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Smile Signature Dental Clinic

Bangkok, Thailand

4.8 out of 5, from 196 aggregated reviews

Pioneer Bangkok dental tourism group established in 2005 as Bangkok Dental Home, now publicly listed on the MAI stock exchange. Siam Square branch at Siamscape Level 2, steps from...

  • 196 Patient reviews aggregated
  • 22 Photographs of the practice

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The practice

Photographs of the clinic.

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Patients

What patients wrote about this clinic.

196 aggregated from Google. Screened for duplication and printed as written. They are not visit-verified.

4.8

out of 5, from 196 reviews

5 178
4 7
3 2
2 2
1 7
Jon Taylor via Google 5.0 out of 5
After frustration with dental services in the US and Australia I decided to go to Bangkok for extensive dental treatments. I selected the practice Smile Signature, the largest dental group in Thailand. I visited the office at Siam Square …
Audrey T via Google 5.0 out of 5
I couldn't be happier with the experience with Dr. Rujirada at Smile Signature clinic. I felt genuinely cared for, making my visit comfortable and stress-free. I highly recommend Dr. Rujirada and this clinic for their top-notch dental care!
Chonnipa Mathong via Google 5.0 out of 5
The most satisfied dental clinic which I have been. Dentist is so professional ,good worked and all staffs were so friendly and great serviced 🥰 …
Nasit Last01 via Google 5.0 out of 5
Had a teeth cleaning today. The service is very fantastic. My dentist and her assistant are very gental and softed hands. I feel very comfortable when I'm on the dental chair. Painless service !!!! Do recommend !!! ❤❤
Ryan G via Google 1.0 out of 5
Messed up on a simple cleaning and filling... tooth ended up cracking due to decay …
Reply from the clinic

Dear Ryan G, Thanks for sharing your feedback. We’re sorry your experience didn’t match your … More

ชนกพร จียาศักดิ์ via Google 5.0 out of 5
Very Professional especially with Dr. Nutchanun Wiwatsombat and her DA today P’Eeed - gentle process, very organized, clear explanation and complete with the best results, definitely will be back again next time. Very recommended dental clinic ⭐️⭐️⭐️⭐️⭐️

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At a glance

Smile Signature Dental Clinic in brief.

Clinic
Smile Signature Dental Clinic
Location
อาคารสยามสเคป ชั้น 2 (ห้อง SS209, 215 Phaya Thai Rd, Bangkok, Thailand
Patient rating
4.8 out of 5, from 196 aggregated reviews
Listed as
A featured partner, meaning it passed the checks published in our methodology. How we check.
Listing checked
1 May 2026

About

What this clinic actually does.

Smile Signature Dental Clinic at Siam Square is located on Level 2 of the Siamscape Building, 215 Phya Thai Road, Pathum Wan, Bangkok 10330, Thailand, approximately 120 meters from the Rama I and Phayathai Road intersection. BTS Siam and BTS National Stadium are both within short walking distance, and the clinic is directly accessible from Bangkok's central shopping corridor opposite MBK. The Siam Square branch is part of a network of more than 10 Smile Signature locations across Bangkok, Phuket, Pathum Thani, and Nonthaburi.

Twenty Years of Dental Tourism Leadership

Read the rest of the description

The practice was founded in 2005 under the name Bangkok Dental Home, making it one of Thailand's first dental clinics to explicitly position itself around international patient service. Over two decades the group grew into one of Bangkok's best-known dental brands, with a patient base spanning dozens of countries and a reputation built on English-language communication, transparent pricing, and specialist-led case management. In 2017 the group listed on Thailand's Market for Alternative Investment (MAI), a publicly traded exchange, providing an unusual level of corporate governance transparency for a private dental operator. The stock exchange listing means audited financial reporting, board oversight, and institutional accountability that are not present at the vast majority of dental clinics.

Clinical Team

Smile Signature employs more than 100 dentists network-wide, including American board-certified specialists in orthodontics and prosthodontics. The group's founding dentists were educated in the United Kingdom, and the team now spans Thai dental school graduates with additional postgraduate training from universities in the United States, UK, and Australia. The clinic's stated policy is that complex procedures are assigned to trained specialists rather than general practitioners, meaning orthodontic cases are treated by orthodontists, implant surgery by implantologists, and root canal treatment by endodontists. At the Siam Square location the team includes Dr. Boworn Klongnoi heading adult dentistry and implantology, alongside Dr. Tatchaya Taenguthai, Dr. Ketkarn Sakultap, and Dr. Isaya Kungvarnchaikul.

Technology and Laboratory

The clinic uses CBCT (cone-beam computed tomography) for three-dimensional implant planning, 3D intraoral scanning for digital impressions, computer-guided implant placement with surgical guides, and microscope-assisted endodontic treatment. An on-site dental laboratory reduces fabrication turnaround for crowns, veneers, and bridges compared to external lab arrangements, and uses globally recognized implant brands including Straumann and Nobel Biocare. ISO 9001:2015 quality management certification covers the clinic's operational processes from intake through treatment delivery.

Services and Pricing

Initial consultations are offered free of charge, with written treatment plans provided within three working days for patients who submit dental records remotely before traveling. Published pricing covers the full treatment menu: teeth cleaning from 1,200 baht, Zoom whitening from 8,900 baht, porcelain veneers from 12,000 baht per tooth, all-ceramic crowns from 15,900 baht, dental implant packages (post, abutment, and crown) from 32,000 baht, metal braces from 40,000 baht, and comprehensive Invisalign from 160,000 baht. All major restorative work carries a one-year warranty. The pricing is standardized and non-negotiable, which removes the uncertainty of haggling that patients sometimes encounter at smaller clinics.

International Patient Services

The group has established hotel partnerships with Hyatt Regency, Sofitel, The Westin Sukhumvit, Pathumwan Princess, and Novotel Siam for patients requiring accommodation near the Siam Square branch. Multi-trip implant cases, where the surgical and restoration phases are separated by a healing interval of two to six months, can be coordinated with remote follow-up between visits. The clinic operates Monday to Saturday from 10:00 to 20:00 and Sundays from 10:00 to 18:00, and accepts inquiries and appointments by phone, WhatsApp at +66 83 095 0219, or LINE at @vub7523d.

Questions

What people ask this clinic.

How easy is it to reach Smile Signature Dental Clinic from central Bangkok?

Smile Signature Dental Clinic at Siam Square boasts excellent accessibility, nestled on Level 2 of the Siamscape Building. It's just a short walk from both BTS Siam and BTS National Stadium, making it incredibly convenient for patients using public transport. Positioned directly opposite the iconic MBK Center and within Bangkok's vibrant central shopping corridor, your visit can seamlessly integrate with exploring the city's highlights. Its prime location near the Rama I and Phayathai Road intersection ensures a hassle-free journey.

What expertise can I expect for complex dental treatments at Smile Signature?

Patients at Smile Signature Dental Clinic benefit from a specialist-led approach to complex procedures. Unlike many clinics, orthodontic cases are exclusively handled by orthodontists, implant surgeries by implantologists, and root canal treatments by endodontists. This ensures you receive care from highly trained experts. The clinic proudly features a team including Dr. Boworn Klongnoi, specializing in adult dentistry and implantology, alongside other dedicated professionals. Many dentists have postgraduate training from top universities in the US, UK, and Australia.

What advanced technology does Smile Signature use for dental implants?

Smile Signature Dental Clinic utilizes cutting-edge technology for precise and safe implant procedures. They employ CBCT (cone-beam computed tomography) for detailed three-dimensional planning, ensuring optimal placement. Additionally, computer-guided implant placement with surgical guides enhances accuracy, minimizing invasiveness. Patients can also expect treatment with globally recognized implant brands such as Straumann and Nobel Biocare, known for their quality and durability, maximizing the success and longevity of your dental implants.

Can you tell me about the pricing structure for cosmetic work, like veneers?

Smile Signature Dental Clinic maintains a transparent, standardized pricing policy, eliminating any need for negotiation. For cosmetic work such as porcelain veneers, prices start from 12,000 baht per tooth. All-ceramic crowns are available from 15,900 baht. They also offer Zoom whitening from 8,900 baht to brighten your smile. This clarity ensures you understand the costs upfront, allowing you to plan your dental journey with confidence and no hidden surprises. All major restorative work also comes with a one-year warranty.

How does the on-site lab at Smile Signature benefit me for crowns or veneers?

The on-site dental laboratory at Smile Signature Dental Clinic significantly enhances your treatment experience, especially for restorations like crowns, veneers, and bridges. This in-house facility dramatically reduces the fabrication turnaround time compared to clinics relying on external labs. It allows for quicker adjustments and ensures a precise fit, often meaning fewer appointments and a more efficient completion of your treatment. This integrated approach prioritizes convenience and quality, getting you back to smiling sooner.

What makes Smile Signature a trustworthy choice for international patients?

For over two decades, Smile Signature has built a reputation for trust, particularly with international patients. A unique aspect is its listing on Thailand's Market for Alternative Investment (MAI), a publicly traded exchange. This provides an extraordinary level of corporate governance transparency, including audited financial reporting and board oversight. Such institutional accountability is rare among private dental operators, assuring patients of the clinic's robust ethical practices and commitment to quality service.

Does Smile Signature assist with accommodation for patients traveling from abroad?

Smile Signature understands the needs of international patients and has established valuable hotel partnerships to assist with accommodation. They collaborate with prestigious hotels such as Hyatt Regency, Sofitel, The Westin Sukhumvit, Pathumwan Princess, and Novotel Siam, all conveniently located near the Siam Square branch. This network simplifies finding comfortable lodging, ensuring a stress-free stay while you undergo your dental treatments in Bangkok. They aim to make your dental tourism experience as seamless as possible.

How can I get a treatment plan before I travel to Bangkok?

Smile Signature offers a convenient process for prospective international patients to receive a treatment plan remotely. If you submit your existing dental records before traveling, the clinic will provide a comprehensive, written treatment plan within three working days. Initial consultations are always free of charge. This service allows you to understand the proposed procedures, timelines, and costs well in advance, enabling you to plan your trip to Bangkok with confidence and clarity.

What orthodontic treatment options are available, and what brands do you use?

Smile Signature provides a range of orthodontic solutions, all expertly managed by dedicated orthodontists. For traditional options, metal braces are available from 40,000 baht. For those preferring a more discreet approach, comprehensive Invisalign treatments start from 160,000 baht. This popular clear aligner system offers flexibility and aesthetic appeal. The clinic ensures that all orthodontic cases are handled by trained specialists, guaranteeing personalized and effective treatment for achieving your desired smile correction.

How does Smile Signature ensure high standards in its operational processes?

Smile Signature Dental Clinic prioritizes operational excellence and patient safety. The clinic's entire operational process, from initial intake to treatment delivery, is covered by ISO 9001:2015 quality management certification. This internationally recognized standard demonstrates a commitment to consistent quality, efficiency, and continuous improvement in all services. This rigorous oversight provides an additional layer of assurance for patients, knowing that their care adheres to stringent international benchmarks.

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