Optimal Dental Oslo
According to our open methodology, this clinic scored 74.4/100 for transparency, reputation, service accessibility, and digital visibility.
Overall rank: #5 of 20 ranked clinics · Last checked: 8 September 2026
Positions by Rating Profile
- Overall Transparency & Trust#574.4/100
- Best for Expats#569.5/100
- Best for Dental Implants#1168.8/100
- Best for Emergency Dental Care#865.2/100
- Best Price Transparency#981.4/100
- Best English-speaking Clinics#470.2/100
- 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.
Summary
Dental clinic in central Oslo with five named dentists, one of them a stated specialist in oral surgery. On its own site the clinic publishes a grouped treatment catalogue — general dentistry, emergency care, complex treatment, aesthetics and function, bite and orthodontics, digital services — a dedicated English page and an itemised NOK price list of 25 treatments. Emergency care is published daily from 08.00 to 20.00; general anaesthesia and deep sedation are not documented, and the site says nothing either way about x-ray and CBCT equipment.
Strengths
- Information Transparency: 20 of 20 points.
- Price Transparency: 13 of 15 points.
- Reputation & Reviews: 16.5 of 20 points.
- No red flags identified in public sources.
Weaknesses
No category fell below the weakness threshold (50% of verifiable points).
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 Own domain resolves and returns a live clinic page in this pass (checked 2026-09-07). [s1] | 4/4 |
| ✓ | Dentist names listed The clinic's own /om-oss-2/ page publishes its dentists by name: Bo Sun (dagligleder og tannlege), Xiaoqian Li, Jaehyun Sim, Arne Woldhaug, Seo-Ih Jon. Read live 2026-09-07. [s4] | 3/3 |
| ✓ | Dentist specializations listed The same page states a qualification for a named dentist: Jaehyun Sim — "Spesialist i oral kirurgi" (specialist in oral surgery). [s4] | 2/2 |
| ✓ | Real clinic photos Own-domain premises photographs with camera-original filenames (AD4I2286.jpg, DSC00351.jpg, DSC00293.jpg, DSC00233.jpg), not stock imagery. [s1] [s4] | 2/2 |
| ✓ | Service list published Own /behandlinger/ page publishes a grouped catalogue (general dentistry, emergency, complex treatment, aesthetic and functional, bite and orthodontics, digital services). [s5] | 3/3 |
| ✓ | Clear contact details Street address, phone number and (where present) booking contact are published on the clinic’s own site. [s1] | 2/2 |
| ✓ | English website version Dedicated English page ("english-2"), read live 2026-09-07. [s1] | 2/2 |
| ✓ | Address and map published Address confirmed on the clinic’s own site and cross-checked against a live Google Maps place lookup on 2026-09-07. [s1] [s3] | 2/2 |
Price Transparency
Whether patients can estimate costs before visiting. Published price ranges count; exact prices are not required.
| ✓ | Prices or price ranges published Refuted the research pass's "only one isolated NOK figure (kr 700)": the same /priser/ page publishes a permanent itemised list of 25 named treatments with NOK prices, read live 2026-09-07 (examination, periodontal treatment, four filling tiers, three root-canal tiers, crown/bridge, extractions, wisdom-tooth surgery, whitening, splints, implant, dentures, Invisalign, hourly rates). [s2] | 3/3 |
| ✓ | Cleaning price listed "Tannundersøkelse og grundig rens" fra kr 1.250, tiered by duration (15–30 min 1.250 / 30–45 min 1.650 / 45–60 min 2.100). [s2] | 2/2 |
| ✓ | Filling price listed "Tannfarget fylling, en flate" fra kr 1.250 through "fire flater" fra kr 2.350. [s2] | 2/2 |
| ✓ | Crown price listed "Krone, bro per ledd" fra kr 8.500 inkl. tannteknikker. [s2] | 2/2 |
| ✓ | Implant price listed "Implantert" fra kr 27.000. [s2] | 2/2 |
| ✓ | Consultation price listed "Akutt undersøkelse" fra kr 700 and "Tannundersøkelse og grundig rens" fra kr 1.250. [s2] | 2/2 |
| ✗ | X-ray / imaging price listed Verified negative: the clinic's own permanent price list carries 25 priced lines but no imaging line (no røntgen, OPG or CBCT), and no price is quoted on the treatment pages either. [s2] | 0/2 |
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) Confirmed on the live place page 2026-09-08. Star histogram: 107 five-star, 3 four-star, 0 three-star, 0 two-star, 1 one-star; the buckets sum to 111, exactly the header count, and the weighted mean 4.937 reproduces the published 4.9. [gmpb] | 6/6 |
| ◐ | Google review volume Confirmed against the place-page header 2026-09-08; the star histogram sums to the same figure. [gmpb] | 2/3 |
| ✓ | Review recency The newest visible review is 3 months old. Sample: the 8 reviews the place page's Reviews tab renders in Google's own Most-relevant order; a newest-first list was not available. [gmpb] | 3/3 |
| ✗ | Clinic responds to reviews None of the 14 reviews read, 10 of them dated within the last 24 months (newest 2026-09-17), carries an owner reply, and the reply block of the listing was readable. [optimal-dental-oslo-oslo-deepen-4] | 0/2 |
| ✓ | No recurring complaints No negative review surfaced in the visible sample and the histogram holds a single one-star: negative mass 1 of 111 = 0.9 per cent. Same relevance-ordered sample. [gmpb] | 2/2 |
| ✓ | No suspicious review patterns Dates spread across two years, varied reviewers, no burst. Same relevance-ordered sample. [gmpb] | 2/2 |
| ✓ | Active Facebook presence The clinic’s own site links its Facebook page. [s1] | 1/1 |
| ✗ | TripAdvisor presence No TripAdvisor listing found via its search for "Optimal Dental Oslo Oslo" and "Optimal dental"; the clinic's site does not link to TripAdvisor. [optimal-dental-oslo-oslo-deepen] [optimal-dental-oslo-oslo-deepen-2] | 0/0.5 |
| ✓ | Other review platforms Legelisten.no, the Norwegian dentist review site, has a page for the practice at the same address and phone: 4.0 of 5 from 11 patient reviews (newest 10 February 2026). [optimal-dental-oslo-oslo-deepen-3] | 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 Not established either way: the clinic's own treatment catalogue and its 25-line price list were both read live 2026-09-07 and neither names radiography (the catalogue's imaging entry is "3D-skanning og registrering", i.e. intraoral scanning for digital impressions). Absence from a treatment-oriented catalogue is not evidence that the equipment is absent, so this is recorded as unchecked rather than as a verified negative. | 0/2 |
| ? | CBCT (3D imaging) Not established either way, for the same reason as hasXray: the clinic's own catalogue and price list document intraoral 3D scanning but say nothing about cone-beam CT in either direction. | 0/2 |
| ✓ | Implantology Dedicated /tannimplantat/ page and a published implant price (fra kr 27.000). [s5] [s2] | 2/2 |
| ✓ | Orthodontics Invisalign / "usynlig tannregulering" on the treatment catalogue and priced at fra kr 35.000. [s5] [s2] | 2/2 |
| ✓ | Oral surgery "Trekke visdomstann hos oral kirurgi spesialist" in the catalogue; the clinic's own team page names Jaehyun Sim, Spesialist i oral kirurgi; wisdom-tooth surgery is priced (fra kr 3.500 / specialist fra kr 4.100). [s4] [s5] | 2/2 |
| ✗ | Pediatric dentistry Verified negative: the clinic's own treatment catalogue publishes no children's dentistry service. [s5] | 0/1.5 |
| ✓ | Emergency care The clinic publishes "Akutt tannlegevakt alle dager 08.00 – 20.00" and a dedicated /akutt-behov-for-tannlege/ page; "Akutt time" is a catalogue entry and "Akutt undersøkelse" is priced. [s1] [s5] | 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 Verified negative: no wa.me / api.whatsapp.com contact link on the clinic's own site (the "WhatsApp" string present is a share-button plugin configuration), checked 2026-09-07. [s1] | 0/2 |
| ? | Response speed | 0/1.5 |
| ✓ | English spoken The clinic publishes a dedicated English page (/english-2/). [s1] | 2.5/2.5 |
| ? | Pre-visit consultation possible | 0/1.5 |
| ✓ | Clear service explanations Each treatment has its own plain-language page explaining the procedure. [s5] | 1/1 |
| ✓ | Convenient opening hours Opening hours published on the live Google Maps listing: "Open · closes 6 pm" (read 2026-09-07). [s3] | 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 Norway", "English speaking dentist Norway", "dental implants Norway", "emergency dentist Norway", "Norway dental clinic for expats".
| ✓ | Mentioned for: best dentist Norway Clinic’s own domain/name appears in the ranked results returned by the AI-visibility search pass for this canonical query. [av1] | 1/1 |
| ✗ | Mentioned for: English speaking dentist Norway Clinic’s own domain/name checked against the ranked results returned by the AI-visibility search pass for this canonical query and not found there. [av1] | 0/1 |
| ✗ | Mentioned for: dental implants Norway Clinic’s own domain/name checked against the ranked results returned by the AI-visibility search pass for this canonical query and not found there. [av1] | 0/1 |
| ✓ | Mentioned for: emergency dentist Norway Clinic’s own domain/name appears in the ranked results returned by the AI-visibility search pass for this canonical query. [av1] | 1/1 |
| ✗ | Mentioned for: Norway dental clinic for expats Clinic’s own domain/name checked against the ranked results returned by the AI-visibility search pass for this canonical query and not found there. [av1] | 0/1 |
| ✓ | Structured data on website Two schema.org JSON-LD blocks on the clinic's own homepage, including a Dentist node with description and address (read 2026-09-07). [s1] | 1.5/1.5 |
| ? | Google indexing quality | 0/2 |
| ✓ | Dedicated service pages Fifteen individual treatment pages linked from /behandlinger/. [s5] | 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.
- #1Ty Dental Clinic (Midtbyen)49 of 100View report →
- #2Torshov Tannlegesenter19.3 of 100View report →
- #3Tannlegene på Sinsen40.6 of 100View report →
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 & professional licences
| Dentist | Specialization | Licence No. |
|---|---|---|
| Bo Sun [s4] | — | not verified |
| Xiaoqian Li [s4] | — | not verified |
| Jaehyun Sim [s4] | Spesialist i oral kirurgi (specialist in oral surgery) | not verified |
| Arne Woldhaug [s4] | — | not verified |
| Seo-Ih Jon [s4] | — | not verified |
Dentists are named; their licence numbers have not been checked against public sources yet — unverified, no penalty.
Red Flags
No red flags identified in the public sources we reviewed.
Data We Could Not Verify
- Medical Infrastructure: On-site X-ray
- Medical Infrastructure: CBCT (3D imaging)
- Medical Infrastructure: Works with international patients
- Communication & Service: Response speed
- Communication & Service: Pre-visit consultation possible
- AI & Search Visibility: Google indexing quality
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://optimaldentaloslo.no/ |
|---|---|
| Phone | +47 41 28 50 85 |
| https://www.facebook.com/optimaldentaloslo | |
| Google Maps | Map listing |
| Address | Tordenskiolds gate 7, 0160 Oslo, Norway |
Contact details are provided for identification only and may change; verify with the clinic directly.
Sources
| ID | Source | What it supports | Accessed |
|---|---|---|---|
| s1 | https://optimaldentaloslo.no/english-2/ | Own website (English page): address, phone, opening hours, Facebook link | 2026-09-07 |
| s2 | https://optimaldentaloslo.no/priser/ | Own permanent price page: 25 named treatments with NOK prices (examination and cleaning tiers, periodontal treatment, emergency examination, four filling tiers, three root-canal tiers, crown/bridge, extractions, wisdom-tooth surgery incl. specialist, whitening, splints, snoring appliance, implant, dentures, Invisalign, hourly rates). No imaging line. | 2026-09-07 |
| s3 | https://www.google.com/search?tbm=map&q=Optimal+Dental+Oslo | Live Google Maps place lookup: rating 4.9, address, phone, opening hours, geo | 2026-09-07 |
| av1 | search:best dentist Oslo | Canonical aiVisibility pass, 2026-09-07 | 2026-09-07 |
| s4 | https://optimaldentaloslo.no/om-oss-2/ | Own "About us" page: clinic history (established 2014) and the named dentist team including Jaehyun Sim, Spesialist i oral kirurgi | 2026-09-07 |
| s5 | https://optimaldentaloslo.no/behandlinger/ | Own treatment catalogue grouped into general, emergency, complex, aesthetic/functional, bite-and-orthodontics and digital services, each with its own page | 2026-09-07 |
| gmpb | https://www.google.com/maps/place/Optimal+Dental/@59.9128085,10.736… | Live Google Maps place page opened in a browser (the manual browser check): rating, review count, star histogram, review dates, owner replies | 2026-09-08 |
| optimal-dental-oslo-oslo-deepen | https://www.tripadvisor.com/TypeAheadJson?action=API&query=Optimal%… | TripAdvisor's own search read 2026-10-02: "Optimal Dental Oslo Oslo" returned 12 results (places, attractions and hotels) and "Optimal dental" 12 results (attractions and hotels); none of them is a dental clinic in Norway. | 2026-10-02 |
| optimal-dental-oslo-oslo-deepen-2 | https://optimaldentaloslo.no/ | Clinic's own site read 2026-10-02 (optimaldentaloslo.no, optimaldentaloslo.no/om-oss-2, optimaldentaloslo.no/om-oss-2/jobb, optimaldentaloslo.no/contact): no link to TripAdvisor on the pages read. | 2026-10-02 |
| optimal-dental-oslo-oslo-deepen-3 | https://www.legelisten.no/klinikker/3811-optimal-dental | Legelisten.no practice page "Optimal Dental", Tordenskiolds gate 7, 0160 Oslo, phone 41 28 50 85, website optimaldentaloslo.no: rated 4.0 of 5 from 11 patient reviews, the newest dated 10 February 2026, with its own "Skriv ny vurdering" (write a review) form; read 2026-10-02. | 2026-10-02 |
| optimal-dental-oslo-oslo-deepen-4 | https://www.google.com/maps?cid=11524712237827036228&hl=en | Google listing "Optimal Dental" (Dentist, Dental clinic), read 2026-10-05 in three review orders (the five lowest-rated, the five newest and the five most relevant): rated 4.9 from 113 reviews (1★ 1 / 2★ 0 / 3★ 0 / 4★ 3 / 5★ 109); 14 distinct reviews read, dated 2019-10-21 to 2026-09-17, 0 with an owner reply | 2026-10-05 |
Change History
| Date | Change |
|---|---|
| 2026-10-05 | Read the clinic's Google listing on 2026-10-05 (its lowest-rated and newest reviews with the star histogram): no owner replies found. |
| 2026-10-02 | Presence on review platforms checked on 2026-10-02: no TripAdvisor listing (its search and the clinic's site read); a Legelisten.no review page found. |
| 2026-09-29 | Corrected 2026-09-29: clinic responds to reviews now unverified: only 8 reviews were checked for owner replies. |
| 2026-09-08 | Browser reputation pass (I-3): live Google place page opened; rating and count confirmed with the full histogram, recency, owner replies (none on any visible review), complaint reading and manipulation check recorded. googleMapsUrl replaced with the place URL. |
| 2026-09-07 | Adversarial verification: the research pass recorded pricesPublished null on the note "only one isolated NOK figure (kr 700)" — re-reading the same /priser/ URL live on 2026-09-07 returned a permanent list of 25 named treatments with prices, so five price fields are now verified true and xrayPriceListed is a verified false (the list carries no imaging line). The clinic's own team and treatment pages were opened, giving five named dentists (now in licensing.doctors with honest null licences), a stated specialisation (Jaehyun Sim, oral surgery), real premises photos, five infrastructure facts, structured data and dedicated service pages. Rating 4.9 re-confirmed and a live review count of 111 recorded. |
| 2026-09-07 | Initial data collection: own website (English page) and a live Google Maps place lookup. Price page checked but only one isolated figure found — pricesPublished left null rather than false or true. aiVisibility filled from the AI-visibility pass. Reputation beyond rating and licensing left null for the reasons stated on every card in this file. |
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.