Place
Amsterdam, Netherlands
Measured
Questions asked in
English
Models
ChatGPT (GPT-5.6 Luna) and Gemini (Gemini 3.6 Flash)
Answers
180 (3 runs of 60)
Clinics tracked
9

The clinics we tracked

Each cell counts the answers that named the clinic out of the answers in which we tracked it, then the share and the range it would most likely fall in if we asked again (95 %).

Clinic All answers ChatGPT Gemini Without web search With web search
0900Dentist0900dentist.com 16 of 1809 % · 6–14 % 14 of 9016 % · 10–24 % 2 of 902 % · <1–8 % 0 of 1080–3 % 16 of 7222 % · 14–33 %
AltaDent Clinic Amsterdamaltadent.nl 19 of 18011 % · 7–16 % 14 of 9016 % · 10–24 % 5 of 906 % · 2–12 % 0 of 1080–3 % 19 of 7226 % · 18–38 %
Amstel Dentalamsteldental.nl 2 of 1801 % · <1–4 % 2 of 902 % · <1–8 % 0 of 900–4 % 0 of 1080–3 % 2 of 723 % · <1–10 %
Amsterdams Centrum voor Cosmetische Tandheelkundeacct.nl 6 of 1803 % · 2–7 % 1 of 901 % · <1–6 % 5 of 906 % · 2–12 % 0 of 1080–3 % 6 of 728 % · 4–17 %
Dental Clinics Amsterdam Reguliersgrachtdentalclinics.nl 3 of 1802 % · <1–5 % 3 of 903 % · 1–9 % 0 of 900–4 % 0 of 1080–3 % 3 of 724 % · 1–12 %
Dental Practice Jacob Obrechttandarts-jacobobrecht.nl 13 of 1807 % · 4–12 % 9 of 9010 % · 5–18 % 4 of 904 % · 2–11 % 0 of 1080–3 % 13 of 7218 % · 11–28 %
Lassus Tandartsenlassustandartsen.nl 139 of 18077 % · 71–83 % 57 of 9063 % · 53–73 % 82 of 9091 % · 83–95 % 87 of 10881 % · 72–87 % 52 of 7272 % · 61–81 %
Tandartspraktijk De Liefdetandartspraktijkdeliefde.nl 57 of 18032 % · 25–39 % 16 of 9018 % · 11–27 % 41 of 9046 % · 36–56 % 23 of 10821 % · 15–30 % 34 of 7247 % · 36–59 %
TTH van Wou Tandartsenpraktijktthvanwou.nl 1 of 180<1 % · <1–3 % 1 of 901 % · <1–6 % 0 of 900–4 % 0 of 1080–3 % 1 of 721 % · <1–8 %

Where the answers disagree

For these clinics the two ranges do not overlap, so the difference is larger than repeated asking would explain.

With and without web search

ChatGPT and Gemini

In the models' words

Lines from the answers, verbatim apart from formatting.

Lassus Tandartsen — A well-known Amsterdam practice group with several locations. They generally cater well to international residents and offer routine dentistry, hygiene, crowns, implants, and cosmetic treatments. Convenient if you want a larger practice with multiple dentists.

ChatGPT (GPT-5.6 Luna), without web search, asked: Which dentists and dental clinics in Amsterdam, Netherlands would you recommend?

If I had to choose a balanced initial shortlist without knowing your neighborhood or treatment, I would contact Lassus Tandartsen, Tandartspraktijk De Liefde, and Dental Clinic van Mill, then compare the earliest appointment, dentist assigned, proposed examination and price estimate.

ChatGPT (GPT-5.6 Luna), with web search, asked: Which dentists and dental clinics in Amsterdam, Netherlands are considered the most trustworthy?

Lassus Tandartsen is one of the largest and most well-known high-end practices in Amsterdam, with locations on Lassusstraat, Keizersgracht, and Olympic Park. They offer a full range of services—from general dentistry and hygiene to complex implantology, endodontics, and cosmetic dentistry.

Gemini (Gemini 3.6 Flash), without web search, asked: Give me a top-10 list of the best dentists and dental clinics in Amsterdam, Netherlands.

Practices like Lassus Tandartsen and Tandarts Jordaan offer dedicated emergency and out-of-hours coverage. Alternatively, the Tandartsspoedpraktijk (Emergency Dental Practice) operates out of OLVG Hospital for overnight emergencies.

Gemini (Gemini 3.6 Flash), with web search, asked: Give me a top-10 list of the best dentists and dental clinics in Amsterdam, Netherlands.

Other names in the answers

The models brought these up on their own. We did not track them, so there is no share: the number is how many of the 180 answers mentioned the name. Hospitals, insurers, professional bodies and treatment brands appear here as the models wrote them.

  • ACTA 62
  • Nederlandse Zorgautoriteit 59
  • Tandartsenpraktijk Jordaan 45
  • Dental365 43
  • Invisalign 36
  • BIG-register 33
  • NZa 33
  • University of Amsterdam 31
  • Vrije Universiteit 31
  • KNMT 30
  • De Amsterdamse Tandarts 29
  • Tandarts Jordaan 28

The 18 questions

As we asked them. Each line under a question counts its answers and the tracked clinics they named.

Open request for a recommendation

  • What are the best dentists and dental clinics in Amsterdam, Netherlands?

    12 answers, with and without web search. Named: 0900Dentist (3 of 12), AltaDent Clinic Amsterdam (3 of 12), Amsterdams Centrum voor Cosmetische Tandheelkunde (1 of 12), Dental Clinics Amsterdam Reguliersgracht (1 of 12), Dental Practice Jacob Obrecht (3 of 12), Lassus Tandartsen (12 of 12), Tandartspraktijk De Liefde (4 of 12).

  • Which dentists and dental clinics in Amsterdam, Netherlands would you recommend?

    12 answers, with and without web search. Named: 0900Dentist (1 of 12), AltaDent Clinic Amsterdam (1 of 12), Amsterdams Centrum voor Cosmetische Tandheelkunde (1 of 12), Dental Practice Jacob Obrecht (1 of 12), Lassus Tandartsen (12 of 12), Tandartspraktijk De Liefde (5 of 12).

Request for a ranked list

  • Give me a top-10 list of the best dentists and dental clinics in Amsterdam, Netherlands.

    12 answers, with and without web search. Named: 0900Dentist (4 of 12), AltaDent Clinic Amsterdam (3 of 12), Amstel Dental (1 of 12), Amsterdams Centrum voor Cosmetische Tandheelkunde (4 of 12), Dental Clinics Amsterdam Reguliersgracht (1 of 12), Dental Practice Jacob Obrecht (3 of 12), Lassus Tandartsen (12 of 12), Tandartspraktijk De Liefde (7 of 12), TTH van Wou Tandartsenpraktijk (1 of 12).

Who can be trusted

  • Which dentists and dental clinics in Amsterdam, Netherlands are considered the most trustworthy?

    12 answers, with and without web search. Named: 0900Dentist (2 of 12), AltaDent Clinic Amsterdam (3 of 12), Amstel Dental (1 of 12), Dental Practice Jacob Obrecht (1 of 12), Lassus Tandartsen (12 of 12), Tandartspraktijk De Liefde (8 of 12).

  • Which dentists and dental clinics in Amsterdam, Netherlands are most often recommended for the way they treat people?

    12 answers, with and without web search. Named: Dental Clinics Amsterdam Reguliersgracht (1 of 12), Dental Practice Jacob Obrecht (1 of 12), Lassus Tandartsen (10 of 12), Tandartspraktijk De Liefde (7 of 12).

Comparing options

  • Compare the best dentists and dental clinics in Amsterdam, Netherlands by quality, reputation, price and waiting times.

    12 answers, with and without web search. Named: 0900Dentist (3 of 12), AltaDent Clinic Amsterdam (3 of 12), Dental Practice Jacob Obrecht (1 of 12), Lassus Tandartsen (12 of 12), Tandartspraktijk De Liefde (5 of 12).

Who the experts are

  • Which dentists and dental clinics in Amsterdam, Netherlands have the strongest reputation?

    12 answers, with and without web search. Named: 0900Dentist (3 of 12), AltaDent Clinic Amsterdam (2 of 12), Dental Practice Jacob Obrecht (1 of 12), Lassus Tandartsen (12 of 12), Tandartspraktijk De Liefde (7 of 12).

Alternatives

  • Which dentists and dental clinics in Amsterdam, Netherlands are good alternatives if I'm not happy with the place I go to now?

    6 answers, without web search. Named: Lassus Tandartsen (6 of 6), Tandartspraktijk De Liefde (2 of 6).

A patient's constraint

  • I need one place for two things: a check-up with a professional cleaning, and teeth straightening with braces or aligners. Which dentists and dental clinics in Amsterdam, Netherlands cover both?

    6 answers, without web search. Named: Lassus Tandartsen (5 of 6).

  • I'm looking for implants to replace missing teeth. Which dentists and dental clinics in Amsterdam, Netherlands would you recommend?

    6 answers, without web search. Named: Lassus Tandartsen (5 of 6), Tandartspraktijk De Liefde (2 of 6).

  • Where can I get urgent help with a toothache in Amsterdam, Netherlands?

    6 answers, without web search. Named: Lassus Tandartsen (2 of 6).

A trade-off

  • Two things matter to me: teeth straightening with braces or aligners, and clear prices before treatment starts. Which dentists and dental clinics in Amsterdam, Netherlands are best at each?

    12 answers, with and without web search. Named: Lassus Tandartsen (3 of 12).

Exploring options

  • I'm choosing among dentists and dental clinics in Amsterdam, Netherlands and I want urgent help with a toothache. What are my best options?

    12 answers, with and without web search. Named: AltaDent Clinic Amsterdam (1 of 12), Lassus Tandartsen (6 of 12), Tandartspraktijk De Liefde (1 of 12).

A problem to solve

  • Which dentists and dental clinics in Amsterdam, Netherlands would you suggest as a replacement? I'm tired of the place I go to now.

    12 answers, with and without web search. Named: AltaDent Clinic Amsterdam (3 of 12), Dental Practice Jacob Obrecht (2 of 12), Lassus Tandartsen (10 of 12), Tandartspraktijk De Liefde (3 of 12).

A specialist need

  • Mine is a demanding case and I need implants to replace missing teeth. Which dentists and dental clinics in Amsterdam, Netherlands have the best specialists for it?

    12 answers, with and without web search. Named: Lassus Tandartsen (3 of 12).

Budget

  • I need clear prices before treatment starts and my budget is tight. Which dentists and dental clinics in Amsterdam, Netherlands are on the cheaper side?

    12 answers, with and without web search. Named: Lassus Tandartsen (5 of 12), Tandartspraktijk De Liefde (2 of 12).

A specific treatment

  • I need a check-up with a professional cleaning. Which dentists and dental clinics in Amsterdam, Netherlands are a good fit?

    6 answers, without web search. Named: Lassus Tandartsen (6 of 6), Tandartspraktijk De Liefde (2 of 6).

Switching dentist

  • I want to switch. Which dentists and dental clinics in Amsterdam, Netherlands do people usually move to?

    6 answers, without web search. Named: Lassus Tandartsen (6 of 6), Tandartspraktijk De Liefde (2 of 6).

How Amsterdam was measured

Each of the 18 questions went to ChatGPT and to Gemini, in 3 separate runs; 12 of them were asked twice, with the model's web search off and on. A question that itself named a clinic is left out, since its answer would name that clinic by force. The clinics we tracked are the ones we chose to measure in Amsterdam and the clinics they compete with for the same patients.

Ansmeter Benchmark v2.0, methodology 2026.10, prompt library 2026.10-service-voice. The method and its limits: Methodology. The table as a file: data.csv.

We ran this measurement on our own initiative; no clinic asked for it or paid for it. If a clinic's name or website is wrong here, write to us and we will correct it.

All 86 cities and every clinic