Sillim-dong Dental Clinic - Why Does Resin Discolor After Treatment?

Hello, I’m Kang Dong-ho, the chief director of Yonsei Uline Dental Clinic, Sillim-dong branch, near Exit 7 of Sillim Station in Sillim-dong, Gwanak-gu.

Today, I’ll organize and explain something many people are curious about:

the lifespan of resin treatment, and then the key points in choosing materials for laminate veneers and inlays.

In fact, when it comes to resin treatment, what matters far more than “how long it lasts” is how the treatment is performed — that is, the quality of the procedure.

Even with the same resin, some patients can use it for a long time without problems depending on the dentist’s attention to detail and the operator’s sensitivity, while others experience discoloration within a few years.

Resin is a treatment that requires a lot of hands-on work and precision, so there can be significant differences depending on the operator.

And the patient’s lifestyle also has a big impact.

If you drink coffee or tea often, or if you smoke, staining can easily appear at the border between the tooth and the resin.

This kind of light staining can be sufficiently improved at the clinic through stain removal.

Even so, I usually recommend replacing it about once every five years, though in reality many people use it much longer.

If aesthetics are important, it’s a good idea to have it checked regularly and decide when to replace it.

Now, let’s move on to the laminate veneer topic many people ask about.

Laminate veneers have advanced a lot, and thanks to better adhesive performance and improved material properties, they can last a long time if they are made well and bonded accurately.

What matters here is “what material the laminate veneer is made of.”

Not all laminate veneers are the same ceramic, and their characteristics differ depending on their composition.

Some materials are focused on hardness,

while others are made with components that are more favorable for bonding.

Laminate veneers designed mainly for hardness have good durability, but their bond strength may be lower.

Materials optimized for bonding are relatively more prone to chipping, but once they are attached to the tooth, their retention is very good.

Because laminate veneers are thin, the higher the bond strength, the lower the risk of them coming off.

However, if you want a design that extends longer than the tooth, that area has a higher risk of breaking.

That’s why it’s important to balance aesthetics and durability well during the design stage.

In the past, there were cases where laminate veneers came off all at once like a fingernail, and in most cases this was caused by two things: problems during the bonding process, or the use of materials that were not suitable for bonding.

Next, since many people also ask about inlays, I’ll explain those as well.

There are many types, such as ceramic inlays, hybrid inlays, and resin inlays, so ceramic may seem better. But that is not actually the case.

Ceramic is often too hard and has lower adhesion, so it can actually cause the tooth to crack or the restoration to come off.

For this reason, our clinic does not recommend ceramic inlays, and in practice we almost never use them.

Laminate veneers, like inlays, differ greatly in performance depending on their material composition, and which material is applied to which case determines the treatment outcome.

Material selection is difficult for patients to judge, and it is safest for a dentist with extensive clinical experience to make the decision based on the specific case.

In other words, whether it is resin, laminate veneers, or inlays, how long it lasts is influenced far more by the procedure, the bonding process, and lifestyle habits than by the material itself.

After thorough consultation with a specialist, the most important thing is to design the treatment with long-term maintenance in mind.

This has been Yonsei Uline Dental Clinic, Sillim-dong branch, connected to Sillim Station in Sillim-dong, Gwanak-gu.