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. ^^

Yes, during teeth whitening, how long is the light applied?

Hello~ ^^ Dear Customer, the tooth whitening light treatment lasts for 15 minutes per session.

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!

Hello, is the cost for one session of teeth whitening?

Hello~ ^^ Dear Customer, this is the cost for three sessions of tooth whitening.

Teeth Whitening effects, reviews, and prices (2026)

BEFORE & AFTER

Teeth Whitening Before & After

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

Before
After
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
After
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
After
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
UnverifiedCeramic Dental Clinic
I was worried because my teeth were yellow, but I received good advice on whitening and did it! I'm much brighter and feeling good!
2025.01.02
Rating 5.0 out of 5
Unverified365 Seoul Chaeum Dental Clinic, Bupyeong
My teeth were yellow and I was concerned even when I smiled. With professional teeth whitening, my teeth have become white. The results are great.
2025.09.03
Rating 5.0 out of 5
UnverifiedSuwon Go Eun Dental Clinic
I got teeth whitening done because I wanted white teeth. It turned out really well, and I am very satisfied. I highly recommend it.
2024.06.141
Rating 5.0 out of 5
UnverifiedMi Plan Dental Clinic
I'm looking to get teeth whitening, and I hope the nurses will kindly provide guidance.
2024.01.041
Rating 5.0 out of 5
UnverifiedePrant Dental Clinic
I came in for teeth whitening, and the doctor was very kind and explained everything in detail before the procedure.
2024.02.162
Rating 5.0 out of 5
UnverifiedRev Dental Clinic
By managing teeth with dental whitening, they can be kept whiter. It is said that they can be stained by coffee and other substances, so careful maintenance is necessary.
2025.11.293
Rating 5.0 out of 5
UnverifiedDaesin Smile Dental Clinic
They did a great job with my teeth whitening, I'll come again next time.
2024.01.02
Rating 5.0 out of 5
UnverifiedSmile Zone Dental Clinic
I got my teeth whitened. I should’ve done it sooner—I spent all that time just thinking about it haha.
2024.02.14
Rating 5.0 out of 5
UnverifiedMoon Dental Clinic
My husband's teeth became yellow, so we came for whitening treatment.
2025.10.08
Rating 5.0 out of 5
UnverifiedSeoul Hi-An Dental Clinic
I'm considering teeth whitening, please consult me kindly and in detail.
2024.01.17
Rating 5.0 out of 5
UnverifiedOrun Dental Clinic
I got my teeth whitened, and now I feel confident when I smile. Thank you.
2024.01.22
Rating 5.0 out of 5
UnverifiedHappy Dream Dental Clinic
I can't believe teeth whitening for discolored teeth is under 100,000 won! That's amazing!
2024.04.14
Rating 5.0 out of 5
UnverifiedThe White Dental Clinic
I went for a teeth whitening consultation and they were really friendly.
2024.01.22
Rating 5.0 out of 5
UnverifiedPark Ho-young Dental Clinic
I went in for a teeth-whitening consultation and ended up getting a dental scaling.
2024.05.02
Rating 5.0 out of 5
UnverifiedSmart Implant Dental Clinic
I feel like my overall impression looks so much better after getting my teeth whitened.
2025.01.23
Rating 5.0 out of 5
UnverifiedYonsei Smile Dream Dental Clinic
I went for a teeth whitening consultation, and they gave me a really good consultation.
2024.04.09
Rating 5.0 out of 5
UnverifiedTransparent Plus Dental Clinic
I had some yellow areas on my teeth, but the whitening treatment improved them.
2025.09.13
Rating 5.0 out of 5
UnverifiedRev Dental Clinic
I came in for a touch-up after teeth whitening. I liked that it was done quickly without any waiting.
2026.08.27
Rating 5.0 out of 5
UnverifiedHanmi Dental Clinic
I wanted to get teeth whitening, so I went for a consultation. They did a great job.
2024.03.12
Rating 5.0 out of 5
UnverifiedKim Myung Jin Dental Clinic
I got teeth whitening and it worked! Thank you for doing such a good job.
2026.01.02

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Ongoing Procedures

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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. ^^
Transform Yellow Teeth into Shining White Teeth · Lien Dental Clinic · 2025-02-27
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. ^^
Bright White Smile, Whitening Specialist New En Dental! · Newen Dental Clinic · 2025-02-03
Yes, during teeth whitening, how long is the light applied?
Hello~ ^^ Dear Customer, the tooth whitening light treatment lasts for 15 minutes per session.
Transform Yellow Teeth into Shining White Teeth · Lien Dental Clinic · 2024-10-21
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!
Confidently Smile One-Day Teeth Whitening - 3 Sessions · Good Sense Dental Clinic · 2024-10-17
Hello, is the cost for one session of teeth whitening?
Hello~ ^^ Dear Customer, this is the cost for three sessions of tooth whitening.
Transform Yellow Teeth into Shining White Teeth · Lien Dental Clinic · 2024-10-17

Teeth Whitening effects, reviews, and prices

Teeth Whitening Before & After

476 verified reviews

Ongoing Procedures

5 frequently asked questions

Related Treatments