Teeth Whitening: How Long Does It Last at a Dental Clinic? If you’re curious, let’s look at real cases — duration and maintenance

Hello.

A 3-minute walk straight from Exit 7 of City Hall Station (233 m).

This is Yonsei Yegam Dental Clinic, located directly across from Samsung Main Building.

Because it is located near City Hall Station, it is an easy place to visit from anywhere in Seoul, including Euljiro, Myeongdong, Chungjeongno, Sogang, Ewha, Sookmyung, and Gangnam Station.

As the weather gets warmer and there are more gatherings and weddings,

many people are looking into teeth whitening.

As you may know if you have tried whitening with regular whitening toothpaste or at-home care,

the whitening effect from such commonly available products is very limited. Professional teeth whitening at a dental clinic can deliver faster results and greater stability because it uses high-concentration agents handled by medical staff and expensive, clinic-only equipment that requires a lot of technical expertise.

One of the most common questions people ask before whitening is how long it lasts.

The answer has to be that it varies from person to person because it depends on many factors such as stain-causing foods, age, and lifestyle habits. And since you cannot stop eating and only drink water, the color will inevitably return over time compared to right after treatment.

When explaining the whitening cycle, we usually say that if you are maintaining it consistently, once every 6 months is a common guideline.

Using cases of patients who visited our clinic,

let’s look at how long whitening lasts.

We are posting only photos for which the patient gave consent.

CASE 1. A patient who returned a few months after whitening

Same-day scaling, treatment for the chipped area indicated by the arrow, whitening 2 sessions

Usually, when people come in for teeth whitening, they do 3 same-day sessions.

This patient chose to do only 2 same-day sessions.

Because they love coffee and drink it often,

they said they would come back later for an additional 2 same-day sessions, so they only did 2 sessions this time. With just 2 same-day whitening sessions, the teeth became as 밝아졌습니다 from the left photo to the right photo.

<6 months later>

They came back after several months and received 2 more same-day whitening sessions.

This is how they looked about 6 months later. Compared with the first photo above (compared to the time before any whitening was done), you can see that although several months had passed, the teeth did not become as dark as they were at the beginning. They also became as 밝아졌습니다 as the right side after 2 more whitening sessions.

CASE 2. A patient who returned 1 year after whitening

This was a foreign patient.

They originally came in thinking about doing 2 same-day whitening sessions, but since the tooth color was much yellower than other patients (in fact, it looked even yellower than #A3),

their teeth were so yellow that they ended up doing 3 same-day sessions. After 3 same-day whitening sessions, you can see that the teeth became much brighter.

<1 year later>

After visiting Korea again one year later,

even though they came back for whitening, you can see that the teeth had not become as yellow as they were at the beginning. This time as well, they underwent 3 whitening sessions.

Looking at these cases where patients received teeth whitening at our clinic and returned after a long time, you can see that when teeth whitening is done properly at a dental clinic,

the teeth do not return to being very yellow exactly as they were at the start, even after several months or a year.

[The whitening method may differ by clinic, so results may vary!]

Teeth whitening price. Cost

Teeth whitening price for 2026, applicable until December 31, 2026.

1. To prevent side effects, we always perform whitening after a detailed examination including a panoramic X-ray.

: The examination fee is covered by the National Health Insurance.

2. Teeth whitening

Same-day 3 sessions: KRW 330,000 (including 10% VAT: KRW 363,000).

Same-day 2 sessions: KRW 270,000 (including 10% VAT: KRW 297,000).

• By law, teeth whitening is subject to VAT,

and places that provide it without VAT are doing so through illegal channels.

• To minimize side effects such as sensitivity, whitening treatment is performed only after an oral examination.

• Same-day 3 sessions take about 2 hours, and same-day 2 sessions take about 1.5 hours, so please keep the time in mind before visiting.

• Eating is prohibited for 2 hours after teeth whitening.

https://blog.naver.com/yonseiyegam/223686449455

Just as people receive Thai massage when they go to Thailand, when foreign visitors come to Seoul, many tourists visit to get teeth whitening. This has been an introduction to teeth whitening from Yonsei Yegam Dental Clinic near City Hall Station in Seoul.