Hello. I am Kang Dong-ho, the chief director of Yonsei Uline Dental Clinic, Sillim Branch, near Sillim Station in Sillim-dong, Gwanak-gu.
Implants do not develop cavities like natural teeth do,
but over time, the color or appearance of the gums
may look different.
That is why many people ask,
“Can implants also discolor?”
In reality, rather than a problem with the prosthesis itself,
the color often appears different because of changes
in the gums and surrounding tissues.


Natural teeth can gradually turn gray after root canal treatment
because of internal changes in the tooth.
In particular, the older the tooth, the darker and duller the color
may become.
By contrast, implants have a different structure.


The part that acts as the root is made of titanium,
and the upper prosthesis is made from materials such as
ceramic or zirconia.
These materials generally do not undergo major color changes
over time.


However, when implants are used for a long time,
the gums may recede or become thinner,
causing the internal metal structure to show through.
Especially in areas where aesthetics are important, such as the front teeth,
if the gums are thin, the titanium color may appear bluish
or grayish through the tissue.
Patients often feel that this means the “implant has discolored.”



In the past, PFM prostheses, which apply porcelain over metal,
were widely used.
If the gums recede over time, the border between the metal and porcelain
can become visible and look like a black line.
In such cases, remaking the prosthesis
can improve the appearance to some extent.




However, if the metal color is showing through
from beneath the gums, simply replacing the prosthesis
does not always solve the problem.
If the gum tissue itself is thin or there is insufficient bone,
the internal structure may continue to show through.


In such cases, gum grafting or
aesthetic retreatment may also be considered.
In particular, when front-tooth implants are performed
in younger patients, both function and aesthetics
should be fully considered.

This is because over time, the gum line may change
and the possibility that metal may show through
also needs to be taken into account.
This is also why it is difficult to see the treatment as simply
“just getting an implant and being done with it.”

Recently, ceramic materials such as zirconia
have been used more often for aesthetic reasons.
This is because they create less of a metal-like appearance
and can produce colors similar to natural teeth.

However, ceramics also have the possibility of breaking under strong impact,
and each material has its pros and cons,
so the choice may vary depending on the patient’s condition.
Also, in the case of insurance-covered implants,
there may be limitations on the materials that can be used
or on the treatment methods.
Because they are often designed with function as the priority,
additional consultation may be needed in areas where aesthetic demands are high.
In the end, color changes in implants are often not simply
about the prosthesis discoloring, but rather result from
a combination of the gums, bone, prosthetic material,
and structural components.
In particular, front-tooth implants are important to plan carefully
from the initial treatment stage, including aesthetic considerations,
so that they can remain natural-looking over time.
This has been Yonsei Uline Dental Clinic in Sillim-dong, Gwanak-gu.