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[Sinsa Station Dental Clinic] What Are the Effects and Duration of One-Day Teeth Whitening?

Seoul Centum Dental Clinic (Sinsa Branch) · ✅서울센텀치과의원✅이현섭 원장입니다. · June 10, 2025

Seoul Centum Dental Clinic, Exit 5 of Sinsa Station What Are the Effects and Duration of One-Day Teeth Whitening? ​ ​ ​ Why do teeth turn yellow? The reasons teeth turn yellow can...

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This page is an English translation of a Korean Naver Blog archive entry. For exact wording and source context, verify against the Korean archive original and the original Naver post.

Clinic: Seoul Centum Dental Clinic (Sinsa Branch)

Original post date: June 10, 2025

Translated at: April 20, 2026 at 4:19 PM

Medical note: This translation does not guarantee medical accuracy or suitability for treatment decisions.

[Sinsa Station Dental Clinic] What Are the Effects and Duration of One-Day Teeth Whitening? image 1

Seoul Centum Dental Clinic, Exit 5 of Sinsa Station

What Are the Effects and Duration of One-Day Teeth Whitening?

Why do teeth turn yellow?

[Sinsa Station Dental Clinic] What Are the Effects and Duration of One-Day Teeth Whitening? image 2

The reasons teeth turn yellow can be broadly divided into problems with the teeth themselves and external factors.

As for problems with the teeth themselves, if the enamel is thin or the dentin is thick,

or as enamel wears down with age and the dentin becomes visible,

teeth may appear yellow.

External factors such as tartar, plaque, and foods containing pigments (curry, coffee, red ginseng, wine),

and cigarettes can change the color of teeth.

Seoul Centum Dental Clinic’s One-Day Teeth Whitening

One-Day Teeth Whitening

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One-day teeth whitening is a whitening method that is completed with one session in a day,

using a high-concentration whitening agent and special LED light

to brighten teeth in a short time.

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At Seoul Centum Dental Clinic, we accurately analyze the exact cause of tooth discoloration,

and use professional whitening agents based on expert diagnosis

to create uniformly bright teeth overall.

Self Whitening vs. Professional Whitening

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Self-whitening uses a low-concentration whitening agent (containing 1–4% hydrogen peroxide)

with a custom-made whitening tray.

After applying the whitening agent directly to the tray,

you must wear the whitening tray for 2 to 4 hours every day.

Since this requires enduring discomfort for a long time,

the results can vary depending on the individual’s resolve. .

Professional teeth whitening is a treatment that can produce strong results in a short time

using a high-concentration professional whitening agent (containing 15% hydrogen peroxide)

and special light.

Although the whitening agent concentration is higher than self-whitening,

special light is used to further enhance the teeth-whitening effect.

A major advantage is that strong teeth-whitening results can be seen with 1 to 3 sessions.

Precautions After One-Day Teeth Whitening

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The first 48 hours after one-day teeth whitening are the period when the effect is best maintained.

Coffee, curry, wine, grape juice, chocolate, black tea, and similar items

are foods and drinks that stain easily, so please avoid them.


Please be careful with foods that are too hot or too cold for at least 2 days.


After whitening treatment, temporary sensitivity may occur,

but it usually improves naturally within a day or two,

so there is no need to worry too much^^!


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To maintain the effects after whitening,

regular scaling and proper brushing habits are essential!!!

[Sinsa Station Dental Clinic] What Are the Effects and Duration of One-Day Teeth Whitening? image 8 [Sinsa Station Dental Clinic] What Are the Effects and Duration of One-Day Teeth Whitening? image 9 [Sinsa Station Dental Clinic] What Are the Effects and Duration of One-Day Teeth Whitening? image 10 [Sinsa Station Dental Clinic] What Are the Effects and Duration of One-Day Teeth Whitening? image 11

This post was written in compliance with the Medical Service Act.

All treatments may have side effects, so sufficient consultation with medical staff is necessary.

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