SmileJet
Confidential — for patient review

TDH Dental Clinic

ชั้น 5 โซนพลาซ่า ห้างไอคอนสยาม 299 Charoen Nakhon Rd, Bangkok, Thailand

Last audited May 2026 By SmileJet Audit Team How we audit →
AI Audit 6.5/10 4.9/5  · 135 reviews

SmileJet AI Audit Score for TDH Dental Clinic: 6.5/10 overall. Authenticity: 4/10 — 49 of 50 reviews are 5-star with 0 verified accounts and uniformly short generic praise; manipulation cap applied despite legitimate hospital infrastructure.. Treatment Quality: 5/10 — Cannot verify outcomes from review pool given manipulation pattern; ISO 9001 process certification supports baseline quality controls.. Cleanliness: 8/10 — ISO 9001:2015 certified, Guided Biofilm Therapy and Air-Flow systems, digital X-ray imaging across 10 branches.. Team: 7/10 — 20+ years operating, multiple specialist departments named (orthodontics, endo, perio, oral surgery), Dr Rueang-Yos Onsoad listed but individual credentials not detailed.. Price Value: 7/10 — Transparent pricing published: veneers 14000-18000 THB per tooth, whitening 10900-12900 THB, accessible to tourists.. Tourist Suitability: 8/10 — English, Chinese, Lao and Burmese language support, 10 branches including Iconsiam tourist hub, no formal JCI for international patients.. Summary: TDH Dental is a 20-year established Thai dental hospital chain with ISO 9001 certification and Invisalign Red Diamond status, holding genuine credentials. Its review pool however shows manipulation patterns making outcome quality hard to independently verify. Key strengths: ISO 9001:2015 certified with 10 branches; Invisalign Red Diamond Provider (highest in Thailand); Transparent pricing in Thai Baht for tourists; Multilingual support including English, Chinese, Lao. Points to note: 49 of 50 reviews 5-star with 0 verified accounts and generic praise - manipulation suspected; No JCI accreditation despite hospital branding; Individual specialist credentials not detailed on English website. Confidence: Low. Based on 50 reviews and 3 sources. Audited 03 May 2026.

SmileJet AI Audit

6.5 /10

Confidence

● Low

Audited 03 May 2026

Authenticity

4

Treatment Quality

5

Cleanliness

8

Team

7

Price Value

7

Tourist Suitability

8

"TDH Dental is a 20-year established Thai dental hospital chain with ISO 9001 certification and Invisalign Red Diamond status, holding genuine credentials. Its review pool however shows manipulation patterns making outcome quality hard to independently verify."

Highlights

  • ISO 9001:2015 certified with 10 branches
  • Invisalign Red Diamond Provider (highest in Thailand)
  • Transparent pricing in Thai Baht for tourists
  • Multilingual support including English, Chinese, Lao

Watch out for

  • 49 of 50 reviews 5-star with 0 verified accounts and generic praise - manipulation suspected
  • No JCI accreditation despite hospital branding
  • Individual specialist credentials not detailed on English website

Score Breakdown

Authenticity
4

49 of 50 reviews are 5-star with 0 verified accounts and uniformly short generic praise; manipulation cap applied despite legitimate hospital infrastructure.

Treatment Quality
5

Cannot verify outcomes from review pool given manipulation pattern; ISO 9001 process certification supports baseline quality controls.

Cleanliness
8

ISO 9001:2015 certified, Guided Biofilm Therapy and Air-Flow systems, digital X-ray imaging across 10 branches.

Team
7

20+ years operating, multiple specialist departments named (orthodontics, endo, perio, oral surgery), Dr Rueang-Yos Onsoad listed but individual credentials not detailed.

Price Value
7

Transparent pricing published: veneers 14000-18000 THB per tooth, whitening 10900-12900 THB, accessible to tourists.

Tourist Suitability
8

English, Chinese, Lao and Burmese language support, 10 branches including Iconsiam tourist hub, no formal JCI for international patients.

Important — about this score

Please read before drawing conclusions about this clinic.

This score is an automated, opinion-based assessment generated by SmileJet's proprietary AI algorithm from publicly available information — including aggregated third-party reviews, clinic-published materials, and other open-source signals. It is not a statement of verified fact, a professional medical opinion, or an endorsement, and individual experiences may differ.

How the algorithm penalises scores

Our methodology applies score reductions where signals are detected that, in the algorithm's assessment, may indicate: unverifiable or potentially overstated claims about clinical experience or credentials; review patterns the model flags as inconsistent with organic user behaviour; or limited independent corroboration of marketing statements.

These adjustments reflect algorithmic signal-weighting only and do not constitute an allegation of any specific wrongdoing by this clinic or its staff.

Clinics may request a review of their score at any time. Read full methodology →

Why Choose TDH Dental Clinic in Bangkok?

TDH Dental (Icon Siam) is a premium dental clinic on the 5th floor of IconSiam, Bangkok, Thailand, operated by Thonglor Dental Hospital, Thailand's leading dental group. ISO 9001:2015-certified, trusted by patients from 70+ countries, and home to Thailand's only Invisalign Red Diamond Provider team. Specializing in Invisalign, Brava, porcelain veneers, Zoom whitening, and dental implants.

TDH Dental (Icon Siam) is a full-service dental clinic located on the 5th floor of the Plaza Zone at IconSiam shopping centre, Charoen Nakhon Road, Bangkok, Thailand. Operated by Thonglor Dental Hospital Co., Ltd., one of Thailand's most recognized dental groups, this branch brings TDH's internationally trusted standard of care to one of Bangkok's most iconic riverside destinations. The clinic is ISO 9001:2015-certified and has served patients from more than 70 countries, making it a well-established choice for dental tourists, expatriates, and international visitors exploring Bangkok.

Why Choose TDH Dental at Icon Siam

TDH Dental carries a set of credentials that set it apart across Thailand's competitive dental market. The TDH orthodontist team holds Thailand's only Invisalign Red Diamond Provider status as of 2024, a designation awarded by Align Technology only to providers treating more than 1,000 Invisalign cases per year across moderate to highly complex presentations. This places TDH among a small number of practices globally recognized at that tier. Beyond orthodontics, TDH has built a reputation for cosmetic smile design backed by celebrity and influencer endorsements across Thailand, and for treating international patients who fly in specifically for veneer and implant work. The clinic uses an iTero Element intraoral scanner for digital treatment planning and operates under protocols certified to ISO 9001:2015 quality management standards.

Treatments and Specialties

TDH Icon Siam covers the full range of modern dental specialties under one roof:

  • Invisalign (including Invisalign First, Teen, and Palatal Expander) for clear aligner orthodontics across all age groups, delivered by Thailand's top-ranked Invisalign provider team.
  • Brava by Brius, an innovative behind-the-tooth aligner system that moves all teeth simultaneously for faster, discreet orthodontic results.
  • Metal braces (3M) and Damon braces for patients who prefer fixed orthodontic systems.
  • Porcelain veneers (E-Max) designed to each patient's facial profile, starting from 14,000 THB per tooth, with tiered options from Prime Dentist to Prestige Master level.
  • Zoom teeth whitening for in-chair professional bleaching in a single session.
  • Dental implants, including single-tooth, multiple-unit, and All-on-X full-arch restorations.
  • General dentistry: scaling and polishing, Guided Biofilm Therapy (GBT), fillings, root canal treatment, tooth extractions, and wisdom tooth removal.
  • Pediatric dentistry: sealants, fluoride, pediatric crowns, and space maintainers.

Team and Credentials

TDH Dental is staffed by a multi-specialty team of dentists and orthodontists, each assigned to their relevant field of expertise through a specialist referral model. The orthodontist team is internationally recognized for Invisalign excellence, having attended the Align Conference 2025 at the Bangkok Marriott Marquis Queen's Park and participated in the 2025 Asia Invisalign summit. TDH dentists treat patients across the full clinical spectrum, from routine general care through to complex full-mouth rehabilitation cases.

Facilities and Technology

The Icon Siam clinic is equipped with the iTero Element digital intraoral scanner for precise 3D smile simulation and treatment planning. The facility uses ISO-certified sterilization and infection control protocols throughout all treatment rooms. Patients undergoing Invisalign can preview their projected tooth movements before committing to treatment through Invisalign's ClinCheck software.

International Patient Services

TDH has structured its operations explicitly for international patients, with a multilingual team and treatment coordination available in English, Chinese, Lao, and Burmese in addition to Thai. The clinic's website and LINE channel support pre-arrival consultations and appointment bookings for overseas visitors. Fly-in patients from the UK, Australia, Laos, Myanmar, and across Asia have documented their TDH treatment experiences publicly. Nearby riverside hotels including the Millennium Hilton Riverside are within easy reach of the IconSiam branch via the BTS Gold Line and Chao Phraya ferry, making the clinic practical for short-stay dental visits.

Location and Access

TDH Dental (Icon Siam) is located at 5th Floor, Plaza Zone, IconSiam Shopping Mall, 299 Charoen Nakhon Road, Khlong Ton Sai, Khlong San, Bangkok 10600. The clinic is directly accessible via the BTS Gold Line (Charoen Nakhon station) and by Chao Phraya River ferry to the IconSiam pier. This Khlong San riverfront location makes the clinic one of the most easily reached dental destinations in Bangkok for visitors staying across the city.

Patient Reviews from Bangkok

4.9

★ 135 reviews

มาลี สิริลำเพ็ญ

May 2026 · ★ 5

It's a clean and modern clinic. The doctors and all the staff are lovely and take excellent care of their clients.

Clinic response ():

Response from the owner a year agoThank you, Ms. Malee Sirilampen, for trusting TDH to take care of you. 💙✨ … Translated by Google ・ See original (Thai)

P

pok nack

May 2026 · ★ 5

If you're looking for Invisalign treatment, this is the place to go! The doctor is excellent, explains things clearly, the place is clean and convenient, and they have special promotions for orthodontic treatment.

Clinic response ():

Response from the owner 2 years agoThank you, Pok Nack, for trusting TDH with your Invisalign treatment. 💙✨ … Translated by Google ・ See original (Thai)

M

MoNn Nichamon

May 2026 · ★ 5

Dr. Pam is very kind and gentle. The manager, Ms. Pu, also gave great advice.

Clinic response ():

Response from the owner 2 years agoThank you, MoNn Nichamon, for trusting TDH to take care of your dental health. We will use your feedback to further improve our services. 💙✨ … Translated by Google ・ See original (Thai)

S

surachai SV

May 2026 · ★ 5

Today was my first dental check-up with Dr. Pam. I also had my teeth cleaned (tartar removed) and had an X-ray to check for cavities between my teeth. I was very impressed with Dr. Pam's consultation. She's lovely and kind. Thank you! The registration staff were also very friendly.

Clinic response ():

Response from the owner 2 years agoThank you, Mr. Surachai SV, for trusting TDH to take care of you. We will use your feedback to further improve our services. 💙✨ … Translated by Google ・ See original (Thai)

G

golfont golfont

May 2026 · ★ 5

Excellent service! The doctor provided complete information, and the reception staff were very helpful.

Clinic response ():

Response from the owner 2 years agoThank you for your review and for trusting us to take care of you! 💙✨ … Translated by Google ・ See original (Thai)

W

Wimwipa T

May 2026 · ★ 5

This is my regular shop. They are attentive to customers and pay attention to detail.

Clinic response ():

Response from the owner 2 years agoThank you for always trusting us at TDH ICONSIAM branch to take care of your oral health. 💙 ✨ … Translated by Google ・ See original (Thai)

P

Praphawarin S.

May 2026 · ★ 5

The doctor is very kind and gentle. I came for treatment today and they even gave me a small gift! 😁 …

Clinic response ():

Response from the owner 2 years agoTDH would like to thank you, Praphawarin, for trusting us to take care of you. Our TDH dental team is happy to serve you and hopes to continue to take care of you, Praphawarin. 💙✨ … Translated by Google ・ See original (Thai)

N

Nattarika nana

May 2026 · ★ 5

The clinic is clean and modern. The staff are very attentive. I got my clear braces done with Dr. Poom. He was polite and gave very good advice. During the dental work, the doctor had a gentle touch and took good care of me.

Clinic response ():

Response from the owner Edited 2 years agoThank you for trusting us at TDH ICONSIAM branch to take care of your oral health. 💙🦷✨ … Translated by Google ・ See original (Thai)

S

Samita Kenlha

May 2026 · ★ 5

The doctor is very kind, all the staff are very helpful, and I always feel comfortable every time I use their services.

Clinic response ():

Response from the owner 2 years agoTDH would like to thank you for trusting us with your care. Our team of dentists and staff at TDH are delighted to have served you and hope to continue caring for you, Samita, for many years to come. 💙 ✨ … Translated by Google ・ See original (Thai)

S

suwanee dabcharoenchai

May 2026 · ★ 5

Clean and safe. The doctor and staff are very kind.

Clinic response ():

Response from the owner 2 years agoThank you for trusting us with your care. Our team of dentists and staff at TDH are happy to serve you. 💙✨ … Translated by Google ・ See original (Thai)

Loading more reviews...
All reviews loaded

Your Safety & Quality Guarantee

Every clinic on SmileJet is evaluated by our international medical advisory board and must meet strict quality, safety, and hygiene standards.

Similar Clinics in Bangkok

Nearby Clinics in Thailand

Book Free Consultation

Request Sent!

We'll get back to you within 24 hours with a personalised quote.

TDH Dental Clinic

Free & no obligation. We typically respond within 24 hours.

★ 4.9 (135 reviews)

Verify on AI

Ask AI assistants about this — powered by smilejet.app