V-Line Square Jaw Surgery - The Appropriate Surgical Method According to the Shape of the Chin

Among facial contouring surgeries, regarding the most frequently performed procedures, ‘square jaw surgery and V-line square jaw surgery,’

I will整理 some rather basic information and comfortably explain the questions I have often heard in my clinic.

Among facial contouring surgeries that change the outline of the face, the most commonly performed surgery is ‘square jaw surgery.’

‘Square jaw surgery’ is a procedure that refines the contour of the lower face when the outline looks large and angular.

In general, if the facial contour below the imaginary line connecting the nose and the ear appears angular and developed, the face may look somewhat strong in outline and may appear older than one’s actual age.

Therefore, I.

For those who are considering changing the facial outline, if the middle and lower parts of the face are overall large, I recommend prioritizing reducing the contour of the lower face.

A typical ‘square jaw surgery’

refers to a procedure that refines the more developed-looking lower jaw body area (the lower jaw area extending from the cheek to near the lips), including the angled part of the lower jaw (the gonial angle).

However, if the chin contour looks somewhat wide, long, protruded forward, short, or recessed backward, the chin contour needs to be properly refined for a much better frontal appearance.

A surgery that refines the lower jaw contour, including the chin area, is referred to in a way that is easy for the general public to understand as

‘V-line square jaw surgery.’

By comparing and analyzing in detail what the various methods are for refining the front chin and what advantages and disadvantages they have, I think it is most important to choose the surgery that is appropriate for one’s own chin.

Among the methods for refining the chin area,

various techniques are being applied, such as shaving, T-osteotomy, modified T-osteotomy (angled Y-shaped osteotomy), and, in my opinion, the somewhat forced S-shaped osteotomy, which changes the contour by shaving or cutting the outer edge of the chin area overall.

The following are schematics that explain the various surgical methods in an easy-to-understand way.

This is a T-osteotomy intended to reduce the width of a broad and dull-looking chin area and make it somewhat sharper and more compact.

In the schematic, the rectangular bone in the center is removed, brought together, and fixed.

As a variation of T-osteotomy, the horizontal osteotomy line is modified into a somewhat curved line to reduce the volume of the chin bone converging toward the center. This is a method I commonly use when performing T-osteotomy.

As a variation of T-osteotomy, this is an angled Y-shaped osteotomy designed to make the symmetry of the horizontal osteotomy line easier to achieve.

Although it was designed to reduce the length and width of the chin bone, I think it is a method that can produce somewhat rough results in actual surgery. In terms of simplicity, it is easier and more stable than T-osteotomy or its variations, but I think the actual surgical results may fall short.

A schematic of sandwich osteotomy for reducing chin length when the chin is long.

Generally, this is a modified curved-sandwich osteotomy that is applied in actual surgery.

It is important in clinical practice to analyze the actual surgical results that arise from this theoretical background.

Surgery is not necessarily performed exactly as shown in schematics, because there are many variables.

Below are the actual bone images of people who visited me for revision surgery consultation after undergoing surgery by various methods.

This 3DCT is of a person who underwent cortical bone resection and S-shaped chin osteotomy at a dental clinic to make the lower jaw contour smaller and more compact, but came to me for revision surgery consultation because of the dull-looking front chin contour and an uneven jawline contour with a secondary angle.

This is another person’s 3DCT who underwent a similar procedure and came to me for revision surgery consultation.

After cortical bone resection, the jawline contour appears uneven, and after the S-shaped chin osteotomy, the chin contour appears somewhat dull.

In the chin contour of a person who underwent square jaw surgery along with S-shaped chin osteotomy at a plastic surgery clinic, the chin was not refined into a slim shape, and asymmetry on both sides can be observed.

The 3DCTs above are of a person who wanted V-line square jaw surgery and underwent T-osteotomy of the chin at a plastic surgery clinic.

Below are the pre- and postoperative 3DCT images of people I treated using methods such as shaving and T-osteotomy.

The 3DCTs above are the pre- and postoperative 3DCTs of a person I operated on, showing the condition before surgery and two weeks after surgery, after square jaw surgery along with T-osteotomy of the chin.

When I counsel people with various chin contours in the clinic, I still feel that many doctors who perform contouring surgery often recommend T-osteotomy for the chin without enough consideration.

However, in contouring surgery for cosmetic purposes, I think it is most important to select the appropriate surgical method by taking into account the various facial conditions of each person.

I prefer shaving or the modified Y-osteotomy method, which is an angled Y-shaped osteotomy, to make the chin contour smaller and more refined.

However, depending on the preoperative appearance and position of the chin, the appropriate surgical method must be applied.

“For example, if the chin contour is somewhat asymmetrical, performing T-osteotomy or modified T-osteotomy may worsen the asymmetry.

If the chin is long or appears to protrude forward, it may be difficult to expect good results with T-osteotomy.”