Find the exact max you can spend to acquire a new patient — without losing money on every Google Ad click.
Industry avg patient CAC for this specialty: $120–$280
Revenue collected per accepted treatment plan.
Lab work, crowns, materials, supplies per case.
Net margin % to preserve after all costs including marketing.
Out of 100 phone/form leads, how many become paying patients?
Max Allowable CAC
per new patient, at your 35% margin target
Dental keywords cost $8–$25 per click. You need to know which specific campaign and keyword generates actual booked appointments — not just form fills.
Track Your Ad Clicks Free →Most dental practices set their Google Ads budget based on what feels comfortable — usually somewhere between $500 and $2,000 a month — without ever calculating whether that number is tied to their actual case economics. The result is a lot of guessing.
The right question isn't "how much should I spend?" It's "how much can I afford to spend to acquire one new patient before I stop making money?" That number is your Maximum Allowable CAC (Customer Acquisition Cost), and every dollar above it is a loss.
A general dentist with an average case value of $1,200, lab costs of $200, and a 35% target margin has a Max CAC of around $580. If their Google Ads are bringing in patients at $800 each, they're underwater — even if their schedule looks full.
These are real-world ranges based on industry data. Your actual number will vary by city, competition, and how well your landing page and front desk convert inquiries to booked patients.
| Specialty | Avg Google CPC | Avg CAC Range | Avg Case Value |
|---|---|---|---|
| General Dentistry | $6–$14 | $120–$280 | $800–$1,500 |
| Cosmetic / Veneers | $10–$22 | $280–$600 | $3,500–$6,000 |
| Dental Implants | $15–$30 | $350–$800 | $3,000–$6,000 |
| Invisalign / Ortho | $10–$20 | $300–$700 | $4,500–$7,000 |
| Emergency Dental | $5–$12 | $60–$150 | $600–$1,200 |
Say you're paying $15/click for dental implant searches. Your landing page converts at 4%, meaning it takes 25 clicks to get a form fill or phone call — that's $375 per lead. If your front desk books 30% of those leads as consultations, your cost per booked appointment is $1,250. If the same practice improves their phone conversion from 30% to 50%, that cost drops to $750 — without changing a single ad.
The best dental marketing directors obsess over the call answer rate, script quality, and speed-to-response more than they ever worry about their bid strategy. A missed call from a Google Ads lead is a $15+ coin in the trash.
This is also why tracking matters beyond just the click. You need to know whether a lead who called from a specific keyword actually booked — not just whether they clicked.
Google Ads will tell you how many clicks you got. It won't tell you which specific campaigns, keywords, or ad groups actually resulted in a booked appointment. The gap between clicks and actual patients booked is where most dental marketing budgets leak.
The practical fix is to route every ad destination through a tracked short link. When someone clicks your Google Ad and lands on your appointment page, that link records the click with the referring source. When they fill the form, you tie that conversion back to the exact campaign and keyword. Suddenly you can see: "these 3 keywords account for 80% of booked patients, and these other 12 keywords just cost me money."
That data is what makes the difference between dentists who cut their ad spend in half while keeping the same patient volume and dentists who just keep increasing their budget hoping things improve.
For general dentistry, most practices report paying $120–$280 per new patient from Google Ads. Specialty practices like implants or Invisalign see $300–$800+ per patient, which is still very profitable given the higher case values.
Google Ads typically outperform Facebook for dental because you're capturing people actively searching for a dentist right now. Facebook works well for cosmetic cases (veneers, whitening, Invisalign) where the patient isn't necessarily searching but responds to before/after imagery. Most competitive practices run both.
Multiply your average annual patient spend by your average patient retention in years. A patient spending $600/year who stays for 8 years has a lifetime value of $4,800. This is why some practices will spend $400–$500 to acquire a general patient — the long-term return is strong.
A well-optimized dental landing page with a clear CTA, before/after photos, reviews, and an easy appointment form typically converts at 3–7%. If you're below 3%, the page — not the ads — is your problem.
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