Square Jaw

Singaporeans can have square jaws that detract from their ideal look. The good news is that Gentle Smile Dental Studio can help you create pleasant contours on your face.

What makes an ideal jawline?

A square jaw generally refers to the lower jaw bone jutting out on the side.

Those who are born with a strong jawline, naturally have a shorter face length, and square chin and could require masseter reduction surgery.

While some individuals are confident of their strong facial structure, some individuals, especially women, with square jaw may dislike it, and can’t wait to get rid of the excess bone jutting out (the angle between the chin and the neck that causes noticeable facial discordance of the female face, which is associated with masculine facial appearance).

ideal jawline and square jaws

Three Causes Of Square Jawline?


Asian men and women tend to have more square-shaped jaws

Diet and habits

Eating hard or chewy foods will cause jaw muscle growth

Overnight tendencies

You might be clenching or grinding at night, causing your jaw muscles to grow.

​Square Jaw to V-Shape Treatment

Square jaw reduction reduces the width of the lower part of the face, especially if it is caused by the lower jaw bone and the surrounding masseter muscle.

The masseter muscle is a strong and thick rectangular-shaped muscle (performing the primary function of chewing) that wraps around the side of the lower jaw and causes a powerful elevation or contraction of the lower jaw.

masseter muscles infographic

Square Jaw Reduction Process

You can’t totally fight genetics, but you can improve the appearance of your jawline through surgical or non-surgical procedures.

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Surgical treatment will involve removing the excess bone and/or muscles.

They include:

  • Jaw surgery
  • Masseter reduction
  • Chin shaving surgery


Non-surgical treatments to reduce a square jaw include:

  • Braces or clear aligners
  • BTX/ BTX
  • Nightguard

Cost and Timelines

BTX for square jaw reduction will be from $300-$500 (before GST) depending on the dosage required.

Repeated treatments may be required for non-surgical treatment as the results typically last 3-6 months. Our dentist will make a clinical assessment and customise the most appropriate procedure for you depending on your needs.

gentle smile dental studio dentists hygienist

Frequently Asked Questions

Are square jaws attractive?

Square jaws are seen as a masculine trait and is seen as attractive on men. However, female beauty prefers a V-shaped jawline.

What causes a square jaw?

Genetics, what you eat and overnight teeth grinding and clenching can cause your jaw muscles to grow, causing a square jaw.

How to make square jaw less prominent?

Our dentists can advise the best surgical or non-surgical method based on your situation. Surgical methods include jaw surgery, while non-surgical methods include BTX, Invisalign and nightguards.

Can I reduce my square jaw without surgery?

Yes. It’s possible to use non-surgical methods such as BTX, Invisalign and nightguards.

How long does square jaw reduction take?

It varies depending on the course of action required. For example, BTX is a process that needs topping-up at specific intervals, while jaw surgery requires consultation and surgery.

How much does jaw surgery in Singapore cost?

Jaw surgery has to be quoted on a case-by-case basis.

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