Chairside whitening
A stronger gel applied in the clinic, with gums protected.
- Visible change in one visit
- Done under a dentist's care
- Good before an event
Gangnam Seoul · Professional whitening in English
Coffee, tea and time can dull your smile. Professional whitening lightens natural teeth safely under a dentist's care.
In short: professional teeth whitening uses a peroxide gel to lighten stains inside the enamel. You can whiten in the clinic (chairside) in one visit, or at home with custom trays over one to two weeks. It suits healthy natural teeth; crowns, veneers and fillings do not change colour.
English-speaking team · Saturday appointments · Cheongdam Station Exit 14
Understanding whitening
Whitening gels release oxygen that breaks down stain molecules in the enamel. Results vary: yellow-brown stains usually respond well, while grey stains respond more slowly.
A stronger gel applied in the clinic, with gums protected.
Custom trays and a milder gel worn at home.
Is it right for you?
Worth knowing
How it works
We check your teeth first so whitening is safe and even.

We record your shade and check for decay or sensitivity.
First visitTeeth are polished so the gel works evenly.
Same visitGel is applied in the clinic, or trays are made for home use.
Chairside or 1–2 weeksWe advise on sensitivity and stain-free habits.
After treatmentOptions at a glance
| Option | Best for |
|---|---|
| Chairside gel treatment | Quick in-clinic brightening |
| Chairside peroxide treatment | Stronger in-clinic whitening |
| Home gel kit | Gradual whitening or touch-ups |
| Home paste kit | Maintenance at home |
Costs depend on your diagnosis and the treatment you choose. After your examination we give you a written, itemised quote in English before any treatment begins.
For international patients
Chairside whitening fits easily into a visit. Our English coordinator books a time that suits you.
A typical visit plan
Message us on WhatsApp or email.
Shade check, cleaning and whitening.
Optional take-home kit for touch-ups.
If decay or gum problems are found, we treat or advise on these first.
After whitening
Teeth absorb stains more easily for a day or two after whitening:
Questions patients ask us
Cosmetic treatments
Come and say hello
Message us in English — we'll find a time that suits you and explain what to expect.
This page is for general information and does not replace an examination by a dentist. A Plus Dental Clinic · Gangnam, Seoul · Since 1996 · Last updated October 2026
Gangnam A Plus Before & After Photos
Trusted by Patients Worldwide
🦷 Book Your Smile Consultation Today
Let us help you achieve the smile you deserve. Quick. Easy. Confidential.

Monday~Friday:
9:30AM-6:00PM
Saturday:
9:00AM-1:00PM
Welcome to Gangnam A Plus Dental Clinic, your trusted destination for high-quality dental care in Seoul. Our English-speaking dentists include USA-trained professionals and Seoul National University graduates, delivering global-standard treatment in a foreigner-friendly environment. From routine check-ups to advanced cosmetic and specialized procedures, we provide complete dental care for international patients.
Tel: +82-10-9325-2875
Address: 3rd Fl. Samgang Bldg, 704 Yeongdong-daero, Gangnam-gu, Seoul
All Rights Reserved | A Plus Dental Clinic