2026-09-22
Gangnam Nasolabial Angle Correction Specialist: Improving the Look of Protruding Mouth with Rhinoplasty
Learn how nasolabial angle correction in Gangnam improves the appearance of a protruding mouth by harmonizing the nasal tip, columella, and upper lip without implants.
From the profile view, my mouth looks like it is sticking out. Will this procedure make a difference?
Many patients come in with this exact question.
However, just because the mouth appears prominent does not mean the underlying cause is always the same.
First, it is essential to distinguish whether the actual position of the mouth is protruded, or if the nasal tip and columella are retracted, making the mouth appear relatively prominent by comparison.
Rather than viewing nasolabial angle correction simply as a procedure to widen an angle, it is crucial to analyze the relationship between the nose and the upper lip first.
Today, I will explain what the nasolabial angle is, how it relates to the appearance of a protruding mouth, and why the columella and alae must be assessed together.
Table of Contents |
1. Where exactly is the nasolabial angle? |
2. Does an acute nasolabial angle mean I have a protruding mouth? |
3. Does nasolabial angle correction simply widen the angle? |
4. Why must the columella and alae be evaluated together? |
5. What criteria should you check when considering nasolabial angle correction? |
Where exactly is the nasolabial angle?
The nasolabial angle refers to the angle formed at the intersection between the columella (the tissue pillar between the nostrils) and the upper lip when viewed from the profile.
Generally, an angle of 90–95 degrees for men and 95–105 degrees for women is considered ideal.
However, assessment should never rely on degrees alone.
Depending on the positions of the nasal tip and columella and how they transition into the upper lip, the impression given in profile can vary significantly even with identical angle values. Therefore, nasolabial angle correction requires a comprehensive evaluation of surrounding anatomical relationships.
Does an acute nasolabial angle mean I have a protruding mouth?
An acute (narrow) nasolabial angle does not automatically indicate dental or skeletal bimaxillary protrusion.
While true protrusion of the teeth or lips certainly exists,
if the nasal tip or columella sits further back, the mouth can appear relatively more prominent in contrast.
Therefore, when considering nasolabial angle correction, the first step is to differentiate between true mouth protrusion and a mouth that only appears prominent due to the nose.
Nasolabial angle correction is not synonymous with treating bimaxillary protrusion itself.
The reasons why a mouth appears protruded can be categorized as follows:
• Primary protrusion of the mouth itself → The cause cannot be determined solely by the nasolabial angle. |
• Nasal tip and columella are retracted, making the mouth stand out relatively → Evaluate the positions of the nasal tip and columella together. |
• The transition from the nasal tip to the upper lip appears unnatural → Assess both the nasolabial angle and columellar position simultaneously. |
Rather than deciding on nasolabial angle correction based simply on the impression that the mouth looks prominent, one must clearly identify which anatomical structures are affecting the profile line.
Does nasolabial angle correction simply widen the angle?
Nasolabial angle correction should never be determined by simply making the angle wider just because it is acute.
If the columella is retracted inwards, one must investigate the underlying cause of this retraction as well as the position of the nasal tip.
Conversely, if the columella hangs downward excessively, pulling or lowering it further in the same direction would be improper.
Distinguishing whether the columella is retracted or hanging is far more important for establishing the surgical plan than merely measuring the degree of the angle.
Observed Condition | Areas to Evaluate Together | Assessment |
Columella appears retracted | Nasal tip · Columella | Identify underlying cause of retraction |
Columella hangs excessively | Columella · Alar rims | Assess distance and spatial relationship between both areas |
Mouth appears relatively protruded | Nasal tip · Upper lip | Differentiate from true dental/skeletal protrusion |
Noticeable nostril exposure | Columella · Alar rims | Check positional relationship between both structures |
At our clinic, we perform nasolabial angle correction via endonasal (closed) incisions without using artificial implants.
This approach refines necessary areas by analyzing the spatial relationship among the nasolabial angle, ACR, and nasal tip projection.
Particularly in cases of "perceived mouth protrusion"—where skeletal protrusion of the gums or teeth is not severe, but the mouth appears prominent due to the nasal structure—nasolabial angle and ACR correction can be an effective option.
Conversely, if severe skeletal protrusion exists, the required treatment differs entirely from adjusting the nasolabial angle alone, meaning accurate diagnosis of the root cause is mandatory.
Why must the columella and alae be evaluated together?
In nasolabial angle correction, the positional relationship between the columella and the alar rims must always be examined.
This is referred to as the ACR (Alar-Columellar Relationship).
Put simply, it is the standard used to assess the relative height and position of the nasal alae versus the columella when viewed from the side.
Ideally, the columella should rest about 1 to 2 mm lower than the alar rims, forming a gentle, harmonious curve between the two.
If the columella hangs down too far or is excessively retracted, the degree of nostril show changes significantly, as does the visual length of the nose. Therefore, rather than viewing the nasolabial angle in isolation, the ACR must always be evaluated concurrently.
The frontal appearance is equally vital.
If the columella is retracted inward so that it aligns horizontally with the alar base, the nose may look overly wide, or the philtrum may appear disproportionately long.
On the other hand, if the columella hangs low, a completely different surgical strategy is needed than for a retracted columella.
A retracted columella and a hanging columella may cause visually similar concerns, yet the structural positions that need adjustment are fundamentally different.
What criteria should you check when considering nasolabial angle correction?
When searching for a clinic renowned for nasolabial angle correction in Gangnam, look beyond whether they simply provide specific target degrees. Instead, check if they clearly diagnose and explain why your current profile looks the way it does.
Because this is not a concern that involves the nasal tip alone, it is essential that the surgeon comprehensively evaluates the relationship between nasal shape, columella, alae, and upper lip.
Having focused on nasal surgery for over 20 years, this is precisely why I emphasize that nasolabial harmony cannot be reduced to a single isolated angle.
Every individual features different anatomical positioning across the nasal tip, columella, and alar margins; distinguishing which component shapes the profile line must come first.
Only then can the required surgical correction be tailored precisely to the patient's anatomy.
Many people troubled by a prominent mouth consider orthodontic treatment or even double-jaw (orthognathic) surgery.
Yet extensive procedures can feel overwhelming, while leaving an unsatisfying profile unaddressed is equally difficult.
In reality, many patients do not have true bimaxillary protrusion; rather, their mouth appears noticeable purely due to the placement of the nasal tip or columella.
Rather than deciding on a specific procedure beforehand,
I recommend first determining whether your concern stems from dental/jaw protrusion or from the aesthetic transition connecting the nose and mouth.
Dr. Hyung-taek Kim, Chief Director of Kowon Plastic Surgery |
Finding the Nose That Truly Harmonizes With Your Face |
Frequently Asked Questions
Does a narrow nasolabial angle always require protruding mouth surgery?
No. If the mouth appears relatively prominent due to a retracted nasal tip or columella rather than actual dental or jaw protrusion, nasolabial angle correction can significantly improve the profile.
Is nasolabial angle correction simply about widening the angle?
It is not merely widening numeric degrees. It requires evaluating whether the columella is retracted or hanging, as well as the anatomical relationship between the nasal tip and upper lip before making adjustments.
Why evaluate the ACR (Alar-Columellar Relationship) during nasolabial angle correction?
Because the relative positions of the alae and columella directly affect facial harmony and nostril visibility. Ideally, the columella rests 1–2 mm below the alar rim for a balanced nose and philtrum ratio.
Are implants always used in nasolabial angle correction?
Not necessarily. In our clinic, we perform the procedure without implants by utilizing closed internal incisions to adjust the spatial relationship among the nasolabial angle, nasal tip, and ACR.