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AI Visibility Index · September 2026

Dentists in Madrid that AI assistants recommend

We asked ChatGPT, Claude, Gemini and Grok the four questions a buyer asks when looking for dentists in Madrid, three times each, in Spanish, and counted who they named. These are the businesses named in two or more of the 48 answers.

Check whether AI names youSee the ranking

Names are printed as the assistants wrote them. We have not checked that any of them is good, open, or real.

Dentists · Madrid
73%of answers named Ferrus & Bratos
Answers
48
Businesses named
33
Named only once
21
Named by 2+ assistants
10 of 12
Named again on a rerun
52%

Edition September 2026. Download the data

Asked for dentists in Madrid, ChatGPT, Claude, Gemini and Grok most often named Ferrus & Bratos (73% of answers), Clínica Dental Velázquez (52%) and Sanitas Dental (31%). Across 48 answers they named 33 different businesses, 21 of them only once. Each of four buyer questions was asked three times, in Spanish, in September 2026.

The ranking

Share is the fraction of the 48 answers that named a business. The range under it is a 95% confidence interval: where two ranges overlap, the gap between those businesses could be chance.

Dentists in Madrid named by AI assistants, September 2026
#BusinessShareChatGPTClaudeGeminiGrokQuestionsAvg. position
1Ferrus & BratosAlso written Clínica Dental Ferrus & Bratos, Clínica Dental Ferrus & Bratos — Madrid73%95%: 59 to 83%100%100%92%0%4 of 41.1
2Clínica Dental VelázquezAlso written Clínica Dental Velázquez — Madrid52%95%: 38 to 66%67%92%50%0%4 of 42.6
3Sanitas DentalAlso written Sanitas Dental Milenium Madrid, Clínica Dental Sanitas Milenium, Centro Odontológico Sanitas, Clínica Dental Sanitas, Sanitas Dental Madrid, Sanitas Dental Milenium31%95%: 20 to 45%33%25%58%8%4 of 43.5
4Clínica Dental Pardiñas23%95%: 13 to 37%17%0%75%0%3 of 42.4
5Instituto Profesor Sada17%95%: 9 to 30%33%33%0%0%3 of 42.9
6Adeslas DentalAlso written Clínica Dental Adeslas, Adeslas Dental Madrid15%95%: 7 to 27%8%0%50%0%3 of 42.9
7Clínica Dental Fernando Soria10%95%: 5 to 22%33%8%0%0%2 of 42.2
8BordonClinicAlso written Clínica Dental Bordonclinic10%95%: 5 to 22%17%25%0%0%2 of 42.8
9Clínica Dental Los Valles10%95%: 5 to 22%0%0%42%0%3 of 44.4
10Clínica Dental Dr. Iván Malagón8%95%: 3 to 20%0%0%33%0%2 of 43.5
11VitaldentAlso written Vitaldent — Clínicas de Madrid, Vitaldent Urgencias Dentales Madrid6%95%: 2 to 17%17%0%0%8%2 of 42
12Instituto Dental ImplanT4%95%: 1 to 14%8%8%0%0%1 of 43.5

Each assistant column is the share of that assistant's own answers. Questions counts how many of the four produced the name at least once; position is where it came in the answer's list, 1 being first. 21 more names came up in a single answer and are counted above but not listed.

What each assistant said

The same questions, the same number of times, and often different names. Each column is one assistant's top five from the ranking above, with the share of its own answers that named them.

#ChatGPTClaudeGeminiGrok
1Ferrus & Bratos100%Ferrus & Bratos100%Ferrus & Bratos92%Sanitas Dental8%
2Clínica Dental Velázquez67%Clínica Dental Velázquez92%Clínica Dental Pardiñas75%Vitaldent8%
3Sanitas Dental33%Instituto Profesor Sada33%Sanitas Dental58%No other name twice
4Instituto Profesor Sada33%Sanitas Dental25%Clínica Dental Velázquez50%
5Clínica Dental Fernando Soria33%BordonClinic25%Adeslas Dental50%

Grok named no business in 11 of its 12 answers.

Named here? Put it on your site

Every business in the ranking was named in two or more answers. The badge says that and nothing more: no position, because the ranges above do not support one. It links back to this page, so anyone can check.

Correct or remove a listing
Named by AI assistants: Dentists in Madrid, AIGROW AI Visibility Index, September 2026
<a href="https://aigrow.gg/index/dentists/madrid"><img src="https://aigrow.gg/badges/index/2026-09/dentists/madrid.svg" width="312" height="100" alt="Named by AI assistants: Dentists in Madrid, AIGROW AI Visibility Index, September 2026"></a>

The questions

Asked word for word, three times each, to every assistant through its API, in Spanish. The English under each is our translation. The prompt is the one the free scan uses. No web search, no location and no chat history, so every answer starts from the same place.

  1. 1¿Cuál es el mejor dentista de Madrid?Who is the best dentist in Madrid?
  2. 2Necesito un dentista en Madrid para una revisión y una limpieza. ¿Qué clínicas me recomiendas?I need a dentist in Madrid for a check-up and a cleaning. Which practices would you recommend?
  3. 3¿Qué clínica dental de Madrid es buena para implantes dentales?Which dental clinic in Madrid is good for dental implants?
  4. 4Tengo dolor de muelas y necesito un dentista de urgencia en Madrid. ¿A quién debería llamar?I have a toothache and need an emergency dentist in Madrid. Who should I call?

How to read this page

The full method
What it measures
Which names these models produce when asked cold, from what they learned in training. It is not a review, a rating or our recommendation, and a business missing here may simply be one the models were never shown.
Why the ranges matter
48 answers is a sample. Asked again next month, most shares will move by a few points; the ranges say how far they could move by chance alone.
One business, several spellings
Branches, legal suffixes and spellings of one business are merged, and the other spellings are printed under its name. Names that might be two businesses are kept apart.
A name is wrong
If a business here is closed, misnamed or yours and you want it removed, tell us. We correct or remove it when the page is next published.

Elsewhere in the Index

Dentists elsewhere
BarcelonaMálagaSevilleValenciaGuadalajaraMexico City
Also in Madrid
LawyersAccountantsPlumbersGymsReal estate agencies

Is your business on this list?

The free scan asks the same assistants the questions your customers ask, scores whether they name you, and lists who they name instead.

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Edition September 2026 · data under CC BY 4.0