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Yonsei Baro Dental Clinic · 치과미슐랭 · July 30, 2026
Hello. This is 연세바로치과, a Gangnam and Apgujeong orthodontic clinic. “Why can gums appear to protrude when the front teeth tilt inward?” “Can a gummy smile also improve with orthodon...
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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: Yonsei Baro Dental Clinic
Original post date: July 30, 2026
Translated at: August 17, 2026 at 2:23 PM
Medical note: This translation does not guarantee medical accuracy or suitability for treatment decisions.
Hello. This is 연세바로치과, a Gangnam and Apgujeong orthodontic clinic.
“Why can gums appear to protrude when the front teeth tilt inward?”
“Can a gummy smile also improve with orthodontic treatment?”
Inward-tilted teeth are not simply an issue of the front teeth being angled toward the inside. In many cases, the angle of the front teeth, the position of their roots, the gum line, and the amount of gum visible when smiling are all affected together.
Today, we will introduce an actual treatment case in which inward-tilted teeth, a deep overbite, a gummy smile, and gum asymmetry were improved with non-extraction orthodontic treatment and gum contouring.
Inward-tilted teeth refer to a condition in which the front teeth are severely angled toward the inside of the mouth. Many people think that only the teeth have fallen backward, but in reality, the tooth roots and alveolar bone are also often positioned toward the front.
As a result, they may appear as though
the gums are protruding,
the gums are prominent, and
the mouth has a cramped appearance.
In other words, inward-tilted teeth are a malocclusion that affects not only the angle of the teeth but also the shape of the gums.
There is no single treatment method for inward-tilted teeth. Depending on the patient’s dental condition and treatment goals, various options may be selected, including
Invisalign
Clippy-C orthodontic treatment
Partial orthodontic treatment -
No-preparation veneers, and more.
Because this patient also needed improvement of a deep overbite and a gummy smile, we planned non-extraction orthodontic treatment using Clippy-C orthodontics and miniscrews.
The case introduced today involves a combination of a gummy smile and inward-tilted teeth.
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This patient visited us in April 2023 to improve a gummy smile, inward-tilted teeth, and a deep overbite.
This was a severe deep overbite in which the lower teeth were completely covered by the upper teeth and could not be seen at all.
Gum asymmetry, with different gum heights on the left and right sides, was also visible.
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The front teeth were tilted backward, creating an inward-tilted appearance.
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When the front teeth are tilted backward, the gum around the front tooth roots can appear relatively prominent, making the gums look as though they are protruding.
Because there was no lip protrusion, we planned non-extraction treatment by removing the wisdom teeth, placing miniscrews, and moving the molars backward into the space created by the wisdom teeth.
The treatment goals were to improve the angle of the front teeth and intrude them to address the gummy smile and deep overbite. We also explained that gum contouring would be necessary after orthodontic treatment to address the gum asymmetry seen at the initial examination.
Treatment began with Clippy-C orthodontics.
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Miniscrews were used.
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Bite blocks were also placed on the front teeth to address the deep overbite.
Treatment continued, and was completed in January 2025.
The total treatment period was 1 year and 10 months.
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The deep overbite had improved, while the gum asymmetry remained unchanged.
Gum contouring was performed to address this issue.
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This was immediately after gum contouring.
There was a small amount of bleeding only from the areas where the gums had been swollen, with no bleeding elsewhere.
Now, let’s look at the intraoral photos after treatment.
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The occlusion is good.
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This shows the retainers in place as well.
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The symmetry of the gum line is important for smile aesthetics.
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The prominent area of gum around the roots of the upper front teeth became smoother.
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As the roots move backward with improvement of the inward-tilted teeth, the gums covering the roots also move backward.
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Now, let’s compare the facial appearance before and after treatment.
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The gummy smile was not clearly visible at the initial examination because the patient was not smiling broadly, but
the gummy smile was successfully improved after orthodontic treatment.
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The side profile clearly shows the improved angle of the front teeth, which had been tilted backward.
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The improvement in the inward-tilted teeth is also clearly visible when smiling broadly.
We hope this post is helpful for those concerned about inward-tilted teeth and prominent gums.
Depending on the degree of lip protrusion and the space analysis, non-extraction orthodontic treatment using the space from the wisdom teeth may often be possible.
Yes. The amount of gum exposed when smiling can be reduced by intruding the front teeth and adjusting their angles.
However, depending on the cause, gum contouring or other treatment may also be necessary.
It is usually performed after orthodontic treatment has been completed. Once the final position of the teeth has been established, shaping the gum line can produce a more natural and symmetrical result.
Gangnam Orthodontic Clinic, Apgujeong 연세바로치과.
Thank you.
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