Zahnarztpraxis St. Johann
According to our open methodology, this clinic scored 57.8/100 for transparency, reputation, service accessibility, and digital visibility.
Overall rank: #18 of 24 ranked clinics · Last checked: 8 September 2026
57.8/100
Positions by Rating Profile
- Overall Transparency & Trust#1857.8/100
- Best for Expats#1854.5/100
- Best for Dental Implants#1953/100
- Best for Emergency Dental Care#1758.3/100
- Best Price Transparency#1939.5/100
- Best English-speaking Clinics#1858.3/100
- Best for Families / Children#1360/100
- Sleep Dentistry (GA / deep sedation)#757.8/100
General Anaesthesia & Deep Sedation
Whether the clinic documents treatment under general anaesthesia or deep / twilight sedation — "sleep dentistry", where the patient is asleep and unaware (does not feel, see, or hear the procedure). Ordinary conscious sedation, where the patient stays awake and responsive, does not count here. This is informational and does not affect the transparency score.
- ✓ General anaesthesia / deep sedation (sleep dentistry) — General anaesthesia / deep sedation documented Nitrous-oxide treatment, hypnosis and general anaesthesia are three of the practice’s own published treatment pages. [s2]
Summary
Practice in the St. Johann quarter with two named dentists, both Basel graduates with published curricula vitae, a consulting oral surgeon, sixteen treatment pages including nitrous oxide, hypnosis and general anaesthesia, and German and English versions. It publishes its SSO Dentotar tariff point value but no service prices. Both dentists hold active Basel-Stadt practice authorisations recorded in MedReg at this address.
Strengths
- Information Transparency: 20 of 20 points.
- No red flags identified in public sources.
Weaknesses
- Price Transparency: 0 of 15 verifiable points (missing: prices or price ranges published; cleaning price listed; filling price listed; crown price listed; implant price listed; consultation price listed; x-ray / imaging price listed)
Score Breakdown
Every criterion below is scored from public sources. ✓ verified yes · ✗ verified no / not found · ◐ partial · ? unverified (scores 0, not a negative finding).
Information Transparency
20 / 20
Whether basic facts about the clinic - its team, premises, services, and location - are publicly verifiable.
| ✓ | Has a working website https://zahnarzt-stjohann.ch/de/team returned HTTP 200 with the practice’s own content in the body — named team with curricula vitae, address, telephone, e-mail — read on 2026-09-07. [s1] | 4/4 |
| ✓ | Dentist names listed The team page names Nathalie Oppliger and Angelo Vivacqua as the dentists with dated curricula vitae, Isabelle Berg-Börner as consulting oral surgeon, Elena Lüönd as dental hygienist and the named practice administrator and assistants. [s1] | 3/3 |
| ✓ | Dentist specializations listed The team page publishes fields against named people: Isabelle Berg-Börner as consulting oral surgeon, Nathalie Oppliger in postgraduate training for an MSc in orthodontics since April 2025, and Angelo Vivacqua’s oral and maxillofacial surgery placement and his doctorate. [s1] | 2/2 |
| ✓ | Real clinic photos Self-hosted portraits on the practice’s own domain, each alt text naming the person shown, taken in the practice. [s1] | 2/2 |
| ✓ | Service list published The offering page publishes sixteen treatments, each on its own page: anxious patients, aesthetic dentistry, dental hygiene, digital X-ray, hypnosis, oral surgery, implantology, children’s dentistry, nitrous oxide, myoarthropathies, general anaesthesia, periodontology, reconstructive dentistry, sports splints, root canal treatment and the tariff points page. [s2] | 3/3 |
| ✓ | Clear contact details Address St. Johanns-Vorstadt 58, 4056 Basel, telephone +41 61 322 03 37 and e-mail kontakt@zahnarzt-stjohann.ch are published in the footer of every page, with its own Facebook and Instagram links. [s1] | 2/2 |
| ✓ | English website version A complete English version at /en/ published by the practice itself, headed "Dental practice St. Johann, Basel". [s4] | 2/2 |
| ✓ | Address and map published The site publishes the postal address in the footer of every page together with a Google map of the practice loaded from its own page. [s1] | 2/2 |
Price Transparency
0 / 15
Whether patients can estimate costs before visiting. Published price ranges count; exact prices are not required.
| ✗ | Prices or price ranges published The practice publishes a tariff-points page of its own stating that it applies the SSO Dentotar system at a tariff point value of 1.18 and that it will produce a detailed cost estimate for any treatment on request, but no price or range for any individual service. [s3] | 0/3 |
| ✗ | Cleaning price listed [s3] | 0/2 |
| ✗ | Filling price listed [s3] | 0/2 |
| ✗ | Crown price listed [s3] | 0/2 |
| ✗ | Implant price listed [s3] | 0/2 |
| ✗ | Consultation price listed [s3] | 0/2 |
| ✗ | X-ray / imaging price listed [s3] | 0/2 |
Reputation & Reviews
11.5 / 20
Public review signals. The Google rating is adjusted with a Bayesian prior (rating 4.0, weight 25) so a 5.0 from a handful of reviews does not outrank a 4.8 from hundreds.
| ◐ | Google rating (Bayesian-adjusted) Re-read live on the place page in a browser on 2026-09-08 and unchanged at 4.9. The star histogram's weighted mean, 4.857, reproduces the published figure. [gmp1] [gmpb] | 4/6 |
| ◐ | Google review volume Confirmed on the place page in a browser on 2026-09-08: the headline reads 28 and the histogram sums to the same figure (27 five-star, 0 four-star, 0 three-star, 0 two-star, 1 one-star). [gmp1] [gmpb] | 1/3 |
| ◐ | Review recency Browser 2026-09-08, 8 visible reviews, sort: Google's own "Most relevant" order. The newest visible review is five months old; the rest run 7 months to 4 years. [gmpb] | 1.5/3 |
| ? | Clinic responds to reviews Only 4 reviews dated within the last 24 months were read, none with an owner reply; fewer than ten, so whether the owner answers reviews stays open. [zahnarztpraxis-st-johann-basel-deepen] | 0/2 |
| ✓ | No recurring complaints Browser 2026-09-08, 8 visible reviews, sort "Most relevant": no review below five stars surfaced and no repeated theme is readable. The single one-star rating is 1 of 28, so one-star and two-star ratings together are 3.6 per cent of the base. [gmpb] | 2/2 |
| ✓ | No suspicious review patterns Browser 2026-09-08: histogram 27/0/0/0/1 with a mean of 4.857 against a published 4.9; twenty-seven five-star ratings accumulated over more than four years on a profile with no owner engagement at all, with varied reviewers and wording. No manipulation signature. [gmpb] | 2/2 |
| ✓ | Active Facebook presence The practice links its own Facebook page facebook.com/zahnarztstjohann from the footer of every page. [s1] | 1/1 |
| ✗ | TripAdvisor presence No TripAdvisor listing found via its search for "Zahnarztpraxis St. Johann Basel" and "St. Johann"; the clinic's site does not link to TripAdvisor (checked 2026-10-05). [zahnarztpraxis-st-johann-basel-tripadvisor] [zahnarztpraxis-st-johann-basel-tripadvisor-2] | 0/0.5 |
| ✗ | Other review platforms No review profile found on WhatClinic, Trustpilot or local.ch, where ratings are switched off for its entry (checked 2026-10-01). [zahnarztpraxis-st-johann-basel-platforms] [zahnarztpraxis-st-johann-basel-platforms-2] [zahnarztpraxis-st-johann-basel-platforms-3] | 0/0.5 |
Medical Infrastructure
11 / 15
The range of publicly documented equipment and services. This measures documented availability, not clinical quality.
| ✓ | On-site X-ray Digital X-ray is one of the practice’s own sixteen published treatment pages. [s2] | 2/2 |
| ? | CBCT (3D imaging) | 0/2 |
| ✓ | Implantology Implantology is one of the practice’s own published treatment pages. [s2] | 2/2 |
| ? | Orthodontics One named dentist is published as being in postgraduate training for an MSc in orthodontics, but orthodontics is not among the sixteen treatments the practice publishes, so the service itself is not asserted either way. | 0/2 |
| ✓ | Oral surgery Oral surgery is one of the published treatment pages and the practice publishes a named consulting oral surgeon. [s1] [s2] | 2/2 |
| ✓ | Pediatric dentistry Children’s dentistry is one of the practice’s own published treatment pages, and "Pediatric dentist" is a category on its own Google Business Profile. [s2] [gmp1] | 1.5/1.5 |
| ✓ | Emergency care The practice publishes an emergency entry in its own main navigation on every page. [s1] | 1.5/1.5 |
| ✓ | Works with international patients The practice publishes a complete English version of its site. [s4] | 2/2 |
Communication & Service
5 / 10
How easy it is to contact the clinic, get answers, and book - especially for international patients.
| ✗ | WhatsApp / LINE available No WhatsApp, Line or comparable messaging channel is published on the practice’s own site; contact runs through the telephone and the e-mail address. [s1] | 0/2 |
| ? | Response speed | 0/1.5 |
| ✓ | English spoken The practice publishes a complete English version of its site. [s4] | 2.5/2.5 |
| ✓ | Pre-visit consultation possible The tariff-points page states that the practice draws up a detailed cost estimate for any treatment on request ("Auf Wunsch erstellen wir Ihnen für jede Behandlung einen detaillierten Kostenvoranschlag"). Verified live 2026-09-07. [s3] | 1.5/1.5 |
| ✓ | Clear service explanations Each of the sixteen treatments has its own page, and the tariff-points page explains in plain terms how the SSO Dentotar system and its point value produce a bill and where the public catalogue can be read. [s2] [s3] | 1/1 |
| ✗ | Convenient opening hours The full published week was read on the practice's own Google Business record in a browser on 2026-09-08: Monday 08:00-12:00 and 13:00-17:00, Tuesday to 17:30, Wednesday to 17:00, Thursday 07:00-12:00 and 13:00-18:30, Friday to 17:00, closed Saturday and Sunday. One early start and one 18:30 close is not evening surgery, and there are no weekend hours. [gmpb] | 0/1.5 |
AI & Search Visibility
4.5 / 10
Whether the clinic is discoverable when patients search - including via AI assistants. Checked with fixed queries: "best dentist Switzerland", "English speaking dentist Switzerland", "dental implants Switzerland", "emergency dentist Switzerland", "Switzerland dental clinic for expats".
| ✗ | Mentioned for: best dentist Switzerland Web search 2026-09-07, 10 results checked. The clinic does not appear in the recorded results for the query "best dentist Basel Switzerland", matched by its own domain and by its name in the result titles. [av1] | 0/1 |
| ✗ | Mentioned for: English speaking dentist Switzerland Web search 2026-09-07, 10 results checked. The clinic does not appear in the recorded results for the query "English speaking dentist Basel Switzerland", matched by its own domain and by its name in the result titles. [av2] | 0/1 |
| ✗ | Mentioned for: dental implants Switzerland Web search 2026-09-07, 6 results checked. The clinic does not appear in the recorded results for the query "dental implants Basel Switzerland", matched by its own domain and by its name in the result titles. [av3] | 0/1 |
| ✓ | Mentioned for: emergency dentist Switzerland Web search 2026-09-07, 7 results checked. The clinic appears in the recorded results for the query "emergency dentist Basel Switzerland", matched by its own domain and by its name in the result titles. [av4] | 1/1 |
| ? | Mentioned for: Switzerland dental clinic for expats Query not run in AI-visibility pass — the pre-pass of 2026-09-07 ran the expat query for the first research city of each country only, which for Switzerland is Zurich. | 0/1 |
| ✗ | Structured data on website The delivered HTML contains no application/ld+json block, so no schema.org markup is published. [s1] | 0/1.5 |
| ✓ | Google indexing quality The practice’s own domain takes five of the first nine results — German home page, contact, team, English home page and the offering page — with Doc24, Comparis, its own Facebook and Instagram, search.ch and local.ch below (web search 2026-09-07, 20 results). [giq1] | 2/2 |
| ✓ | Dedicated service pages Sixteen separate treatment URLs under /de/angebot/ rather than one combined page. [s2] | 1.5/1.5 |
Ranking leaders in AI answers
The queries above are this index's own check. The three leading clinics have also been measured in full: how often ChatGPT and Gemini name them when a patient asks them to recommend a dentist.
- #1ZurichDental Bahnhofplatz17.8 of 100View report → report in German
- #2CHD Clinique d'Hygiène Dentaire Genève Cornavin46.3 of 100View report → report in German
- #3Clinique Dentaire de Chantepoulet29.2 of 100View report → report in German
Measured by Ansmeter, 7 October 2026. Ansmeter is an affiliated service. Its figure is not part of this rating and does not affect positions — scores change only when public data changes.
Licensing & Credentials
Whether the clinic publishes its operating licence and the dentists working there together with their professional licence numbers. A verified “not published” is recorded as a red flag; data we have not checked yet is shown as unverified and carries no penalty.
Clinic operating licence: not checked against public sources yet — unverified, no penalty
Dentists & MedReg records
| Dentist | Specialization | MedReg No. | Notes |
|---|---|---|---|
| Dr. med. dent. Nathalie Oppliger [reg1] | Dentist; in postgraduate training for an MSc in orthodontics since April 2025 | MedReg 38688, GLN 7601000880901 | Cantonal authorisation to practise under own responsibility: granted and active, no restrictions. |
| Dr. med. dent. Angelo Vivacqua [reg1] | Dentist; oral and maxillofacial surgery placement, examiner for dental assistants in the canton of Aargau | MedReg 32817, GLN 7601000880970 | Cantonal authorisation to practise under own responsibility: granted and active, no restrictions. |
Red Flags
No red flags identified in the public sources we reviewed.
Data We Could Not Verify
- Reputation & Reviews: Clinic responds to reviews
- Medical Infrastructure: CBCT (3D imaging)
- Medical Infrastructure: Orthodontics
- Communication & Service: Response speed
- AI & Search Visibility: Mentioned for: Switzerland dental clinic for expats
Unverified items score 0 points but are not treated as negative findings. If you can document any of them, please send a correction.
Contact Information
| Website | https://zahnarzt-stjohann.ch/ |
|---|---|
| Phone | +41 61 322 03 37 |
| https://www.facebook.com/zahnarztstjohann/ | |
| Google Maps | Map listing |
| Address | St. Johanns-Vorstadt 58, 4056 Basel, Switzerland |
Contact details are provided for identification only and may change; verify with the clinic directly.
Sources
| ID | Source | What it supports | Accessed |
|---|---|---|---|
| s1 | https://zahnarzt-stjohann.ch/de/team | Named team with curricula vitae and roles, self-hosted portraits, address, telephone, e-mail, social accounts | 2026-09-07 |
| s2 | https://zahnarzt-stjohann.ch/de/angebot | Sixteen published treatments, each with its own page | 2026-09-07 |
| s3 | https://zahnarzt-stjohann.ch/de/angebot/taxpunkte | Tariff points page: SSO Dentotar system, tariff point value 1.18, cost estimate on request | 2026-09-07 |
| s4 | https://zahnarzt-stjohann.ch/en/ | English version of the practice site | 2026-09-07 |
| gmp1 | https://www.google.com/maps/preview/place/Zahnarztpraxis+St.+Johann… | Live Google Maps place: name, address, star rating, review count, pin coordinates, phone, website, business categories | 2026-09-07 |
| reg1 | https://www.healthreg-public.admin.ch/medreg/search | MedReg federal register: cantonal practice authorisations of Nathalie Oppliger (id 38688) and Angelo Vivacqua (id 32817), canton of Basel-Stadt, both at the card address | 2026-09-07 |
| reg2 | https://www.healthreg-public.admin.ch/betreg/search | BetReg federal facility register: queried for Basel dental companies and on the name Johann; this practice is not listed | 2026-09-07 |
| av1 | search:best dentist Basel Switzerland | Canonical visibility query (AI-visibility search pre-pass) | 2026-09-07 |
| av2 | search:English speaking dentist Basel Switzerland | Canonical visibility query (AI-visibility search pre-pass) | 2026-09-07 |
| av3 | search:dental implants Basel Switzerland | Canonical visibility query (AI-visibility search pre-pass) | 2026-09-07 |
| av4 | search:emergency dentist Basel Switzerland | Canonical visibility query (AI-visibility search pre-pass) | 2026-09-07 |
| giq1 | search:"Zahnarztpraxis St. Johann" Basel | Indexing check: the practice’s own domain takes five of the first nine results | 2026-09-07 |
| gmpb | https://www.google.com/maps/place/x/@47.564526,7.583809,17z/data=!4… | Live Google Maps place page opened in a browser on 2026-09-08: headline rating and review count, the five star-histogram buckets, eight most-relevant reviews with dates and owner-reply state, and the full published week of opening hours | 2026-09-08 |
| zahnarztpraxis-st-johann-basel-platforms | https://www.whatclinic.com/dentists/switzerland/basel | WhatClinic: its Basel dentist catalog (8 profiles of 9 declared) and its profile sitemaps (8 Basel profiles) have no profile for Zahnarztpraxis St. Johann (checked 2026-10-01) | 2026-10-01 |
| zahnarztpraxis-st-johann-basel-platforms-2 | https://www.trustpilot.com/review/zahnarzt-stjohann.ch | Trustpilot: no company page for zahnarzt-stjohann.ch (checked 2026-10-01) | 2026-10-01 |
| zahnarztpraxis-st-johann-basel-platforms-3 | https://www.local.ch/de/d/basel/4056/dental-clinic/zahnarztpraxis-s… | local.ch entry "Zahnarztpraxis St. Johann", St. Johanns-Vorstadt 58, 4056 Basel: ratings are switched off for this entry, so it carries no user ratings or reviews (checked 2026-10-01) | 2026-10-01 |
| zahnarztpraxis-st-johann-basel-deepen | https://www.google.com/maps?cid=1786466124393994783&hl=en | Google listing "Zahnarztpraxis St. Johann" (Dentist; St. Johanns-Vorstadt 58, 4056 Basel, Switzerland), read 2026-10-05 in 8 review orders (highest-rated first, lowest-rated first, newest first, most relevant first, highest-rated first, lowest-rated first, newest first, most relevant first (de interface)): 4.9 from 28 reviews (1★ 1 / 2★ 0 / 3★ 0 / 4★ 0 / 5★ 27); 10 distinct reviews read, dated 2020-09-15 to 2026-04-07, 0 with an owner reply. | 2026-10-05 |
| zahnarztpraxis-st-johann-basel-tripadvisor | https://www.tripadvisor.com/TypeAheadJson?action=API&details=true&q… | TripAdvisor's own search, read 2026-10-05: 12 suggestions for "Zahnarztpraxis St. Johann Basel" (3 places, 5 attractions, 2 hotels, 2 restaurants), none of them a dental practice in or near Basel; 12 suggestions for "St. Johann" (3 places, 5 attractions, 2 hotels, 2 restaurants), none of them a dental practice in or near Basel; no listing for this clinic | 2026-10-05 |
| zahnarztpraxis-st-johann-basel-tripadvisor-2 | https://zahnarzt-stjohann.ch/ | Clinic's website, home page read 2026-10-05: no link to a TripAdvisor page | 2026-10-05 |
Change History
| Date | Change |
|---|---|
| 2026-10-05 | TripAdvisor presence checked on 2026-10-05: no listing found for this clinic. |
| 2026-10-01 | Review platforms re-checked: no profile of the clinic on WhatClinic, Trustpilot or local.ch, so "reviewed on other platforms" changed from yes to no. |
| 2026-09-29 | Corrected 2026-09-29: clinic responds to reviews now unverified: only 8 reviews were checked for owner replies. |
| 2026-09-08 | Checked by hand in a browser: the 28-review headline confirmed against the histogram; recency, owner-reply state, complaint reading and manipulation reading recorded; the full published week of opening hours read and the criterion settled. |
| 2026-09-07 | Adversarial verification: preConsultationPossible raised to true on the practice's own published offer of a detailed written cost estimate on request; both MedReg records re-read live and confirmed at this address; the Google place re-read live and the 4.9 rating confirmed. |
| 2026-09-07 | Initial data collection: clinic site read body-first across the team, offering, tariff-points and English pages, which established the published tariff point value and the absence of service prices; Google Maps place record read live for rating, review count, coordinates, address, phone and business categories; MedReg queried for both named dentists and the full licence records read, both recorded at the card address; BetReg queried for Basel and on the quarter name with no dental entity found; the four canonical visibility queries taken from the AI-visibility pre-pass; indexing quality measured with a name search. |
A question or a correction?
Have a question, a suggestion, or a correction to this page? Get in touch — we read every message. Verified data corrections are reviewed against sources and applied with a public change-history entry.