Zoom Whitening
The Philips Zoom WhiteSpeed protocol — clinically the fastest path to a meaningfully brighter smile. Up to 8 shades whiter in one session.
The Thai word เลิศ (lert) means excellence — the finest of its kind, surpassing the ordinary. It is also the surname our founder carries: Dr. Wasit Lertwanich, DDS.
Two meanings, one standard — to do dental work the way it should be done, every time.







From subtle smile design to full-mouth restoration — every treatment is planned and performed by a dentist experienced in that area, using genuine materials sourced direct from the manufacturer.
The Philips Zoom WhiteSpeed protocol — clinically the fastest path to a meaningfully brighter smile. Up to 8 shades whiter in one session.
Hand-layered porcelain shells designed to harmonize with your face. Digital smile preview before any tooth is touched.
Genuine Swiss-engineered implants placed with 3D-CT guidance and surgical templates — full traceability, manufacturer warranty intact.
Authorized Invisalign provider. Treatment planned with 3D digital scanning and supervised by a certified specialist — the same Invisalign system used internationally.
The small things that add up to an English-speaking dental clinic in Chiang Mai that patients from 40+ countries return to.
The dentist who plans your case is the dentist who finishes it. Implants by an implant specialist, orthodontics by an orthodontist, veneers by a cosmetic dentist.
Genuine Straumann from Switzerland, Align Technology Invisalign, Philips Zoom — sourced direct from the manufacturer.
Cone-beam CT and intraoral scanning on every chair — implants placed with surgical guides, no putty impressions.
Preview your new smile on screen and refine it together — before a single tooth is touched.
Specialist dentists and front-desk staff fluent in English. Patients regularly join us from the US, UK, EU and Australia.
Written treatment plan with itemised costs — fixed before treatment begins. No upsell, no surprises.
A small dental office by design. Most days, you are the only patient in the room at the time of your visit.
1 Atsadathon Rd, just inside the moat — minutes from Wat Chedi Luang and the Sunday Walking Street.
Every instrument runs through ultrasonic cleaning, sealed pouches, and a Class B autoclave at 134°C — the same protocol used in surgical hospitals. Needles, suction tips and gloves are single-use; water lines disinfected daily.
Real people, real visits — captured in our Old City studio in Chiang Mai.















Every quote links to the review on Google. Shortened where marked with …, never reworded.
A selection of recent cases from our Chiang Mai studio — all photographed under the same studio lighting, all shared with patient permission.
A calm, light-filled clinic moments from Wat Chedi Luang and the Sunday Walking Street — Chiang Mai, Thailand.
Tell us what you'd like to change, and a specialist will reply personally — usually within a few hours.
Send us a few photos and tell us what you'd like to change. A specialist will reply personally — usually within a few hours. No charge, no obligation.