Hello.
The Square Dental Clinic,
“Designing first impressions.”

“My crown, which was placed
10 years ago, has changed color.”
“It doesn’t hurt, but
should I replace my old front tooth crown?”
Many patients actually share concerns like these.

Because the front teeth are noticeable as soon as you open your mouth, many people wonder whether they need to replace an old front tooth crown that is beginning to discolor, even though it does not particularly hurt or cause other discomfort.
There is also the concern that crowns require the tooth to be filed down, making it difficult to make a decision readily. (^^;)
In cases like this, there are ways to replace the front tooth crown while preserving as much of the remaining natural tooth as possible.
In this column, we will discuss the following three topics one by one:
- Problems that can occur when a restoration is left untreated
- Advice on replacing front tooth crowns
- “Minish,” an alternative to crowns


What happens if an old restoration is left untreated?
Many people think, “It doesn’t really hurt, so it should be okay to postpone replacing my front tooth crown.”
Of course, this statement is not necessarily wrong in every case.
However, this is something that should be decided after a precise examination by a dental professional; it is not recommended to leave the decision entirely to the patient.

Because restorations are not permanent, the cement can loosen over time and create gaps. Saliva and bacteria can then enter through these gaps, potentially causing secondary decay (cavities).
In fact, when restorations that have been in place for more than 10 years are removed, secondary decay is found to have progressed inside in many cases.

If you:
🦷 Have been using a restoration for several years or more,
🦷 Are in an unclear situation where a dental X-ray does not show any obvious cavities,
🦷 And have no particular symptoms,
it may be okay to monitor the condition rather than immediately replacing your front tooth crown.

However, teeth treated with crowns have often undergone root canal treatment. As a result, patients may not notice it themselves, but there are many cases in which the bone has already deteriorated and chronic inflammation has progressed beneath the restoration.
If this goes unnoticed and the restoration is simply left untreated, the natural tooth may eventually be lost. That is why having the tooth examined at a dental clinic is especially important.

| * Before-and-after case of front tooth crown replacement* (Left) 26. 04. 27 / (Right) 26. 04. 29 * Published with the patient’s consent. * All treatments may involve side effects, so please make a decision after having a sufficient discussion with your treating doctor. |
What should you keep in mind when replacing a crown?
Crowns are a traditional mainstay of dental treatment and are an excellent way to protect damaged teeth.
However, the disadvantage of crowns is that they require the tooth to be filed down.
Unless the reason for replacing the crown is solely that its color has changed, with no other issues at all, additional tooth reduction is often necessary.

This is because, during the process of removing the existing crown, it is necessary to:
✔️ Remove the old cement
✔️ Treat any problematic areas
✔️ Reshape the tooth so that the new crown fits precisely
Naturally, the more deeply decay has progressed, the more tooth structure needs to be removed.
The front teeth are particularly thin to begin with, so the remaining tooth structure tends to decrease as crowns are repeatedly replaced.

You may want to consider “Minish.”
Continuing from the points discussed above, if you are hesitant about replacing your crown with another crown, “Minish” may be an alternative.

Minish is a treatment that creates a restoration from a material whose properties are most similar to those of a natural tooth and bonds it to the damaged tooth, with the goal of restoring function and appearance so that it works and looks like the original tooth.
If you switch to Minish when replacing a crown, less tooth structure may need to be removed than when making another conventional crown. The appearance—including translucency, color, and shape—may also be significantly improved.
Another advantage is that the margin may appear more natural than that of a crown.

However, Minish cannot necessarily be applied to every tooth that has already received crown treatment.
-
If too much of the original tooth has already been removed,
-
If the tooth is too weak,
-
Or if there is a history of major fracture,
replacing it with another crown may be the better choice.
Therefore, if you are reading this, it would be advisable to visit a dental clinic where specialists in orthodontics, specialists in advanced general dentistry, and other professionals who can provide a multifaceted diagnosis are available.
There, you can have a sufficient discussion about whether your restoration needs to be replaced and which treatment would be most suitable for you.


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This article was written for those who may be concerned about an old front tooth crown.
Let me summarize the key points from today’s discussion.
| 1️⃣ If it has been a long time since your restoration was placed, we recommend visiting a dental clinic for an evaluation of whether it needs to be replaced, even if you do not have significant symptoms. |
|---|
| 2️⃣ Because the front teeth are thin, repeated crown replacement has the disadvantage of gradually reducing the remaining tooth structure. |
| 3️⃣ If enough natural tooth remains, “Minish,” which minimizes tooth reduction and maximizes aesthetics, may be an alternative. |
If you have any further questions for us, you can leave a comment or send us a question through Naver TalkTalk. ^^
Beyond creating a beautiful first impression,
we focus on helping patients restore
their quality of life and confidence.
This has been The Square Dental Clinic.
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| This article was written in compliance with Article 56, Paragraph 1 of the Medical Service Act so that you can obtain accurate information. Rather than simply promoting our services, we wanted to transparently share what takes place in an actual treatment setting. Instead of contacting us immediately after reading this article, it is enough simply to take away accurate information. |