Hello.
This is Yonsei Dagam Dental Clinic in Geuryodong.
When you look at celebrities’ bright smiles,
they somehow seem brighter
and create a clean image.
Bright teeth actually
make the whole face look more lively
and younger,
and lead to a confident smile,
creating a positive first impression
in interpersonal relationships as well.
These days, as self-care has become popular,
there are various products available on the market
that can also be used at home.
Among them, at-home whitening products
are becoming very popular, but
unlike professional whitening,
they contain only a small amount
of whitening ingredients,
so it is difficult to expect the dramatic changes
seen in advertisements.
On the other hand, the professional whitening
we will discuss at Geuryodong Dental Clinic
is performed using a high concentration of whitening agent
under the direct supervision of medical staff.
Interestingly, professional whitening often allows
people with darker teeth
to notice a big change
after just one session.
That is because the more staining substances there are
inside the teeth,
the more room there is
for the whitening agent to work.
To use an analogy from Geuryodong Dental Clinic,
it is similar to how darker-colored clothes
respond better to bleach.
Therefore, people who have usually been
most concerned about their teeth being dark
often see a significant change.
What this shows is that
the degree of change can differ
from person to person.
Process
Before starting teeth whitening,
a basic oral examination,
periodontal care, and tooth polishing are performed.

And the existing tooth color is
accurately measured through a shade guide.
Based on this guide,
Geuryodong Dental Clinic generally aims
for about a two-step improvement in brightness.
If you want them whiter than that,
additional treatment may be performed
at set intervals,
considering the health of the teeth and gums.
First, to protect the gums,
a special protective barrier is built with Dam,
and then a high-concentration whitening agent
is applied to the tooth surface.
At this time, as the material dries,
you may experience sensitivity.
After that, a special light is shone
to enhance the effect of the applied material’s penetration.
This process is repeated twice for 15 minutes each,
for a total of 30 minutes.


Example 1: A4 -> A2 after whitening
Once the procedure is completed, most people
can confirm a change of about two shades brighter.


Example 2: A3 -> A1 after whitening
After the procedure, if proper care
is not maintained,
the lasting effect will decrease accordingly.
Therefore, it is important to follow
the precautions mentioned by
Geuryodong Dental Clinic.
Precautions
✔ Due to sensitivity to the agent,
the teeth may temporarily feel sensitive.
This usually improves naturally
as time passes.
✔ For at least 48 hours after the procedure,
smoking and beverages or foods that may cause staining
must be strictly avoided.
It is best to avoid green tea, coffee, cola, orange juice,
chocolate, wine, and curry.
✔ In some cases, parts of the teeth may turn white
and look unnatural,
which is a temporary phenomenon caused by
different densities in different areas of the same tooth.
After 1–2 weeks, the color will naturally
stabilize into a more even shade.
✔ As time passes after whitening treatment,
it is completely natural for the shade
to gradually return to the original color.
This is due to the foods and drinks
we consume in daily life,
and the natural re-staining process of the teeth.
Therefore, even after whitening is finished,
it is important to thoroughly follow the care methods
mentioned by Geuryodong Dental Clinic,
✔ receive touch-up treatment according to the dentist’s instructions,
or
undergo whitening every 6 months to 1 year
as a way to maintain bright teeth for longer.

In addition to what I’ve explained today,
there is an important fact that many people overlook.
Our teeth are actually
normally closer to yellow than pure white.
This is because the outermost layer of the tooth,
the enamel, is translucent,
and the dentin beneath it naturally has
a yellowish tone.
As we age,
the enamel becomes thinner,
allowing the dentin to show through more clearly,
so teeth appearing more yellow over time
is also part of the natural aging process.
However, if these natural changes
become a psychological burden,
they can be sufficiently improved through
safe and systematic professional treatment.
Beyond simply improving appearance,
it is a meaningful treatment that enhances
confidence and quality of life.
Through proper care and systematic aftercare,
I hope you can maintain a healthy and beautiful smile
for a long time.
This has been Yonsei Dagam Dental Clinic in Geuryodong.
Thank you!

2025.06.25~25.06.25
