The verdict in three sentences
For a cosmetic dentistry practice in Tokyo, SEO captures patients already searching for a specific treatment (veneers, implants, aligners) and remains the channel most measurable in bookings, while AEO/GEO matters most for expats and international patients who now ask AI assistants like ChatGPT "which English speaking dentist in Minato does veneers". With self-pay treatments often between 100,000 and 500,000 JPY (about 670 to 3,300 USD) per procedure, a few extra patients a month justify either channel. The decision depends on your target patients, the maturity of your brand and your medical advertising constraints, and each channel is measured separately: Search Console and bookings for SEO, a dated record of AI answers for AEO.
Two channels, two different patients
A Japanese patient types "セラミック 前歯 表参道" or "マウスピース矯正 費用 渋谷". An expat executive types "English speaking cosmetic dentist Tokyo veneers" or asks an AI assistant the full question, adding their neighborhood, budget and insurance. These two journeys do not call for the same investment.
| Dimension | SEO (Google) | AEO/GEO (AI assistants like ChatGPT) |
|---|---|---|
| Main patient targeted | Local patients comparing clinics by neighborhood and treatment | Expats, international patients, conversational searches in English |
| Time to effect | 4 to 8 months in Tokyo, highly competitive | 2 to 6 months before visible movement, variable results |
| Market budget (2026 ballpark) | 200,000 to 800,000 JPY per month (about 1,300 to 5,300 USD) | 150,000 to 500,000 JPY per month (about 1,000 to 3,300 USD), or an audit at 500,000 to 1,500,000 JPY (about 3,300 to 10,000 USD) |
| Measurement | Impressions, clicks, calls, consultation bookings | Share of answers citing the practice, accuracy of information (address, languages spoken, treatments) |
| Risk | Before/after pages or testimonials that breach medical advertising rules | Wrong information repeated (hours, prices, dentists who have left) |
These ranges reflect typical quotes from Tokyo agencies specialized in healthcare, converted approximately into USD at about 150 JPY to 1 USD.
Where to put your budget, case by case
| Your case | Split that makes sense | Main reason |
|---|---|---|
| New practice, few online reviews | Local SEO first, AEO limited to consistent information | AI assistants repeat what is published and confirmed elsewhere; without a base, little chance of being cited |
| Established practice, mostly Japanese patients | SEO dominant (about 75%) | Google search in Japanese remains the main booking channel |
| Practice targeting expats and international patients | 50/50 balance | These patients ask AI assistants in English and compare English speaking dentists |
| Sensitive content (before/after, financing) | Validated factual base before any action | Both channels amplify compliance errors |
| Budget under 300,000 JPY per month (about 2,000 USD) | One-off AEO audit, then SEO focused on 3 to 5 treatments | A few strong pages beat many weak ones |
Medical advertising in Japan is regulated, and the rules also apply to clinic websites: patient testimonials and before/after photos without an explanation of the treatment, its cost and its risks are problematic. On data, the APPI, supervised by the Personal Information Protection Commission, governs the collection of personal information, health data all the more. This is not legal advice: have your pages reviewed by a specialist.
Measuring what really matters
For SEO, the useful metric is not overall traffic but the number of consultations booked from organic search, matched against Search Console queries. An "implants Ginza" page producing 4 consultations a month is worth more than a blog drawing 3,000 off-target visitors.
For AEO/GEO, measurement relies on a dated record: 20 to 30 real patient questions ("English speaking dentist for veneers in Roppongi", "implant price in Tokyo for a foreigner", "aligner clinic open on Saturdays in Shibuya"), asked to AI assistants like ChatGPT every month. You note whether the practice is cited, whether the information is correct and which sources appear. No serious provider promises that an AI assistant will recommend your practice: the goal is to be described correctly and more often.
A diagnostic usually reviews your priority Google positions, the consistency of your public information (business profile, site, directories in Japanese and English), current AI answers and a reasoned budget split.
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Illustrative example: "Aoyama Smile Dental Clinic", 3 dentists, spends 450,000 JPY a month (about 3,000 USD) on marketing. Its baseline record: cited in 3 answers out of 25 English questions, one of them with an old phone number.
It allocates 300,000 JPY to SEO and 150,000 JPY to AEO for 6 months, 2,700,000 JPY in total (about 18,000 USD). If SEO brings 6 extra consultations a month from month four, and one third leads to an average 400,000 JPY treatment, that is 2 treatments a month, 800,000 JPY. Over months 4 to 6 this amounts to 2,400,000 JPY, and the effect continues afterwards. On the AI side, the tracked goal is to move from 3/25 to 8/25 with no wrong information: a measurable goal, not a promise.
FAQ
Is SEO in Japanese enough to attract expats?
Rarely. Expats search in English and increasingly ask AI assistants, so clear English pages are needed. Plan for at least 3 to 5 treatment pages in English.
What does an AEO audit cost for a Tokyo dental practice?
Around 500,000 to 1,500,000 JPY (about 3,300 to 10,000 USD) depending on the number of questions and languages, 2026 ballpark. At Kolonell, this diagnostic is on quote.
Can we publish before/after photos?
Japanese medical advertising rules regulate them strictly, with mandatory information on the treatment, its price and its risks. Have each visual approved before publication.
How often should AI answers be measured?
A monthly record on the same 20 to 30 questions is enough to see a trend. Answers vary from day to day, which is why you compare series rather than a single test.
What minimum budget makes sense?
Under 300,000 JPY a month (about 2,000 USD), a one-off audit followed by SEO focused on a few profitable treatments works better. Splitting that budget across both channels rarely gives a measurable result.
Find out how AI assistants describe your firm. We record what Google and AI assistants like ChatGPT say today about your practice, in Japanese and English, then propose a split that fits your patients. Request a diagnostic quote: reply within 48 hours.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
