
A weak chin refers to a face in which the lower jaw is small or set back, making the boundary between the face and neck unclear.
In such cases, the face may appear flat, or the mouth may look relatively protruded.
In particular, in a side profile with a weak chin, the jawline and chin-tip line can look blurred, and the mouth is often emphasized forward, affecting the balance of the entire face.
Because these structural characteristics affect not only the jawline but also the image and impression a face gives, interest in improving both the side profile and facial proportions through weak chin surgery has been steadily increasing recently.
The causes and forms of a weak chin vary from person to person.
In some cases, the chin bone itself is short, and in many cases it appears together with protruding mouth structure, creating the impression that the mouth sticks out further forward.
When a weak chin and protruding mouth occur together, the protrusion of the mouth can become even more noticeable in the side profile, so a precise approach is needed to improve facial balance.
Accordingly, weak chin surgery should not simply be about moving the chin forward, but should comprehensively consider the facial skeletal structure, soft tissue,
the balance around the mouth, and even changes in the side profile.
Based on these characteristics, after closely analyzing an individual's facial shape and chin-tip structure, weak chin surgery is being performed with customized correction tailored to the degree of the chin deformity.
Weak chin surgery is broadly divided into chin advancement surgery and weak chin implant insertion surgery, and the appropriate method is selected by comprehensively considering the patient's skeletal structure, whether protruding mouth structure is present,
and the need to improve the side profile.
Chin advancement surgery is an effective correction method when the degree of weakness is severe, and it involves osteotomy of the bone followed by advancement to adjust its position.
By applying different osteotomy angles for each individual, the length, width, and degree of protrusion of the chin can be adjusted in a customized way,
making it possible to improve both a short chin and a weak chin at the same time.
In addition, as the chin bone moves forward, the position of the neck muscles is also corrected, which can create a more natural and smooth jawline and a clearer side profile,
while also helping to soften the impression of a mouth that used to look overly forward due to protruding mouth structure.
On the other hand, weak chin implant insertion is a correction method used when the degree of weakness is relatively mild.
Without cutting the bone, an implant is inserted through an incision inside the mouth to supplement chin-tip volume.
As a relatively simple chin procedure, it can naturally improve a weak chin, and during the implant insertion process, the position of the neck muscles is also corrected, forming a smooth jawline and improving the side profile.
In this way, weak chin surgery requires a customized corrective approach that takes into account facial proportions and harmony according to the degree of weakness and facial structure.
For such customized weak chin surgery, a surgical plan is established after precisely checking the chin-tip position, the advancement range, and whether left-right asymmetry is present based on 3D-CT analysis.
Through this, the postoperative changes in facial proportions and the degree of improvement in the weak chin side profile are predicted,
and the surgery is then performed while also considering changes in the position and volume of the soft tissue so that the jawline does not appear unnatural afterward.
In weak chin surgery, even a slight change in the chin-tip position can greatly alter the facial impression. The surgeon's judgment and experience have an important effect on the outcome.
If individual skeletal differences, soft tissue thickness, and whether protruding mouth structure is present are not comprehensively considered, the result may appear artificial, so detailed design at the preoperative planning stage determines the naturalness of facial balance and satisfaction with side-profile improvement.
Dr. Jo Dongpil, director of AB Plastic Surgery, explained, "Weak chin surgery is not a procedure that corrects only the chin,
but one that must design the overall facial proportions and impression together." He added, "Based on precise 3D-CT diagnosis and the know-how of medical staff with extensive experience in facial contouring surgery, we are performing customized weak chin surgery tailored to each individual's facial shape and degree of weakness."
He continued, "Because even a small change in the chin tip can have a large impact on the facial impression,
it is important to determine the surgical method and direction that are appropriate for you through sufficient consultation."
Source: https://www.medisobizanews.com/news/articleView.html?idxno=135294