"Doctor, I heard that I need to have four teeth extracted for orthodontic treatment...
I really don't feel comfortable having perfectly healthy teeth removed. Is it really necessary?"
Hello. I am Kim Tae-hyung, director of Gangnam Blanche Dental Clinic.
During orthodontic consultations, many people hesitate when the subject of tooth extraction comes up.
It is natural to feel reluctant when you want to straighten crooked teeth but are told that healthy, intact teeth need to be removed to do so.
As a dentist, I want to be honest: there are certainly cases in which extractions are necessary for orthodontic treatment.
However, not all orthodontic treatment is based on tooth extraction.
Today, I will explain the criteria for determining when extractions are necessary and when treatment may be possible without removing teeth.

Why Teeth Are Extracted During Orthodontic Treatment

First, let us look at why tooth extraction comes up in orthodontic treatment.
One of the main reasons teeth become crooked is a lack of space.
When there is not enough room for the teeth compared with the size of the jawbone, the teeth push against one another, causing them to become crooked or protrude.
To straighten the teeth, a corresponding amount of space is needed, and extraction is one way to create that space.
A small tooth in front of the molars is removed to secure room for the other teeth.
In other words, extraction is not the goal in itself; it is a method used when there is not enough space to align the teeth.
Therefore, if space can be created in another way, there are cases in which teeth do not need to be removed.
Ways to Create Space Without Extractions

Today, there are several ways to secure space without extractions.
These include creating space by minimally reshaping the sides of the teeth, moving the molars backward to increase space, or slightly widening a narrowed dental arch outward.
Of course, these methods are not suitable for every case.
If the lack of space is severe or the front teeth protrude significantly, forcing non-extraction treatment may instead damage the gums or lead to an unstable result.

That is why Blanche Dental Clinic first evaluates whether non-extraction treatment is possible, but does not insist on it at all costs.
Removing fewer teeth is not always the right answer; the right choice is the one that suits the condition of your teeth and jaw.
「Cases That May Require Extraction-Based Orthodontic Treatment vs. Cases That May Be Possible Without Extractions」
| Category | Cases that may require extraction-based orthodontic treatment | Cases that may be possible without extractions |
|---|
| Degree of crowding | There is substantially insufficient room for the teeth | The amount of missing space is not significant |
| Protrusion of the front teeth | The lips protrude significantly and the teeth need to be moved inward | The protrusion is not severe |
| Room in the dental arch | There is little room to widen the arch | There is room to slightly widen the arch or move the molars |
| Condition of the gums and bone | Moving the teeth excessively would place stress on the gums | There is sufficient room for the gums and bone to tolerate tooth movement |
| Treatment approach | Extraction is a reasonable way to secure space | First consider creating space without removing teeth |
The Decision Can Differ Even for Similar Mouths

The important point here is that the decision between extraction and non-extraction treatment cannot be made based on appearance alone.
We need to assess how far the front teeth protrude, whether the supporting jawbone provides enough room to move the teeth, and how the profile of the lips will change from the side.
This is why one person with similar-looking crowding may be treated adequately without extractions, while another may benefit more from extraction.
For this reason, I do not automatically recommend extractions during orthodontic consultations.
First, I use a detailed examination to calculate how much space is needed to align the teeth and whether that space can be created without extractions.
In fact, a single analysis of X-rays and dental models can provide a fairly good indication of whether extraction is likely to be necessary.
Removing healthy, intact teeth is an irreversible decision, so I believe it should be considered with the utmost care.
To sum up, extraction is a method used when necessary in orthodontic treatment, not a mandatory step for every orthodontic case.
What matters is carefully determining whether extractions are necessary in your case before removing any teeth.
At Blanche Dental Clinic, we thoroughly assess whether treatment can be performed without extractions first, and recommend extraction only when it is truly necessary.
If you are considering orthodontic treatment and are worried about tooth extraction, we will first help you examine whether your case may be treated without removing teeth.
This was Gangnam Blanche Dental Clinic. Thank you.
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