TDH Thonglor Dental Hospital is headquartered at 61/6 Soi Thonglor, Sukhumvit 55, Khlong Tan Nua, Wattana, Bangkok 10110, in Bangkok's premium Thong Lo district. The clinic holds Invisalign Red Diamond Provider status, the highest tier awarded by Align Technology, and has completed more than 6,700 Invisalign cases, placing it among the most experienced Invisalign practices in Southeast Asia. The group operates eight branches across Bangkok and beyond, including locations at Icon Siam, Canvas Ploenchit, APEX Ploenchit, Ratchapruek, Rama Intra, Central Rama 2, APEX Phuket, and a regional branch in Vientiane, Laos.
International Reach and Accreditation
TDH reports treating patients from more than 70 countries, a reach that reflects both the quality of its clinical outcomes and the international character of the Thong Lo neighborhood in which it is based. The hospital holds ISO 9001:2015 certification, a quality management standard that covers processes from patient intake through treatment delivery, providing an independently audited assurance of consistency and process discipline. The clinic also holds Invisalign Blue Diamond Provider status alongside the Red Diamond designation, reflecting ongoing case volume and continuing education investment from the orthodontic team.
Orthodontics: Invisalign and Brava
Invisalign is the treatment TDH is most widely recognized for among international patients. The Red Diamond tier requires not only a high annual case count but sustained clinical excellence over multiple years, and the 6,700-plus completed cases represent one of the deepest Invisalign portfolios in Thailand. For patients who prefer an alternative clear aligner system, TDH also offers Brava, a newer aligner platform. Conventional orthodontic options include Damon self-ligating braces and standard metal braces. The lead orthodontic specialist Dr. Reuangyos Onsoad holds both Invisalign Master and Brava Master certifications.
Cosmetic Dentistry
The clinic's cosmetic work centers on E-max ceramic veneers, fabricated from lithium disilicate ceramic blocks that offer high translucency and excellent durability. Veneer pricing ranges from 14,000 to 18,000 Thai baht per tooth depending on the treating dentist's level. Zoom WhiteSpeed professional teeth whitening is offered both as a standalone procedure and as part of broader smile design packages, with promotional pricing between 10,900 and 12,900 baht. Guided Biofilm Therapy (GBT) cleaning with Airflow technology provides pre-whitening and maintenance cleaning that exceeds conventional scaling in plaque removal thoroughness.
Dental Implants
Implant treatment at TDH begins at approximately 1,699 US dollars per implant, a fee that places this premium Thong Lo clinic competitively within the Bangkok implant market while representing significant savings compared to European or Australian pricing. The hospital's implant workflow incorporates digital planning tools and on-site imaging to optimize placement accuracy and minimize recovery time.
Full Clinical Range
Beyond orthodontics and cosmetics, the hospital covers restorative dentistry (crowns, bridges, full and partial dentures), endodontics (root canal treatment), periodontal care (scaling, gum treatment), oral surgery (wisdom tooth extraction, orthognathic jaw surgery), and paediatric dentistry. The breadth of the specialist team, described as dental professors covering all specialties, means that patients with complex multi-discipline treatment needs can be managed within a single facility without referral.
Thong Lo Location and Practical Details
The Thong Lo address is one of Bangkok's most internationalized residential and dining precincts, popular with Japanese expatriates, Western professionals, and upscale tourists. The clinic is accessible from BTS Thong Lo station and is surrounded by hotels, serviced apartments, and restaurants that make multi-appointment treatment visits comfortable to manage. Opening hours are daily from 10:00 to 20:00. Appointments can be booked via LINE at @TDHDENTAL. The network's multiple Bangkok branches, including the Icon Siam and both Ploenchit locations, means patients can often find a convenient follow-up location if their stay covers different parts of the city.
