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What Type of Protruding Mouth Can Benefit from Protruding Mouth Correction?

Smile D Dental Clinic · 19년 경력 교정과 전문의✅환자 중심 스마일디치과 · February 17, 2025

This post complies with Article 56, Paragraph 1 of the Medical Advertising Act and was written directly by Smile D Dental Clinic to provide accurate medical information. Accordingl...

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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: Smile D Dental Clinic

Original post date: February 17, 2025

Translated at: April 20, 2026 at 6:35 PM

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

| This post complies with Article 56, Paragraph 1 of the Medical Advertising Act and was written directly by Smile D Dental Clinic to provide accurate medical information. Accordingly, please note in advance that this is a simple medical information article that does not require medical advertising review. |

What Type of Protruding Mouth Can Benefit from Protruding Mouth Correction?

Hello.

I’m Oh Su-hwan, the chief dentist of Smile D Dental Clinic and a specialist in orthodontics with 18 years of experience.

There is a well-known self-diagnosis method for a protruding mouth.

It involves placing your index finger from the tip of your nose to the tip of your chin and checking whether your lips touch it.

If you have done this test every time and thought, “I wish my mouth would go in just this much,”

you have probably considered protruding mouth correction or surgery at least once.

What you may be wondering is whether orthodontics can produce dramatic results comparable to cosmetic surgery,

or whether surgery is necessary. Please check that through this article today.

Cases Where Protruding Mouth Correction Can Produce Dramatic Results

Protruding mouths also have different patterns.

First is dental protrusion.

This refers to a case where the teeth protrude, making the mouth stick out.

From the side, the teeth are tilted forward much more than the normal angle and appear protruded.

What Type of Protruding Mouth Can Benefit from Protruding Mouth Correction? image 1

This pattern of dental protrusion often appears when the jaw is small and there is not enough space for the teeth to align.

The other type is bimaxillary protrusion.

This is when the alveolar bone itself protrudes forward,

and compared with dental protrusion, the forward inclination angle of the teeth is not as large.

What Type of Protruding Mouth Can Benefit from Protruding Mouth Correction? image 2

Among dental protrusion and bimaxillary protrusion,

the case that can achieve dramatic results with orthodontics is dental protrusion.

What Type of Protruding Mouth Can Benefit from Protruding Mouth Correction? image 3

When the teeth are aligned and moved backward,

the forward-tilted angle of the teeth naturally becomes more upright, and the profile of the mouth naturally retracts.

Meanwhile, even in cases where the skeletal problem is not severe,

extraction orthodontics may improve a protruding mouth.

By extracting teeth, creating space, and aligning the teeth, changes in the mouth profile can be induced.

However, there are also cases where orthodontics has limitations.

In skeletal protruding mouth cases with a large discrepancy in the position of the upper and lower jaws, orthodontics alone has limitations.

In such cases, surgical orthodontic treatment (jaw surgery, protruding mouth surgery) may need to be combined with orthodontic treatment.

Also, when the problem is the protrusion of the jaw itself rather than the teeth,

orthodontics alone makes it difficult to expect sufficient change.

In these cases, surgical methods should also be considered.

The important thing is to analyze the cause of your protruding mouth through consultation with an experienced orthodontic specialist.

✅ Whether the cause of the protruding mouth is a tooth problem or a jawbone problem

✅ Analyze the overall facial skeleton through detailed examinations such as 3D CT

✅ Predict through simulation whether improvement is possible with orthodontics alone or whether surgical intervention is needed

You should begin orthodontic treatment only after sufficient consultation so that you do not later regret inadequate results.

Protruding Mouth Correction? Is Extraction Always Necessary?

Meanwhile, whether or not extraction is needed in protruding mouth correction is also a question many people have.

Whether extraction is necessary depends on the individual’s teeth alignment, jawbone structure, and degree of protrusion.

Below, I will briefly explain when extraction is needed and when it is not.

Cases Where Extraction Is Necessary for Protruding Mouth Correction

✔️ When there is not enough space for tooth alignment

After evaluating the angles and positions of the upper and lower front teeth, if the teeth are severely crowded,

space needed for correction is created through extraction.

In general, premolars (small molars, the fourth teeth) are often extracted.

✔️ When the teeth are severely crowded (moderate to severe alignment problems)

✔️ When the protrusion is severe and the lip line needs to be moved backward

What Type of Protruding Mouth Can Benefit from Protruding Mouth Correction? image 4

✔️ When improvement of the facial profile is important

To harmonize the lines of the nose, mouth, and chin, backward movement after extraction may be necessary.

If reducing the protrusive appearance requires consideration of lip thickness and the aesthetic line, extraction is considered.

However, if the lower jaw is protruded, extraction may instead make the facial shape look unnatural,

so careful judgment is required.

Cases Where Orthodontics Is Possible Without Extraction

✔️ When the degree of protrusion is mild

Mild protruding mouth cases can be improved without extraction.

✔️ When space can be secured

With IPR (interproximal reduction), you can create space by minimally reducing the teeth between them,

or you can widen the arch itself using an expander to secure space.

In summary, when deciding whether extraction is necessary, the following factors are considered:

  • Degree of protrusion and tooth alignment status
  • Need for changes in the side facial profile
  • Temporomandibular joint health
  • Periodontal condition (gum bone condition)
  • Age and previous orthodontic treatment history

It is not simply a matter of creating space, but of comprehensively considering facial shape, functional issues, and the patient’s aesthetic needs

when deciding whether extraction is necessary.

What Type of Protruding Mouth Can Benefit from Protruding Mouth Correction? image 5 Orthodontic treatment for a protruding mouth varies depending on the cause.

If it is simply a tooth alignment problem, orthodontics alone can have a major effect,

but if it is a skeletal problem, surgical orthodontic treatment may need to be considered as well.

The most important thing is to understand your condition accurately.

Please analyze the cause of your protruding mouth through consultation with an experienced orthodontic specialist,

and establish a treatment plan that fits your situation.

This has been Smile D Dental Clinic. Thank you.

| ※ All treatments may cause side effects depending on the individual, so please proceed after sufficient consultation. |

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