Dr. Roberto Lhotka - Privatordination
According to our open methodology, this clinic scored 66.7/100 for transparency, reputation, service accessibility, and digital visibility.
Overall rank: #5 of 12 ranked clinics · Last checked: 23 September 2026
Positions by Rating Profile
- Overall Transparency & Trust#566.7/100
- Best for Expats#564.8/100
- Best for Dental Implants#761.5/100
- Best for Emergency Dental Care#668.3/100
- Best Price Transparency#445.3/100
- Best English-speaking Clinics#569.2/100
- Best for Families / Childrennot ranked
- Sleep Dentistry (GA / deep sedation)not ranked
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) — Not verified No anaesthesia/sedation info found on clinic site.
Summary
Private practice in the 1st district operating since 1998, offering preventive care and general dental treatment. Notes it offers the Pinhole gum technique; emergency appointments available.
Prices not published: the website says costs follow the treatment's complexity and that a cost plan is given before major procedures; the prices in its online shop are for the practice's own dental-care products.
Strengths
- Information Transparency: 20 of 20 points.
- Reputation & Reviews: 16 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
Whether basic facts about the clinic - its team, premises, services, and location - are publicly verifiable.
| ✓ | Has a working website [s1] | 4/4 |
| ✓ | Dentist names listed [s1] | 3/3 |
| ✓ | Dentist specializations listed [s1] | 2/2 |
| ✓ | Real clinic photos Own-hosted photo of the treatment room on the equipment page [dr-roberto-lhotka-deepen-8] | 2/2 |
| ✓ | Service list published [s1] | 3/3 |
| ✓ | Clear contact details [s1] [s2] | 2/2 |
| ✓ | English website version Full English site (40/40 pages) [dr-roberto-lhotka-deepen-2] | 2/2 |
| ✓ | Address and map published Köllnerhofgasse 6, 1010 Wien, with an embedded map on the website's contact page and a pin on the clinic's Google listing. [dr-roberto-lhotka-deepen-19] [dr-roberto-lhotka-deepen-20] [s2] | 2/2 |
Price Transparency
Whether patients can estimate costs before visiting. Published price ranges count; exact prices are not required.
Reputation & Reviews
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) as of 2026-09-23 [dr-roberto-lhotka-deepen-9] | 5/6 |
| ◐ | Google review volume as of 2026-09-23 [dr-roberto-lhotka-deepen-10] | 2/3 |
| ◐ | Review recency Newest exact review date 2026-06-19 [dr-roberto-lhotka-deepen-11] | 1.5/3 |
| ✓ | Clinic responds to reviews Owner replies to multiple reviews [dr-roberto-lhotka-deepen-12] | 2/2 |
| ✓ | No recurring complaints 1-2★ reviews are 7 of 105 (6.7%); no complaint theme in reviews read [dr-roberto-lhotka-deepen-13] | 2/2 |
| ✓ | No suspicious review patterns Histogram not uniform 5★, dates span 2022-2026, most reviewers have review history [dr-roberto-lhotka-refresh] | 2/2 |
| ✓ | Active Facebook presence [s2] | 1/1 |
| ✗ | TripAdvisor presence No TripAdvisor listing: two searches of TripAdvisor's own index on 2026-10-01 find nothing for the clinic; the practice's website does not link one. [dr-roberto-lhotka-deepen-21] [dr-roberto-lhotka-deepen-22] | 0/0.5 |
| ✓ | Other review platforms DocFinder, Herold, Arztsuche24. [s2] | 0.5/0.5 |
Medical Infrastructure
The range of publicly documented equipment and services. This measures documented availability, not clinical quality.
| ✓ | On-site X-ray Dedicated "Digital X-ray" section on the equipment page [dr-roberto-lhotka-deepen-14] | 2/2 |
| ✓ | CBCT (3D imaging) 3D imaging for guided implant planning, documented on the equipment page [dr-roberto-lhotka-deepen-15] | 2/2 |
| ✓ | Implantology Dedicated implants page [dr-roberto-lhotka-deepen-3] | 2/2 |
| ✓ | Orthodontics Aligner therapy for misaligned teeth documented on the equipment page [dr-roberto-lhotka-deepen] | 2/2 |
| ✓ | Oral surgery Dedicated surgery page (wisdom teeth) [dr-roberto-lhotka-deepen-4] | 2/2 |
| ? | Pediatric dentistry | 0/1.5 |
| ✓ | Emergency care Emergency appointments available. [s2] | 1.5/1.5 |
| ? | Works with international patients | 0/2 |
Communication & Service
How easy it is to contact the clinic, get answers, and book - especially for international patients.
| ✗ | WhatsApp / LINE available No WhatsApp/LINE contact found on the site [dr-roberto-lhotka-deepen-16] | 0/2 |
| ? | Response speed | 0/1.5 |
| ✓ | English spoken Dentist's own structured data declares English [dr-roberto-lhotka-deepen-6] | 2.5/2.5 |
| ✓ | Pre-visit consultation possible Online booking plus a direct inquiry option [dr-roberto-lhotka-deepen-5] | 1.5/1.5 |
| ✓ | Clear service explanations Treatment pages explain procedures and benefits, not just names [dr-roberto-lhotka-deepen-17] | 1/1 |
| ✓ | Convenient opening hours Mon-Thu 09:00-13:00 & 14:00-18:00; Fri by appointment. [s2] | 1.5/1.5 |
AI & Search Visibility
Whether the clinic is discoverable when patients search - including via AI assistants. Checked with fixed queries: "best dentist Vienna", "English speaking dentist Vienna", "dental implants Vienna", "emergency dentist Vienna", "Vienna dental clinic for expats".
| ✓ | Mentioned for: best dentist Vienna [sq] | 1/1 |
| ✗ | Mentioned for: English speaking dentist Vienna [sq] | 0/1 |
| ✗ | Mentioned for: dental implants Vienna [sq] | 0/1 |
| ✗ | Mentioned for: emergency dentist Vienna [sq] | 0/1 |
| ✗ | Mentioned for: Vienna dental clinic for expats [sq] | 0/1 |
| ✓ | Structured data on website Dentist entity in JSON-LD sitewide [dr-roberto-lhotka-deepen-18] | 1.5/1.5 |
| ✓ | Google indexing quality [sq] | 2/2 |
| ✓ | Dedicated service pages Distinct pages per service [dr-roberto-lhotka-deepen-7] | 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.
- #1Dr. Miona Jovanovic0 of 100View report → report in German
- #2Dr. Carina Wick6.5 of 100View report → report in German
- #2Zahnklinik Wien Döbling9.5 of 100View report → report in German
Measured by Ansmeter, 8 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 & dental chamber register entries
| Dentist | Specialization | Chamber entry | Notes |
|---|---|---|---|
| Dr. Roberto Lhotka [s1] [dr-roberto-lhotka-doclic] [dr-roberto-lhotka-doclic-2] | General and preventive dentistry | not published | Confirmed on the public register of Landeszahnärztekammer für Wien, which publishes no licence number. |
Red Flags
No red flags identified in the public sources we reviewed.
Data We Could Not Verify
- Medical Infrastructure: Pediatric dentistry
- Medical Infrastructure: Works with international patients
- Communication & Service: Response speed
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://drlhotka.com/ |
|---|---|
| Phone | +43 1 512 588 1 |
| https://www.facebook.com/DrRobertoLhotka/ | |
| Google Maps | Map listing |
| Address | Köllnerhofgasse 6, 1010 Wien, Austria |
Contact details are provided for identification only and may change; verify with the clinic directly.
Sources
| ID | Source | What it supports | Accessed |
|---|---|---|---|
| s1 | https://drlhotka.com/ | Name, dentist, services since 1998, Pinhole technique. | 2026-07-12 |
| s2 | https://www.herold.at/gelbe-seiten/wien/lBM3b/zahnarzt-dr-roberto-l… | Address, phone, hours, platform presence. | 2026-07-12 |
| sq | search:best dentist Vienna | AI/search visibility scout 2026-07-12 | 2026-07-12 |
| dr-roberto-lhotka-refresh | https://www.google.com/maps/place/Zahnarzt+Dr.+Roberto+Lhotka+-+Pri… | 5 shown reviews dated 2022-05-13 to 2026-06-19; 4 of 5 reviewers have multiple prior reviews (only one is a single-review account) | 2026-09-23 |
| dr-roberto-lhotka-doclic | https://wr.zahnaerztekammer.at/patientinnen/zahnaerztinnensuche | searched: Nachname=Lhotka — returned 'Lhotka Roberto (Dr.)' at Köllnerhofgasse 6, 1010 Wien, Niedergelassen — matches the clinic's address exactly. | 2026-08-26 |
| dr-roberto-lhotka-doclic-2 | https://www.gesundheit.gv.at/gda.html?term=Lhotka&state=Wien&category= | GDA-Suche cross-check: 'Dr. ROBERTO LHOTKA', Köllnerhofgasse 6, 1010 Wien (listed under category Ärztin/Arzt in this index; chamber register above confirms dental registration). | 2026-08-26 |
| dr-roberto-lhotka-deepen | https://drlhotka.com/en/ausstattung/ | Technology page: "Invisible Orthodontics – Aligner Therapy. Why aligners? Clear aligners correct misaligned teeth discreetly and comfortably – without fixed brackets" | 2026-09-23 |
| dr-roberto-lhotka-deepen-2 | https://drlhotka.com/en/ | Complete English translation of every read page, with hreflang de/en/x-default | 2026-09-23 |
| dr-roberto-lhotka-deepen-3 | https://drlhotka.com/en/implantate/ | Dedicated page titled "Dental Implants Vienna 1010 | Dr. Lhotka" | 2026-09-23 |
| dr-roberto-lhotka-deepen-4 | https://drlhotka.com/en/behandlungen/chirurgie/ | Dedicated page titled "Dental Surgery (for example Wisdom Teeth)" | 2026-09-23 |
| dr-roberto-lhotka-deepen-5 | https://drlhotka.com/en/kontakt/ | "Book an appointment, send an inquiry or call directly"; online booking via the practice's booking system | 2026-09-23 |
| dr-roberto-lhotka-deepen-6 | https://drlhotka.com/en/team/ | Page JSON-LD for the dentist: "knowsLanguage": ["de", "en"] | 2026-09-23 |
| dr-roberto-lhotka-deepen-7 | https://drlhotka.com/en/behandlungen/ | Separate pages for implants, surgery, root canal, prosthetics, apicoectomy, aesthetic dentistry, bleaching, pinhole technique and equipment | 2026-09-23 |
| dr-roberto-lhotka-deepen-8 | https://drlhotka.com/en/ausstattung/ | Image hosted on the clinic's own domain, alt text "Modern dental practice" | 2026-09-23 |
| dr-roberto-lhotka-deepen-9 | https://www.google.com/maps/place/Zahnarzt+Dr.+Roberto+Lhotka+-+Pri… | Google listing 2026-09-23: 4.7 from 105 reviews; histogram 5★97/4★0/3★1/2★0/1★7 | 2026-09-23 |
| dr-roberto-lhotka-deepen-10 | https://www.google.com/maps/place/Zahnarzt+Dr.+Roberto+Lhotka+-+Pri… | Google listing 2026-09-23: 105 reviews (was 106 at the 2026-08-25 check) | 2026-09-23 |
| dr-roberto-lhotka-deepen-11 | https://www.google.com/maps/place/Zahnarzt+Dr.+Roberto+Lhotka+-+Pri… | Google listing read 2026-09-23: newest of 5 shown reviews dated 2026-06-19 | 2026-09-23 |
| dr-roberto-lhotka-deepen-12 | https://www.google.com/maps/place/Zahnarzt+Dr.+Roberto+Lhotka+-+Pri… | Owner reply dated 2026-06-22 to a 2026-06-19 review: "Thank you so much for your kind words, Jeana..." | 2026-09-23 |
| dr-roberto-lhotka-deepen-13 | https://www.google.com/maps/place/Zahnarzt+Dr.+Roberto+Lhotka+-+Pri… | Histogram 5★97/4★0/3★1/2★0/1★7 of 105; all 5 reviews shown are positive | 2026-09-23 |
| dr-roberto-lhotka-deepen-14 | https://drlhotka.com/en/ausstattung/ | "Digital X-ray – minimal radiation" section header on the technology page | 2026-09-23 |
| dr-roberto-lhotka-deepen-15 | https://drlhotka.com/en/ausstattung/ | "3D Implant Planning & Guided Surgery" section: "The combination of 3D imaging and surgical guides enables maximum precision in implant positioning" | 2026-09-23 |
| dr-roberto-lhotka-deepen-16 | https://drlhotka.com/en/kontakt/ | Contact page offers phone, online booking and a written inquiry form; no WhatsApp or LINE number found | 2026-09-23 |
| dr-roberto-lhotka-deepen-17 | https://drlhotka.com/en/ausstattung/ | Sections such as "Why computer-guided surgery?" and "Your Benefit" explain what each technology/procedure does | 2026-09-23 |
| dr-roberto-lhotka-deepen-18 | https://drlhotka.com/en/ | Page JSON-LD includes @type "Dentist" sitewide (40/40 pages) | 2026-09-23 |
| dr-roberto-lhotka-deepen-19 | https://drlhotka.com/en/kontakt/ | Contact page (read 2026-09-30): address Köllnerhofgasse 6, 1010 Wien, with an embedded Google map of the practice; phone +43 1 512 5881; e-mail welcome@drlhotka.com; opening hours Mon-Thu 09:00-18:00; online booking and a contact form | 2026-09-30 |
| dr-roberto-lhotka-deepen-20 | https://www.google.com/maps?cid=15312289239424164995&hl=en | Google listing "Zahnarzt Dr. Roberto Lhotka - Privatordination Wien", managed by the business, read on 2026-09-30: address Köllnerhofgasse 6, 1010 Wien, with its map pin; phone +43 1 5125881; website drlhotka.com | 2026-09-30 |
| dr-roberto-lhotka-deepen-21 | https://www.tripadvisor.com/TypeAheadJson?action=API&query=Roberto%… | TripAdvisor's own search for "Roberto Lhotka" and for "Dr Lhotka Zahnarzt" (2026-10-01) returned unrelated places named Roberto and two dental practices in Germany, none in Vienna; no listing for this clinic | 2026-10-01 |
| dr-roberto-lhotka-deepen-22 | https://drlhotka.com/ | Clinic's website, read 2026-10-01 (home page): no link to a TripAdvisor page | 2026-10-01 |
Change History
| Date | Change |
|---|---|
| 2026-10-01 | Searched TripAdvisor on 2026-10-01 for the practice by the dentist's name and checked its website: no TripAdvisor listing, so TripAdvisor presence is recorded as absent. |
| 2026-09-30 | Re-read on 2026-09-30 on the clinic's own website (all pages) and Google listing: address and map now rest on the website's contact page, which embeds a map; the practice's e-mail address added to the contacts. |
| 2026-09-23 | Re-read on 2026-09-23: the clinic's full English and German website (implants, surgery, equipment, team and contact pages, plus its full sitemap) and its Google listing. Recorded: digital X-ray and 3D imaging for guided implant planning, in-house implant and wisdom-tooth surgery, aligner therapy, English spoken (per the dentist's own structured data), online booking with a direct inquiry option, clear service explanations, structured data present, and a Google rating of 4.7 from 105 reviews with active owner replies and no complaint pattern. Still unverified: TripAdvisor presence, pediatric care, and documented work with international patients beyond the multilingual site. |
| 2026-08-26 | License verification 2026-08-26 against Landeszahnärztekammer für Wien and GDA-Suche: Dr. Roberto Lhotka confirmed registered/Niedergelassen at the clinic's address; no separate clinic-level facility licence exists for this solo Ordination. |
| 2026-08-25 | Re-verification 2026-08-25: confirmed website live, address, and open status; Google Maps confirms stored phone +43 1 512 588 1 (a same-day site re-read had suggested a different number, but Maps agrees with the stored value, so no phone change made); captured first Google rating 4.7 (106 reviews). |
| 2026-07-12 | Initial data collection. |
A question or a correction?
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