules that come with it.
- Service: appointment confirmations, reminders, changes to opening hours, a plain reminder that a check-up is due.
- Marketing: offers, new treatments, seasonal campaigns, newsletters, anything that promotes the practice.
- If in doubt, treat the message as marketing and apply the rules below.
Consent and the soft opt-in under PECR
Marketing emails and texts to individuals are covered by PECR. You need the person's specific consent, or you can rely on the soft opt-in. The soft opt-in applies when the person bought or discussed a similar service with you, you gave them a clear chance to opt out when you collected their details, and every message gives them an easy way to opt out (ICO guidance on electronic mail marketing).
- Add an opt-out choice to your new patient form and online booking form.
- Put a working unsubscribe link in every marketing email and an opt-out instruction in every marketing text.
- Keep a do-not-contact list and check every send against it.
- Never buy or rent lists. The soft opt-in does not cover them.
The ICO says this guidance is under review after the Data (Use and Access) Act, so check the current version before a large campaign.
Five campaigns every practice should run
- Recall: patients overdue for an examination or hygiene visit. Send a plain reminder with a direct booking link. This is your highest-volume, lowest-effort campaign.
- Reactivation: patients not seen for 18 to 24 months. A short, friendly note that you would like to see them again, with one link to book.
- Unbooked treatment plans: patients who were given a plan but never scheduled it. Answer the usual objections: cost, time, discomfort. Offer a call with the treatment coordinator rather than a hard sell.
- After-care and reviews: a care message after treatment, followed later by a separate request for a Google review. Keep the two apart, and treat the review request as marketing to be safe.
- Seasonal: for patients who have agreed to marketing, a well-timed message about a treatment people plan ahead for, such as whitening before a wedding season or the holidays.
Writing messages that turn into bookings
A dental email is not a newsletter. Its only job is to get one person to book one appointment.
- One goal, one link. Every extra link is a reason not to click the booking button.
- Send from a person. "Dr Patel at Riverside Dental" gets opened more readily than a no-reply address.
- A plain subject line. "Your check-up is due" beats a clever pun.
- Short and mobile-first. Most people will read it on a phone, so put the booking link near the top.
- Link straight to booking. Send people to a short booking page, not the homepage. Long forms lose patients, as one 6,000-visitor booking page showed.
- Stay factual. No promises about results, no "best" claims, and make clear treatment depends on assessment. See claims that put dental ads at risk.
SMS and WhatsApp
Text messages are read quickly, which makes them ideal for reminders and short recall nudges. Marketing texts follow the same PECR rules as marketing emails: consent or the soft opt-in, plus an opt-out in every message.
WhatsApp is popular with patients, especially in Cyprus, but business messaging there runs under WhatsApp's own policies, which require people to opt in before you message them. Use it for patients who have chosen it, and keep a record of that choice.
In our own campaign for a dental clinic in Larnaca, automated reminders were part of a funnel where 66% of booked patients attended, against roughly 30% before (case study). Reminders were one part of that system, not the whole story, but they are the cheapest part to fix.
Patient data: keep segments simple
Information about a patient's treatment is health data, a special category under UK GDPR with stricter conditions. The safest segments for marketing are simple ones: last visit date, recall status, whether a plan was accepted. Before targeting messages on clinical details, such as a specific condition, check the lawful basis with your data protection adviser.
Keep marketing preferences in the practice software, not in a spreadsheet on someone's laptop, so opt-outs are applied everywhere.
Measure bookings, not opens
Open rates are unreliable, because many email apps load images automatically or hide them. Measure what matters instead:
- Bookings made from each send, using a tracked booking link or a short code.
- Attended appointments from those bookings.
- Treatment accepted and its value.
- Unsubscribes and complaints, which tell you when you are sending too often.
Compare the result with your paid channels. When your own list produces kept appointments at a fraction of the cost of ads, it deserves a fixed place in the monthly plan. Our guide to digital marketing for dental clinics shows where it fits alongside Google, Meta and SEO.
A 30-day plan to start
- Week 1: check your forms collect an opt-out choice; export overdue recall and lapsed patient lists; set up a short booking link.
- Week 2: send the recall campaign; set up automated appointment reminders if you do not have them.
- Week 3: send the reactivation campaign to patients not seen for 18 to 24 months.
- Week 4: follow up unbooked treatment plans with an offer of a call; count bookings and attended appointments from each send.
Want help setting this up? Book a free 30-minute audit call and we will look at your recall numbers together.
Founder, YLD · Paid ads for dental clinics
Savva runs YLD, a Larnaca-based agency that builds paid ads and booking funnels for dental clinics and judges every campaign by cost per kept appointment.