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Protruding Mouth Correction Can End Sooner Than You Think!

Dr. Prime Dental Clinic · 강남역교정치과 닥터프라임치과 · June 19, 2025

​ Hello, I’m Park Yeol, the head doctor at Doctor Prime Dental Clinic, an orthodontic clinic near Gangnam Station! ​ Are you worried about protruding mouth? Many people feel less c...

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This page is an English translation of a Korean Naver Blog archive entry. For exact wording and source context, verify against the Korean archive original and the original Naver post.

Clinic: Dr. Prime Dental Clinic

Original post date: June 19, 2025

Translated at: April 20, 2026 at 4:03 PM

Medical note: This translation does not guarantee medical accuracy or suitability for treatment decisions.

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Hello, I’m Park Yeol, the head doctor at Doctor Prime Dental Clinic, an orthodontic clinic near Gangnam Station!

Are you worried about protruding mouth?

Many people feel less confident when smiling because their mouth looks prominent, or feel that their face looks cramped.

You may be hesitant because you think, “Orthodontic treatment will take a long time and be difficult.”

But I have some good news for you!

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Protruding mouth correction can actually be finished much faster than you might think!

Today, I’ll personally explain the secrets of protruding mouth correction in an easy and simple way, so you can better understand it.

Now, shall we begin?

Protruding mouth: In what cases can it be corrected quickly?

A protruding mouth is a case where the upper and lower front teeth protrude forward, making the mouth look prominent.

Many people think protruding mouth correction always takes 2 to 3 years and requires extracting four upper and lower teeth.

But that does not apply to every case! Protruding mouth can largely be divided into two types.

  1. Both the upper and lower front teeth protrude.

This applies to people whose upper and lower front teeth both extend forward, and when they close their mouths, both the upper and lower lips feel strained and it is difficult to close the mouth comfortably.

In such cases, four premolars in the upper and lower jaws may need to be extracted, and the front teeth have to be moved back significantly, so treatment can take 2 years to 2 years and 6 months or more.

Because the upper and lower premolars are extracted and the upper and lower front teeth need to move back into the extraction spaces, the orthodontic period naturally becomes that much longer.

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Before orthodontic treatment

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After orthodontic treatment

  1. Only the upper front teeth protrude

But not every protruding mouth case is the same as in number 1.

There are people whose upper front teeth protrude forward while the lower teeth are relatively even.

These people also have difficulty closing their mouths naturally, but when they close their mouths, the upper lip curls toward the lower lip, and the lower lip feels as if it is curling inward toward the upper lip. You could say the lower lip turns slightly inside out? That is the kind of feeling.

In such cases, only the upper premolars are extracted on both sides, and only the upper front teeth are moved into the extraction spaces, so the treatment period is greatly reduced.

In many cases, treatment is completed within 1 year and 6 months to 2 years!

People in category 2 sometimes ask this question:

“If only the upper front teeth are the problem, do the lower teeth not need orthodontic treatment?” That’s a very good question!

But the lower teeth also need treatment.

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Before orthodontic treatment

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After orthodontic treatment

Because orthodontic treatment is not simply about pulling the front teeth backward; it is the process of making the upper and lower teeth fit together properly.

Only the upper teeth are extracted, but that does not mean the lower teeth can remain in place.

The upper front teeth and even the upper molars move slightly as well, so the lower teeth also need to move accordingly. That way, when treatment is finished, the appearance of the mouth becomes more attractive, and the bite between the upper and lower teeth and the chewing function can finish comfortably.

What I always pay attention to in treatment is creating an orthodontic plan that fits the patient’s dental condition exactly.

That is why, once orthodontic treatment is finished, not only does the mouth look better, but the entire face becomes more harmonious as well.

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