Hello!
The smile designer who can turn your wishes into a beautiful smile,
I am Yang Sang-ho, a dentist at Magok Station Dental Clinic.
Today, we will take a look at front tooth resin discoloration that has occurred mainly in the four front teeth (teeth 11, 12, 21, and 22)
and the laminate veneer treatment used to address it.
Why do front teeth that were treated in the past
become discolored?
In fact, when resin treatment was first done,
it probably looked natural and was not noticeable.
However, due to the characteristics of this restorative material
and natural changes over time,
the color can change.
Let me explain why.
- Changes according to the characteristics of the material
Front tooth resin treatment uses a plastic compound material
that is similar to the natural tooth color
to fill in empty spaces.
Its major advantage is that it can be treated in one day
with little removal of the tooth.

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However, as shown in the photo above,
the material itself has the property of absorbing moisture over time.
Because it is prone to staining from food pigments,
if you often consume coffee or curry,
the discoloration of the front teeth may progress more quickly.
- Staining and wear at the margin
The border where the resin and the tooth meet
is an area where tiny gaps are likely to form.
If pigments enter these gaps,
a brown or black line can appear
as if it were outlined with a band,
and if it continuously receives chewing force,
the resin surface may become rough
or may chip slightly.
In such cases, it can create a poor aesthetic impression,
which leads people to seek dental care.
So, for discolored front teeth like these,
what is the best way to improve them?
Simply removing the resin
and refilling it with resin again
can be one option.
However, the central incisors (teeth 11 and 21) and lateral incisors (teeth 12 and 22),
which are most visible when smiling, are areas where aesthetics are important,
so if discoloration keeps recurring
or if you want to improve the shape and angle of the teeth as well,
laminate veneers can be an alternative.
What are the criteria for needing laminate veneer treatment?
At Magok Station Dental Clinic,
we think it can be broadly divided as follows.
Solving repeated discoloration and staining

Example of resin staining
If discoloration continues to occur
even after repeated resin treatment,
it is worth considering changing the material.

Laminate veneers are made of porcelain (ceramic),
so the surface is smooth and hard
and is highly resistant to discoloration.
Even after a long time,
they have the advantage of maintaining
their original translucency and gloss.
Ideal proportions and gum line
If there are gaps between the front teeth
or the tooth sizes are irregular,
there are limits to what simple resin can do.
At this point, using laminate veneers
makes it possible to design the teeth to match
the ideal tooth proportions (the golden ratio).

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The photo above shows the planning stage
of the design process during treatment,
where, as indicated by the white lines,
the symmetry of the gum line
and the width and length of the teeth are considered.
In particular, the lateral incisors next to the front teeth
are often relatively smaller
or have irregular shapes.
When these arrangements are neatly aligned,
a much tidier and more refined smile can be created.
Then,
how does the specific treatment process proceed?
From the perspective of Magok Station Dental Clinic,
the important thing is the process of finding "naturalness."
The first step is to remove the existing blotchy resin
and smooth the tooth surface.
After that, shade taking is performed,
considering the individual's skin tone
and the color of the adjacent teeth.
During treatment, through sufficient communication in this process,
the desired brightness and translucency are decided.

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This is what it looks like after the treatment is completed.
The previously discolored areas have disappeared,
and a clear, translucent feeling has been restored.
After treatment is finished,
maintenance is more important than anything else.

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Although laminate veneers are highly durable,
they are still thin ceramic plates
that have been attached.
Therefore, it is better to avoid habits such as
cracking ice with the front teeth
or biting into hard fruit.
Also, do not forget to check the gum condition
around the prosthesis through regular checkups.
Of course, laminate veneers are not
the right answer for every case.
At Magok Station Dental Clinic,
we believe the decision should be made by carefully considering
various factors such as the amount of tooth reduction and the bite relationship.
Through an accurate diagnosis,
we hope you find the solution that fits your dental condition exactly.
We sincerely hope that your bright smile
will continue to shine for a long time.
💡 Front tooth treatment, ask anything!
Q1. If front tooth resin becomes discolored,
can whitening treatment make the resin white again?
A1. Unfortunately, that is difficult.
Tooth whitening works by breaking down the pigments in natural teeth
to make them brighter.
Because whitening agents do not react with resin,
which is a plastic material,
whitening may brighten only the natural teeth,
making the resin area stand out even more.
Discolored resin needs to be removed and retreated.
Q2. Between front tooth resin and laminate veneers,
which lasts longer?
A2. In general, laminate veneers last longer.
Resin tends to discolor or wear down easily after an average of 5 to 10 years,

AlJazairy YH. Survival Rates for Porcelain Laminate Veneers: A Systematic Review. Eur J Dent. 2021 May;15(2):360-368. doi: 10.1055/s-0040-1715914. Epub 2020 Oct 1. PMID: 33003243; PMCID: PMC8184312.
while there are many reports that laminate veneers have a 90% survival rate for up to 10 years.
The reason is that because they are made of porcelain,
they hardly discolor and are highly durable,
so if properly maintained,
they can be used cleanly for a long time.
This was Yang Sang-ho, director of Magok Station Dental Clinic.
Thank you for reading this long post.

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