Instituto AreLuna
According to our open methodology, this clinic scored 46.9/100 for transparency, reputation, service accessibility, and digital visibility.
Overall rank: #1 of 15 ranked clinics · Last checked: 25 August 2026
Positions by Rating Profile
- Overall Transparency & Trust#146.9/100
- Best for Expats#244.3/100
- Best for Dental Implants#142.5/100
- Best for Emergency Dental Carenot ranked
- Best Price Transparency#231.9/100
- Best English-speaking Clinicsnot ranked
- Best for Families / Children#150.2/100
- 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 site (institutoareluna.pt)
Summary
Dental and aesthetic clinic in Porto with units on Rua de Júlio Dinis (Mota Galiza) and Rua de Faria Guimarães (Marquês). Offers implantology (All-on-4), orthodontics, oral surgery, pediatric and aesthetic dentistry plus facial harmonization. Runs a dental-tourism program for international patients with multilingual assistance and publishes WhatsApp contact. High directory rating (5.0). Website Portuguese only; prices not published.
Strengths
- Information Transparency: 18 of 20 points.
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 [s1] | 2/2 |
| ✓ | Service list published [s1] | 3/3 |
| ✓ | Clear contact details [s1] | 2/2 |
| ✗ | English website version [s1] | 0/2 |
| ✓ | Address and map published [s1] | 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 [s1] | 0/3 |
| ✗ | Cleaning price listed [s1] | 0/2 |
| ✗ | Filling price listed [s1] | 0/2 |
| ✗ | Crown price listed [s1] | 0/2 |
| ✗ | Implant price listed [s1] | 0/2 |
| ✗ | Consultation price listed [s1] | 0/2 |
| ✗ | X-ray / imaging price listed [s1] | 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) as of 2026-08-25 [instituto-areluna-refresh] | 6/6 |
| ✓ | Google review volume [instituto-areluna-refresh] | 3/3 |
| ? | Review recency | 0/3 |
| ? | Clinic responds to reviews | 0/2 |
| ? | No recurring complaints | 0/2 |
| ? | No suspicious review patterns | 0/2 |
| ✓ | Active Facebook presence [s1] | 1/1 |
| ? | TripAdvisor presence | 0/0.5 |
| ✓ | Other review platforms [s1] | 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 | 0/2 |
| ? | CBCT (3D imaging) | 0/2 |
| ✓ | Implantology [s1] | 2/2 |
| ✓ | Orthodontics [s1] | 2/2 |
| ✓ | Oral surgery [s1] | 2/2 |
| ✓ | Pediatric dentistry [s1] | 1.5/1.5 |
| ? | Emergency care | 0/1.5 |
| ✓ | Works with international patients [s1] | 2/2 |
Communication & Service
How easy it is to contact the clinic, get answers, and book - especially for international patients.
| ✓ | WhatsApp / LINE available [s1] | 2/2 |
| ? | Response speed | 0/1.5 |
| ? | English spoken | 0/2.5 |
| ? | Pre-visit consultation possible | 0/1.5 |
| ✓ | Clear service explanations [s1] | 1/1 |
| ✓ | Convenient opening hours [s1] | 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 Porto", "English speaking dentist Porto", "dental implants Porto", "emergency dentist Porto", "Porto dental clinic for expats".
| ? | Mentioned for: best dentist Porto | 0/1 |
| ? | Mentioned for: English speaking dentist Porto | 0/1 |
| ? | Mentioned for: dental implants Porto | 0/1 |
| ? | Mentioned for: emergency dentist Porto | 0/1 |
| ? | Mentioned for: Porto dental clinic for expats | 0/1 |
| ? | Structured data on website | 0/1.5 |
| ? | Google indexing quality | 0/2 |
| ✓ | Dedicated service pages [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: ERS Registo E161637 | Licenca 21593/2022 (Registry: ERS. Self-published on the clinic's own site (institutoareluna.pt footer): 'No Registo ERS: E161637' and 'No Licenca: 21593/2022'. Checked 2026-08-25.) [s1]
Dentists & professional licences
| Dentist | Specialization | Licence No. |
|---|---|---|
| Dr. Leonardo Saraiva [s1] | — | OMD 11846 |
| Dra. Carla Salvi [s1] | — | OMD 15214 |
| Dr. Marcos Kawasaki [s1] | — | OM 75498 |
| Dra. Arethuza Luna [s1] | — | OMD 11845 |
Red Flags
- low Opaque or bait pricing (-2 pts) — No prices or price ranges published (derived from data).
Red-flag penalty applied: -2 points (capped at -20).
Data We Could Not Verify
- Reputation & Reviews: Review recency
- Reputation & Reviews: Clinic responds to reviews
- Reputation & Reviews: No recurring complaints
- Reputation & Reviews: No suspicious review patterns
- Reputation & Reviews: TripAdvisor presence
- Medical Infrastructure: On-site X-ray
- Medical Infrastructure: CBCT (3D imaging)
- Medical Infrastructure: Emergency care
- Communication & Service: Response speed
- Communication & Service: English spoken
- Communication & Service: Pre-visit consultation possible
- AI & Search Visibility: Mentioned for: best dentist Porto
- AI & Search Visibility: Mentioned for: English speaking dentist Porto
- AI & Search Visibility: Mentioned for: dental implants Porto
- AI & Search Visibility: Mentioned for: emergency dentist Porto
- AI & Search Visibility: Mentioned for: Porto dental clinic for expats
- AI & Search Visibility: Structured data on website
- 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://www.institutoareluna.pt/ |
|---|---|
| Phone | +351 220 430 090 |
| +351 910 098 226 | |
| https://www.facebook.com/institutoareluna | |
| Google Maps | Map listing |
| Address | Rua de Júlio Dinis 190, 4050-027 Porto, Portugal |
Contact details are provided for identification only and may change; verify with the clinic directly.
Sources
| ID | Source | What it supports | Accessed |
|---|---|---|---|
| s1 | https://www.institutoareluna.pt/ | Clinical-staff section of the clinic's own site lists 'Dr. Marcos Kawasaki: OM 75498' (displayed as 'OM', not 'OMD', as shown on the site). | 2026-08-25 |
| s2 | https://docdental.pt/clinicas-dentais/porto/ | 5.0 rating from ~354 reviews | 2026-07-14 |
| instituto-areluna-refresh | https://www.google.com/maps/place/Instituto+Areluna/@41.1507244,-8.… | Google rating 4.9 (525 reviews) as of 2026-08-25 (rating was 5, reviews was 354) | 2026-08-25 |
Change History
| Date | Change |
|---|---|
| 2026-08-25 | License verification 2026-08-25: clinic license and all 4 named doctors' OMD registration numbers found self-published on the clinic's own site (institutoareluna.pt), which lists individual OMD numbers per clinician; not independently cross-checked against the OMD public registry due to time. |
| 2026-08-25 | Re-verification 2026-08-25: confirmed website, address and phone; Google rating updated to 4.9 (was 5) and review count increased to 525 (was 354); added geo coordinates. |
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.