July 2026
97 clinics in the Vale do Sousa region across AI answers
We measured 97 dental and aesthetic medicine clinics in the Vale do Sousa region across ChatGPT, Gemini and Perplexity. Eighty-four per cent were mentioned by none of the three platforms — and those that were cluster around a handful of repeating names.
- 97
- clinics measured
- 18
- measurements per clinic
- 84%
- with no mention at all
Method: 18 controlled measurements per clinic, with questions phrased as a patient would ask them and live search enabled on all three engines. July 2026.
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