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TeethWhiteningStain removalNon-invasive

Teeth Whitening effects, reviews, and prices

How long do teeth whitening results last?

Also known as · Teeth whitening, In-office whitening, Home whitening

Teeth whitening is a treatment that brightens the color of your teeth using a whitening agent.

Common concerns

Yellowing teethCoffee stainsTeeth look dark in photos
Based on clinic deals ₩54,000 ~ ₩330,000

BEFORE & AFTER

Teeth Whitening Before & After

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Cases with verified shooting conditions and procedure details are shown first.

  • Before treatment — 30-Minute Complete Teeth Whitening ProgramBefore
    After treatment — 30-Minute Complete Teeth Whitening ProgramAfter
    Rating 5.0 out of 5
    2023.05.14

    Myeongdong Dental Clinic30-Minute Complete Teeth Whitening Program

    Because I had orthodontic treatment and drank a lot of coffee, my teeth had become yellow, so I wanted to get teeth whitening. While looking into where to have it done, I found it through Eodiseo, and the reviews were good, so I requested a consultation, made an appointment, and visited. I had three treatments and am very satisfied. I had the first and second sessions done at once on the first day, and the third session a week later. I’m also glad that I didn’t experience any sensitivity.

  • Before treatment — 30-Minute Complete Teeth Whitening ProgramBefore
    After treatment — 30-Minute Complete Teeth Whitening ProgramAfter
    Rating 5.0 out of 5
    2023.02.26

    Myeongdong Dental Clinic30-Minute Complete Teeth Whitening Program

    They were very kind. Before getting the treatment, I wasn’t sure if it would really work, but I had three sessions in total. I had the second session about two and a half weeks after the first, and it really was effective. The sensitivity may vary from person to person, but mine only lasted for a short while. I’m satisfied!! The photos were taken before the second session and after the third session.

  • Before treatment — Teeth Whitening in 30 MinutesBefore
    After treatment — Teeth Whitening in 30 MinutesAfter
    Rating 5.0 out of 5
    2023.12.3018

    Orun Dental ClinicTeeth Whitening in 30 Minutes

    I had one session, and it has brightened a bit. I've been busy with work and couldn't have the second treatment, but I'm planning to schedule it again in the new year ^^

Photos may look different depending on shooting conditions, and results vary from person to person even with the same procedure. The text shown with a photo is an excerpt from that review; the full text is in the review section.

476 verified reviews

  • Rating 5.0 out of 5
    UnverifiedKim Hoon Jae Dental Clinic

    I visited because I had tooth discoloration. The doctor examined me thoroughly and explained the methods of teeth cleaning and whitening clearly. The staff were also friendly, and the facility was modern and clean.

    2024.04.21
  • Rating 5.0 out of 5
    UnverifiedOnyu Dental Clinic

    I visited because I had tooth discoloration. The doctor was very thorough in the examination and explained the methods for cleaning and whitening my teeth very well. The staff were friendly, and the facilities were modern and clean.

    2024.04.07
  • Rating 5.0 out of 5
    UnverifiedSeongsin Dental Clinic

    I visited because I had tooth discoloration. The doctor examined me thoroughly and explained the different options for teeth cleaning and whitening. The staff were also very pleasant, and the facility was modern and clean.

    2024.03.16
  • Rating 5.0 out of 5
    UnverifiedKim Hyun Dental Clinic

    I came in because I had discoloration on my teeth. The doctor examined me very carefully and explained the teeth cleaning and whitening options well. The staff were also friendly, and the facility was modern and clean.

    2024.03.12
  • Rating 5.0 out of 5
    UnverifiedSeoul Ivy Dental Clinic

    I visited because I had tooth discoloration. The doctor was very thorough in the examination and explained the methods for cleaning and whitening my teeth very well. The staff were friendly, and the facilities were modern and clean.

    2024.03.08
  • Rating 5.0 out of 5
    UnverifiedDental Clinic

    I visited because I had tooth discoloration. The doctor examined me thoroughly and explained the different ways to clean and whiten my teeth. The staff were also friendly, and the facility was modern and clean.

    2024.03.05
  • Rating 5.0 out of 5
    UnverifiedYonsei Severance Dental Clinic

    I visited because I had tooth staining. The doctor examined me thoroughly and explained the different options for teeth cleaning and whitening very well. The staff were friendly, and the facilities were modern and clean.

    2024.03.09
  • Rating 5.0 out of 5
    UnverifiedModern Dental Clinic

    I visited because I had tooth discoloration. The doctor was very thorough and also explained the methods for teeth cleaning and whitening in detail. The staff were friendly, and the facility was modern and clean.

    2024.03.28
  • Rating 5.0 out of 5
    UnverifiedSusaek Dental Clinic

    I visited because I had some tooth discoloration. The doctor examined me thoroughly and explained the teeth cleaning and whitening options clearly. The staff were also very pleasant, and the facilities were modern and clean.

    2024.04.06
  • Rating 5.0 out of 5
    UnverifiedSamsung Top Dental Clinic

    I visited because I had tooth discoloration. The doctor examined me thoroughly and explained the options for teeth cleaning and whitening very well. The staff were also friendly, and the facility was modern and clean.

    2024.04.01
  • Rating 5.0 out of 5
    UnverifiedNuga Dental Clinic

    I had orthodontic treatment before, but after my braces were removed, my teeth became yellow, possibly because I drank coffee so often. I felt self-conscious when I smiled and was stressed about it, so I decided to get my teeth whitened. After looking into it online, I found out that one-day teeth whitening could brighten my teeth in just one day, so I went to Nuga Dental Clinic, which is close to my home. Before the treatment, I had a consultation with the dentist, who carefully checked the shade and condition of my teeth and explained how much brighter they could become. They applied gum protectant carefully, and then the treatment began. I had three 15-minute sessions, and I was happy that there was almost no pain. I'm satisfied because my teeth are much brighter now.

    2026.08.12
  • Rating 5.0 out of 5
    UnverifiedOrun Dental Clinic

    I liked that the wait wasn’t long, and the clinic is clean and hygienic. Even while I was getting teeth whitening, all the nurses were kind, attentive, and took great care of me.

    2024.04.08
  • Rating 5.0 out of 5
    UnverifiedDental Signal Dental Clinic

    I received a gel for teeth whitening at the dentist, and they carefully explained how to use the gel and kindly informed me about its effects. The dental office is great.

    2024.02.04
  • Rating 5.0 out of 5
    UnverifiedLien Dental Clinic

    As I get older, my teeth seem to be getting yellow, which really upsets me. I thought if I got whitening, I could smile brightly too, so I went through the procedure and I'm satisfied with the results.

    2024.12.22
  • Rating 5.0 out of 5
    UnverifiedRev Dental Clinic

    I visited to receive scaling and a one-day teeth whitening treatment. Since it was a weekday, I walked in without an appointment and was able to have a consultation and proceed with the whitening after about a 10-minute wait. Dr. Baek Won-sun personally conducted the consultation, which made me feel confident.

    2026.02.10
  • Rating 5.0 out of 5
    UnverifiedThe White Dental Clinic

    The dental clinic held a festival for teeth whitening, and they thoroughly explained the details of the festival and kindly guided me on how to participate. I like the dental clinic.

    2024.02.04
  • Rating 5.0 out of 5
    UnverifiedSeodaegu Today Dental Clinic

    I've been thinking about getting teeth whitening for a while now and finally had a consultation, but the cost isn't as daunting as I expected.. I've heard that the whitening results are good, so I have to consider it.

    2025.12.17
  • Rating 5.0 out of 5
    UnverifiedKim Tae-young Dental Clinic

    I've always been someone who likes coffee, so my teeth weren't looking great. With my wedding coming up, I started to worry about the color of my teeth for the photos, and since there will be many photo opportunities in the future, I decided to go for teeth whitening. I searched for local dental clinics and found one that was conveniently located, Kim Tae-young Dental Clinic, and decided to go there for treatment. I had a consultation with the doctor, who explained the treatment process to me. First, I brushed my teeth, and then I was guided to the treatment area. Fortunately, there were no cavities, and the teeth whitening treatment didn't take as long as I expected, which was great, and my teeth definitely became whiter.

    2026.07.151
  • Rating 5.0 out of 5
    UnverifiedYonsei Dagam Dental Clinic

    I tried using whitening toothpaste, but it didn't have much effect. My teeth were severely discolored, and I couldn't smile widely, losing my confidence. However, after professional whitening, the yellow discoloration and black stains improved significantly. My teeth felt a bit sensitive, but it got better in just a few days.

    2025.11.27
  • Rating 5.0 out of 5
    UnverifiedLien Dental Clinic

    The facility is quite fresh and sophisticated, and although I was initially very nervous, the people there were really kind and gentle, which made me feel at ease.

    2025.08.257

Ongoing Procedures

5 frequently asked questions

  • Is it sufficient to receive teeth whitening just once? Typically, if I avoid alcohol, cigarettes, and coffee, how many sessions would I need?

    Hello, this is Rien Dental Clinic, accompanying your bright smile at every moment. ^^ The number of treatments may vary depending on the tooth color. Typically, one to three sessions are conducted in a day, and it is recommended to start treatment after a more accurate diagnosis. If you apply for a consultation via CashDoc, we will assist you with a prompt consultation at the hospital. Please apply at the bottom of the hospital event detail page! Thank you. ^^

  • I need orthodontic treatment.

    Hello. ^^ This is New En Dental Clinic. ^^ New En Dental Clinic, renowned for teeth whitening, also offers orthodontic treatments. ^^ Please leave your name and contact information, and we will assist you promptly. If you request a consultation through CashDoc, our hospital will provide you with quick assistance. Please apply at the bottom of the hospital event detail page! Thank you. ^^

  • How long does the light treatment during whitening therapy last?

    Hello :) The light treatment is conducted in three sessions, each lasting 15 minutes. The One-Day Teeth Whitening requires a minimum of 1 to 1.5 hours from preparation to completion. If you apply for a consultation through CashDoc, our hospital will assist you promptly. Please apply at the bottom of the hospital event detail page! Wishing you a great day today!