Smile Signature Dental Clinic

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

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.