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About Chin Retraction Symptoms and Causes

Choi & Lee Dental Clinic · 20년 이상 경력, 최앤이치과 · November 28, 2025

​ ​ ​ Many different factors affect the creation of a satisfying appearance. It is completed through a balanced combination of various elements, including the facial shape as well...

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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: Choi & Lee Dental Clinic

Original post date: November 28, 2025

Translated at: April 20, 2026 at 6:16 PM

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

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Many different factors affect the creation of a satisfying appearance. It is completed through a balanced combination of various elements, including the facial shape as well as the harmony of each facial feature. In particular, the lower face accounts for a significant part of forming a favorable impression. For this reason, many people prefer a natural connection between the mouth and jawline.

A short, blunt chin is usually called a retruded chin. In general, the symptoms of a retruded chin mean that the lower jaw is smaller than the upper jaw, which can make the face look shorter or make it difficult to close the mouth properly. Another cause of a retruded chin can be genetic influence or delayed development of the lower jaw. A retruded chin is often accompanied by protrusion of the mouth, and I will explain this in more detail.

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A retruded chin is commonly a case in which the lower jaw has grown less than the upper jaw, so the junction between the jaw and neck is not distinct and the mandible is much further back, which can make the mouth appear to protrude relatively more.

Because of this, it can create an impression of being blunt or dissatisfied.

This is not limited to a simple cosmetic complex. Since the upper and lower jaws do not fit together properly, it becomes difficult to close the mouth, which leads to mouth breathing. If this symptom continues, saliva, which helps cleanse and sterilize the mouth, can dry up, and this may also be accompanied by tooth decay and bad breath.

In addition, when the lower jaw sits farther back, it presses on the airway and narrows it. As a result, it becomes difficult to obtain smooth airflow through the airway during sleep, which can lead to sleep disorders such as sleep apnea and snoring.

Moreover, harmful substances that should have been filtered by the nose may enter the respiratory tract directly, which can lead to respiratory diseases and other complications, so special caution is needed.

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Since a retruded chin is accompanied by several aesthetic and functional problems, it should be improved by finding an appropriate method. There are several alternatives, but broadly speaking, you can consider surgical methods and non-surgical retruded chin correction. The correction method will differ depending on the cause in each individual.

First, there are cases in which the lower jaw is very small and the boundary between the neck and chin is unclear. In such cases, because the shape and angle of the bone are short and receded, improvement through orthodontic correction is difficult.

On the other hand, if the person has a normal jaw skeleton but the upper jaw is underdeveloped and the lower jaw sits back, non-surgical retruded chin correction can provide sufficient improvement.

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Because the upper jaw is larger than the lower jaw in cases of a retruded chin, the gum bone in the upper jaw may become excessively developed, making the mouth appear relatively protruded. If retruded chin correction is performed, this part can also be improved at the same time.

Retruded chin correction is carried out by widening the upper jaw with an upper jaw expansion device and pulling the lower jaw, which had been pushed backward, forward. In this way, even protrusion of the mouth can be improved naturally.

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The key to correcting a retruded chin without surgery can be said to be the following two things: an arch expansion device and a handmade wire.

First, the arch expansion device is a type of special orthodontic appliance that expands a narrow upper jaw. It helps not only with retruded chins, but also in cases that require jaw correction, such as underbite and facial asymmetry.

With a retruded chin, the upper jaw is small, so the lower jaw cannot settle into its normal position. In the end, the key step is to return the lower jaw to its proper position. Using an upper jaw expansion device, the size of the upper jaw that had been constricting the lower jaw is expanded. After that, the lower jaw is brought forward so it can return to its proper place, allowing for a natural jawline. At this point, you may notice an improvement in appearance, and you can also confirm that breathing becomes much easier as the compressed airway opens up.

In addition, by carrying out jaw correction and orthodontic treatment together, you can improve not only the jaw shape but also irregular teeth alignment and malocclusion. Please note that if only the teeth are aligned, it may be difficult to achieve all the desired results.

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The handmade wire plays a major role in the next stage of orthodontic treatment. It is made based on each individual’s facial skeleton, teeth, and pattern of malocclusion, and applies an appropriate level of pressure to the right places, enabling more efficient tooth movement. Because it is custom-made to fit each person’s condition, it allows for more delicate and precise correction than ready-made wires and helps prevent secondary problems later on.

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As such, non-surgical correction is a high-difficulty process that requires more complex and advanced technical skill than general orthodontic treatment. Rather than simply attaching appliances to move the teeth, it involves analyzing the individual’s oral structure, tooth alignment, and jaw angles from multiple perspectives and proceeding with the method that is appropriate for them.

Therefore, the most important factor is the medical staff who are responsible for carrying out the non-surgical correction. They must have a wide range of cases, and without a clear goal it is difficult to achieve successful results. Also, to obtain more satisfying results from non-surgical retruded chin correction, it is necessary to check the medical staff’s experience and skill. In this case, it will be very helpful to review various real correction cases on the institution’s website before treatment.

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When looking into retruded chin correction, many people tend to choose a clinic based mainly on cost, asking how much cheaper it is. However, retruded chin correction is a process that demands a considerable level of difficulty and concentration compared with general orthodontic improvement programs. Therefore, if it is taken lightly, you may end up with unsatisfactory results or even need another improvement process.

Accordingly, it is essential to check whether there are medical staff in place who have built strong skills through numerous non-surgical correction cases. You should also check whether jaw correction and orthodontic treatment can be managed in cooperation.

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In addition, the level of completion of non-surgical retruded chin correction is determined by which medical staff carry it out. That is why it is important to check whether the clinic has medical staff with sufficient experience who have continued to study a specific field for many years.

Strong skills must support the process in order for any case to be handled expertly according to each individual’s condition.

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It is also very important how many different cases the medical staff in charge of non-surgical correction have handled. Only when this is backed by a high level of skill and experience gained through direct treatment of many cases can they provide a 1:1 customized process that considers each person’s condition and needs, rather than applying the same plan to everyone.

Starting at an institution that meets these conditions is one way to bring about a more complete change.

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Finally, retruded chin correction should be carried out through a detailed plan rather than being finished unconditionally in a short period of time.

Rather than a place that applies a standardized process to everyone, you should check whether they identify each individual’s condition through precise examination. It is also important whether they provide in-depth counseling based on the previous process and can care for the psychological aspects as well.

If experienced medical staff then establish a customized process suited to the individual and begin treatment, you will be able to see a more satisfying result.

As such, there are quite a few factors to consider in order to carry out more satisfying retruded chin correction. Since it should be completed properly in one attempt, I hope you will check everything carefully and achieve the look you want.

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