山道歯科 国際矯正・インプラントクリニック (Yamamichi Dental Clinic)
According to our open methodology, this clinic scored 83.3/100 for transparency, reputation, service accessibility, and digital visibility.
Overall rank: #1 of 21 ranked clinics · Last checked: 6 September 2026
83.3/100
Positions by Rating Profile
- Overall Transparency & Trust#183.3/100
- Best for Expats#280.5/100
- Best for Dental Implants#280.7/100
- Best for Emergency Dental Carenot ranked
- Best Price Transparency#480.5/100
- Best English-speaking Clinics#281.3/100
- 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
Summary
Four-dentist practice three minutes from Tenjin subway station, in its fourth generation and dating its establishment to 1903. It concentrates on implantology, bone grafting and orthodontics, publishes an itemised self-pay price list, documents a wide-field KaVo cone-beam CT and a 3D facial scanner, and takes English-language bookings over WhatsApp.
Strengths
- Information Transparency: 20 of 20 points.
- Reputation & Reviews: 16 of 20 points.
- Medical Infrastructure: 12 of 15 points.
- AI & Search Visibility: 9 of 10 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
20 / 20
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 Four dentists named on the clinic's own staff page: Nobuyuki Yamamichi (romanisation published by the clinic), two further dentists with the same surname in kanji and a fourth dentist, plus a dental technician and a plastic surgeon. No romanisation is published for the other three, whose names appear in kanji only. [s2] | 3/3 |
| ✓ | Dentist specializations listed Nobuyuki Yamamichi: PhD in dentistry, instructor of the Kinmirai Osteo-Implant Society, ~40 years of implant practice. The second dentist listed, of the same surname: PhD in dentistry, Japanese Society of Periodontology specialist, certified dentist of the Japanese digital orthodontics society (Dejitaru Kyosei Gakkai). [s2] [s3] | 2/2 |
| ✓ | Real clinic photos Own photographs of the premises and equipment on the facilities page. [s4] | 2/2 |
| ✓ | Service list published [s1] | 3/3 |
| ✓ | Clear contact details Address, freephone booking line and station route on the clinic's own access page; the landline in the Kyushu Regional Bureau register entry is 092-741-1655. [s5] | 2/2 |
| ✓ | English website version [s6] | 2/2 |
| ✓ | Address and map published [s5] | 2/2 |
Price Transparency
11 / 15
Whether patients can estimate costs before visiting. Published price ranges count; exact prices are not required.
| ✓ | Prices or price ranges published Standing itemised price list across implants, orthodontics, ceramics and general treatment; not a time-limited offer. [s7] | 3/3 |
| ? | Cleaning price listed | 0/2 |
| ? | Filling price listed | 0/2 |
| ✓ | Crown price listed Ceramic restoration prices published in the 143,000-165,000 yen band, with smaller restorations at 49,500-71,500 yen. [s7] | 2/2 |
| ✓ | Implant price listed Implant items published from about 330,000 yen, with separate line items for the surgical and prosthetic stages. [s7] | 2/2 |
| ✓ | Consultation price listed Orthodontic precision diagnosis (CT, 3D facial scan, intraoral scan and cephalometric analysis) 38,500 yen. [s7] | 2/2 |
| ✓ | X-ray / imaging price listed Imaging is priced as part of the 38,500 yen orthodontic diagnostic package (CT plus cephalometric analysis); no separate single-film tariff is published. [s7] | 2/2 |
Reputation & Reviews
16 / 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) Star histogram read live on 2026-09-06 from the place page: 53 five-star, 2 four-star, 3 three-star, 1 two-star, 1 one-star. The buckets sum to 60, matching the 60 in the place-page header exactly, and the weighted mean 4.750 reproduces the published 4.8. [gmp1] | 5/6 |
| ◐ | Google review volume Read live on 2026-09-06 from the place-page header; the star histogram sums to the same figure. [gmp1] | 1.5/3 |
| ✓ | Review recency The newest review visible is 3 months old, which proves the within-3-months bucket and no better. Sample: the 3 reviews Google Maps renders on the place page in its own relevance order. A newest-first sort was not available; re-checking the Reviews tab returned the same three reviews, so no fresher slice is available. [gmp1] | 3/3 |
| ✓ | Clinic responds to reviews The owner replied to all three reviews Google renders. Sample: the 3 reviews Google Maps renders on the place page in its own relevance order. A newest-first sort was not available; re-checking the Reviews tab returned the same three reviews, so no fresher slice is available. [gmp1] | 2/2 |
| ✓ | No recurring complaints No review in the visible sample is critical; the histogram carries two ratings of two stars or below in 60 (3 per cent). Sample: the 3 reviews Google Maps renders on the place page in its own relevance order. A newest-first sort was not available; re-checking the Reviews tab returned the same three reviews, so no fresher slice is available. [gmp1] | 2/2 |
| ✓ | No suspicious review patterns Histogram shape, spread of wording and dates, and reviewer-account variety show no sign of manipulation. Sample: the 3 reviews Google Maps renders on the place page in its own relevance order. A newest-first sort was not available; re-checking the Reviews tab returned the same three reviews, so no fresher slice is available. [gmp1] | 2/2 |
| ✗ | Active Facebook presence The clinic's Facebook page has had no post since August 2024 and has no reviews; the clinic's website yamamichi.co.jp is its working channel. [yamamichi-dental-fukuoka-presence-2] | 0/1 |
| ✗ | TripAdvisor presence No TripAdvisor listing found via its search for "Yamamichi Dental Clinic Fukuoka" and "Yamamichi Dental"; the clinic's site does not link to TripAdvisor (checked 2026-10-05). [yamamichi-dental-fukuoka-tripadvisor] [yamamichi-dental-fukuoka-tripadvisor-2] | 0/0.5 |
| ✓ | Other review platforms Reviewed on Caloo (1 member review, 2016) and on EPARK Dental (1 patient review). [yamamichi-dental-fukuoka-presence] | 0.5/0.5 |
Medical Infrastructure
12 / 15
The range of publicly documented equipment and services. This measures documented availability, not clinical quality.
| ✓ | On-site X-ray [s4] | 2/2 |
| ✓ | CBCT (3D imaging) KaVo OP 3D Vision V17 cone-beam CT covering head to airway, plus a 3D facial scanner, documented on the facilities page. [s4] | 2/2 |
| ✓ | Implantology [s1] [s7] | 2/2 |
| ✓ | Orthodontics Adult, child, surgical, lingual, Gummetal and Invisalign treatment, each with published prices. [s1] [s7] | 2/2 |
| ✓ | Oral surgery Oral surgery and wisdom-tooth treatment; oral surgery (shika koku geka) is also a declared specialty in the register entry. [s1] [reg1] | 2/2 |
| ? | Pediatric dentistry | 0/1.5 |
| ? | Emergency care | 0/1.5 |
| ✓ | Works with international patients English-language section with treatment explanations in English and reservations by WhatsApp for first and returning visits. [s6] | 2/2 |
Communication & Service
7 / 10
How easy it is to contact the clinic, get answers, and book - especially for international patients.
| ✓ | WhatsApp / LINE available WhatsApp reservation link published on the clinic's English page. [s6] | 2/2 |
| ? | Response speed | 0/1.5 |
| ✓ | English spoken [s6] | 2.5/2.5 |
| ✓ | Pre-visit consultation possible The English page invites questions and bookings over WhatsApp before a first visit. [s6] | 1.5/1.5 |
| ✓ | Clear service explanations Each priced item carries an explanation of what the procedure is and why it is used. [s7] | 1/1 |
| ? | Convenient opening hours | 0/1.5 |
AI & Search Visibility
9 / 10
Whether the clinic is discoverable when patients search - including via AI assistants. Checked with fixed queries: "best dentist Japan", "English speaking dentist Japan", "dental implants Japan", "emergency dentist Japan", "Japan dental clinic for expats".
| ✓ | Mentioned for: best dentist Japan Web search 2026-09-06: named and described ("located in Tenjin, central area of Fukuoka, just 4 minutes from the subway exit...English-language consultations...reservations in English on WhatsApp") in the answer for "best dentist Fukuoka", citing its own site yamamichi.co.jp/English/. [q1] | 1/1 |
| ✓ | Mentioned for: English speaking dentist Japan [sq1] | 1/1 |
| ✓ | Mentioned for: dental implants Japan Web search 2026-09-06: named and described ("Dr. Nobuyuki Yamamichi has written books about bone regeneration surgery, sinus floor elevation and dental implants, and is a Diplomate of The International Congress of Oral Implantologists") in the answer for "dental implants Fukuoka", citing its own site yamamichi.co.jp/English/. [q2] | 1/1 |
| ✗ | Mentioned for: emergency dentist Japan Web search 2026-09-06: not among results for "emergency dentist Fukuoka" (named results were Hakata Chuo Dental Clinic, Yasumasu Dental Office, Tomo Dental Clinic, Yoshizuka Hamai Dental Clinic, and matsuura-endodontics-fukuoka's own page). [q3] | 0/1 |
| ✓ | Mentioned for: Japan dental clinic for expats Web search 2026-09-06: named first and described in detail (established 1903, Tenjin location, WhatsApp support) in the answer for "Fukuoka dental clinic for expats", citing its own site yamamichi.co.jp/English/. [q4] | 1/1 |
| ✓ | Structured data on website The home page serves two JSON-LD blocks: a BreadcrumbList/CollectionPage/WebSite @graph and a standalone schema.org Dentist node (also typed LocalBusiness) with the clinic name, PostalAddress, GeoCoordinates 33.592234 / 130.395337, telephone and opening hours. [s1] | 1.5/1.5 |
| ✓ | Google indexing quality yamamichi.co.jp holds 5 of 9 results (feature, perio, aesthetic, homepage, access) despite a health-ministry registry and Wikipedia entries ranking above (web search 2026-09-07) [giq1] | 2/2 |
| ✓ | Dedicated service pages Separate pages per treatment and per appliance type, each with its own FAQ and price page. [s1] | 1.5/1.5 |
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: Institution code 103,165,3 — designated health-insurance dental clinic, designated 1998-12-09. Operator and responsible dentist: Nobuyuki Yamamichi. Declared specialties: dentistry, oral and maxillofacial surgery, orthodontics. Per the Kyushu Regional Bureau of Health and Welfare institution list, snapshot of 2026-08-01. The clinic is separately recorded in the national medical-institution register, MHLW Healthcare Information Net, as Yamamichi Dental Clinic (its own English transliteration), in the open-data release of 2025-12-01. [reg1] [od1]
Dentists & MHLW register entry
| Dentist | Specialization | MHLW entry | Notes |
|---|---|---|---|
| 山道 信之 (Nobuyuki Yamamichi) [s2] [reg2] [reg1] | Director and chairman, and the clinic's responsible dentist; PhD in Dentistry; instructor of the Kinmirai Osteo-Implant Society; Kanagawa Dental University 1972; former visiting lecturer, Kanagawa Dental University, and clinical professor, Taipei Medical University | not published | Confirmed on the public register of 厚生労働省; registered since 1972, no licence number is published. |
| 山道 研介 [s2] [s3] [reg2] | Deputy director (the clinic's greeting page signs him as director); PhD in Dentistry; board-certified specialist, Japanese Society of Periodontology; certified specialist, digital-orthodontics society; Matsumoto Dental University 2012, Kyushu University graduate school 2017 | not published | Confirmed on the public register of 厚生労働省; registered since 2012, no licence number is published. |
| 山道 美季 [s2] [reg2] | Dentist | not published | Confirmed on the public register of 厚生労働省; registered since 2015, no licence number is published. |
| 浦田 亜希 [s2] [reg2] | Dentist | not published | Confirmed on the public register of 厚生労働省; registered since 2016, no licence number is published. |
Red Flags
No red flags identified in the public sources we reviewed.
Data We Could Not Verify
- Price Transparency: Cleaning price listed
- Price Transparency: Filling price listed
- Medical Infrastructure: Pediatric dentistry
- Medical Infrastructure: Emergency care
- Communication & Service: Response speed
- Communication & Service: Convenient opening hours
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://yamamichi.co.jp/ |
|---|---|
| Phone | +81 92-741-1655 |
| https://api.whatsapp.com/message/G4TFTCA4Y3Y4O1 | |
| Google Maps | Map listing |
| Address | 3-5-13 Tenjin, Chuo-ku, Fukuoka 810-0001, Japan (1F/2F) |
Contact details are provided for identification only and may change; verify with the clinic directly.
Sources
| ID | Source | What it supports | Accessed |
|---|---|---|---|
| s1 | https://yamamichi.co.jp/ | Clinic name, service list, site structure, structured-data check | 2026-09-04 |
| s2 | https://yamamichi.co.jp/staff/ | Named dentists, roles, qualifications and career histories | 2026-09-04 |
| s3 | https://yamamichi.co.jp/director/ | Director's greeting, qualifications and overseas training | 2026-09-04 |
| s4 | https://yamamichi.co.jp/equipment/ | KaVo OP 3D Vision V17 cone-beam CT, 3D facial scanner, surgical sterilisation regime, premises photographs | 2026-09-04 |
| s5 | https://yamamichi.co.jp/access/ | Address, booking line, station route and embedded Google Maps place reference | 2026-09-04 |
| s6 | https://yamamichi.co.jp/English/ | English-language section, establishment year 1903, English consultation and WhatsApp reservation | 2026-09-04 |
| s7 | https://yamamichi.co.jp/cost/ | Itemised self-pay price list for implants, orthodontics, ceramics and diagnostics | 2026-09-04 |
| reg1 | https://kouseikyoku.mhlw.go.jp/kyushu/gyomu/gyomu/hoken_kikan/index… | Kyushu Regional Bureau of Health and Welfare medical-institution code roster, Fukuoka Prefecture dental workbook (r8_08_shika_fukuoka_02.xlsx), snapshot 2026-08-01: entry 642, institution code 103,165,3, operator, responsible dentist, designation date and declared specialties | 2026-09-04 |
| reg2 | https://licenseif.mhlw.go.jp/search_isei/jsp/top.jsp | MHLW physician/dentist qualification confirmation search (national dentist register), full-name searches for the four named dentists; register data as of 2026-09-04 | 2026-09-04 |
| od1 | https://data.e-gov.go.jp/data/dataset/iryou_teikyouseido_mhlw | MHLW Healthcare Information Net open data, 03-1_dental_facility_info_20251201.csv, snapshot 2025-12-01, record 4030001031653: official name, address, English transliteration and coordinates 33.592207 / 130.395354 | 2026-09-04 |
| sq1 | search:English speaking dentist Fukuoka dental clinic | AI/search visibility scout 2026-09-04 — clinic named first in the answer and in the cited English-friendly dentist listings | 2026-09-04 |
| gmp1 | https://www.google.com/maps/place/Yamamichi+Dental+Clinic/@33.59222… | Live Google Maps place page read in a browser: rating, review count, star histogram, review dates, owner replies, listing website, phone, address and pin coordinates | 2026-09-06 |
| q1 | search:best dentist Fukuoka | AI/search visibility scout — canonical query | 2026-09-06 |
| q2 | search:dental implants Fukuoka | AI/search visibility scout — canonical query | 2026-09-06 |
| q3 | search:emergency dentist Fukuoka | AI/search visibility scout — canonical query | 2026-09-06 |
| q4 | search:Fukuoka dental clinic for expats | AI/search visibility scout — canonical query | 2026-09-06 |
| giq1 | search:山道歯科 福岡 Yamamichi Dental Fukuoka | yamamichi.co.jp holds 5 of 9 results (feature, perio, aesthetic, homepage, access) despite a health-ministry registry and Wikipedia entries ranking above | 2026-09-07 |
| yamamichi-dental-fukuoka-presence | https://caloo.jp/hospitals/detail/3400006230 | Caloo page for Yamamichi Dental Clinic, 3-5-13 Tenjin, Chuo-ku, Fukuoka, phone 092-741-1655 — the card's address and phone: 1 member review, score 3.44, posted November 2016 (read 2026-10-02); EPARK Dental also carries 1 patient review of it | 2026-10-02 |
| yamamichi-dental-fukuoka-presence-2 | https://www.facebook.com/profile.php?id=100063544810104 | Facebook page "Yamamichi Dental International Orthodontic and Implant Clinic" (27 followers), read 2026-10-02; newest post 2024-08-07; Not yet rated (0 reviews); address 3-5-13 Tenjin, Chuo-ku, Fukuoka (given in Japanese); phone +81 120-468-296; website yamamichi.co.jp, the clinic's own site | 2026-10-02 |
| yamamichi-dental-fukuoka-tripadvisor | https://www.tripadvisor.com/TypeAheadJson?action=API&details=true&q… | TripAdvisor's own search, read 2026-10-05: 12 suggestions for "Yamamichi Dental Clinic Fukuoka" (5 attractions, 7 hotels), none of them a dental practice in or near Fukuoka; 12 suggestions for "Yamamichi Dental" (5 attractions, 5 hotels, 2 restaurants), none of them a dental practice in or near Fukuoka; no listing for this clinic | 2026-10-05 |
| yamamichi-dental-fukuoka-tripadvisor-2 | https://yamamichi.co.jp/ | 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. |
| 2026-10-02 | Facebook presence re-checked on 2026-10-02: the clinic's Facebook page is inactive. |
| 2026-10-02 | Presence re-checked: presence on other review platforms — yes. |
| 2026-09-29 | Corrected 2026-09-29: active Facebook presence now unverified: no Facebook search is on record, so the absence of a page is not established. |
| 2026-09-06 | Checked by hand in a browser: the Google Maps place page was opened in a real browser and read for rating, review count, star histogram, review recency, owner replies, complaint and manipulation reading, listing website, phone, address and pin coordinates; the checks that needed a rendering browser were worked through on the clinic's own channels. |
| 2026-09-04 | Adversarial verification pass 2026-09-04: the Kyushu Regional Bureau workbook re-downloaded (the release dated as of Reiwa 8.8.1 = 2026-08-01 is still the newest) and re-read to the last of its 2,937 rows, entry 642 (institution code 103,165,3, designated Heisei 10.12.9 = 1998-12-09, operator and managing dentist Nobuyuki Yamamichi) reproduced exactly; all four dentist register entries reproduced live; the open-data coordinates corroborated to within about 3 m by the clinic's own schema.org GeoCoordinates; the structured-data reading corrected. |
| 2026-09-04 | Initial data collection for the Japan Dental Transparency & Trust Index: verified against the clinic's own site, the Kyushu Regional Bureau of Health and Welfare health-insurance institution list (snapshot 2026-08-01), the MHLW national dentist register and the MHLW medical-institution open data (snapshot 2025-12-01). |
A question or a correction?
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