Forget the marketing claims. The honest way to judge an AI receptionist is to build the maths on your own practice’s numbers. Here is how.

Every dental practice loses revenue to the phone. Not because the team is poor at their jobs, but because a single front desk cannot be on three calls at once, answer at 7am, or pick up while a nervous patient is mid-consult. The question is not whether you are missing calls. You are. The question is what those missed calls are worth, and whether an AI receptionist returns more than it costs.

This article gives you a framework, not a sales pitch. Plug in your own figures and the answer will be specific to your practice.

The one formula that matters

The value of any AI receptionist comes down to a single chain. Everything else is detail:

Missed calls recovered × booking rate × average patient value − the cost of the tool = your annual ROI.

You only need three honest inputs from your own practice to fill this in. Let us walk through each, then run a worked example.

1. How many calls do you actually miss?

Most practice phone systems can report this, or your team can tally it over a fortnight. Count calls that ring out, hit voicemail, or land in a queue and drop. Be honest about the early mornings, lunch hours and the moments the desk is simply overwhelmed. A busy practice missing 8 to 12 calls a day is not unusual. Over a working year, that is 2,000 calls or more going unanswered.

2. What share of those calls would have booked?

Not every missed call is a new patient. Some are existing patients rescheduling, some are suppliers, some are wrong numbers. A conservative assumption is that a slice of genuine new-patient enquiries sits inside that missed pile. Use a figure you can defend, say 15 to 25 percent of missed calls being a bookable opportunity, and a realistic conversion to a booked appointment on top of that.

3. What is a patient actually worth to you?

This is where dentistry pays for diligence. A new private patient is worth roughly £2,000 to £5,000 in lifetime value once you account for ongoing care, hygiene visits and the treatment that follows a first appointment (illustrative, but grounded in how dental relationships compound). Even at the cautious end, a single recovered patient pays for months of a tool.

A worked example, on cautious numbers

Let us be deliberately pessimistic so the maths cannot be accused of flattery. Take a practice missing 6 calls a day across roughly 250 working days.

Even if you halve every assumption, twice, you are still looking at recovered value in the tens of thousands. Against a tool that costs a few thousand pounds a year, the ratio is not close. The point is not the headline number, it is that the maths survives heavy discounting.

Do not forget the no-show problem

Recovering calls is only half the picture. One in six NHS dental patients fails to attend at least one appointment a year (around 17 percent, per the British Dental Journal). Every empty chair is a slot that could not be refilled because nobody had time to call the waiting list. An AI receptionist that confirms, reminds and rebooks around the clock attacks this directly, and that recovered chair time is pure margin on costs you have already paid.

Now the cost side, honestly

An AI receptionist does not exist in a vacuum. Compare it against what you already spend to answer the phone, and what you would otherwise spend to cover the gaps.

Those receptionist figures use gov.uk 2025/26 employer costs, including 15 percent employer National Insurance and a 3 percent pension. The point is not to replace your team. It is that the front desk is already expensive, an answering service only takes a message, and practice software is a fixed cost whether the phone is covered or not.

Against that backdrop, UK dental AI receptionists typically run in the region of £83 to £295 a month. (US-built tools often start at $300 to $800 a month base, so price is not the differentiator to chase.) The honest framing is value, not cheapest. A tool at the lower end that recovers a handful of patients a year has already paid for itself many times over. See current options on the Hi Human pricing page.

What an AI receptionist does not replace

Credibility means saying what it cannot do. An AI receptionist will not handle clinical triage decisions, it will not replace the warmth of a long-serving team member who knows patients by name, and it will not fix a practice with no capacity to see the patients it books. What it does well is the relentless, repetitive, out-of-hours work that a human desk cannot sustain: answering instantly, every time, capturing the enquiry, booking into the diary, and chasing confirmations. It frees your team to do the human parts better. You can see how this plays out across a clinic on the Hi Human for healthcare page.

A word on control and data

Patient enquiries are personal data, often health-related, so where it is processed matters for procurement and for your DSPT and DTAC assessments. Lawful transfers out of the UK do exist, this is not about legality, it is about control: keeping the data path simple, UK-based and easy to evidence when a commissioner or an information governance lead asks. For practices that want processing kept on their own premises, our bespoke on-site option, Hannah Sovereign, is in development and currently accepting waitlist registrations. The receptionist persona itself is called Hannah, and ndu Clinic on Harley Street is among the practices already working with us.

Run your own numbers

The maths is not complicated and it is not ours to dictate. Take your missed-call count, a booking rate you can defend, and a patient value you believe in. If the recovered revenue clears the cost of the tool by a wide margin, even after you discount it heavily, the decision makes itself. For most practices, it clears it by an order of magnitude.

See the maths on your practice

Bring your own numbers and we will walk through them with you, no pressure, no jargon.

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Figures are illustrative and based on publicly available cost references (gov.uk 2025/26 employer costs; British Dental Journal on non-attendance; published UK and US tool pricing). Patient lifetime values are illustrative and vary by practice. Always model with your own data before making a purchasing decision.