Before & After · Gangnam, Seoul

Square Jaw Reduction Before and After in Korea

Square jaw reduction reshapes a wide mandible angle for a slimmer lower face and a smoother jawline. These before and after photos show square jaw reduction results by Dr. Sang-Baek Han in Seoul.

Medically reviewed by Dr. Sang-Baek Han, M.D., Ph.D. — Seoul National University graduate, Korean board-certified plastic surgeon · Last reviewed October 2026

Patient results

Square Jaw Reduction before and after photos

Square jaw reduction before and after jawline, Seoul
Square jaw reduction — before and after, jawline
Square jaw reduction with ASO and chin surgery before and after, Korea
ASO + chin surgery + square jaw reduction — before and after, 3 months
Mandible angle reduction before and after, Seoul Cheil Plastic Surgery
Square jaw (mandible angle) reduction — before and after
Square jaw surgery before and after jaw angle, Korea
Square jaw reduction — before and after, jaw angle
Square jaw reduction before and after side view, Seoul
Square jaw reduction — before and after, side view
Protruding mouth and square jaw surgery before and after, Korea
ASO + square jaw reduction — before and after

Photos are of real patients treated at Seoul Cheil Plastic Surgery and are shown with their consent. Individual results vary; a consultation is needed to confirm suitability. All surgery carries risk.

What changes

What patients typically see after square jaw surgery

  • A slimmer lower face from the front
  • A smoother, more tapered jawline
  • Softer jaw angles in profile

Who it suits

Who is a candidate?

  • A wide or angular lower jaw caused by bone shape
  • Patients who want a slimmer face shape
Dr. Sang-Baek Han, Seoul National University graduate and Korean board-certified plastic surgeon

Surgeon for every case on this page

Dr. Sang-Baek Han, M.D., Ph.D.

Seoul National University graduate (M.D., master's and Ph.D.), trained in plastic surgery at Seoul National University Hospital, and a Korean board-certified plastic surgeon since 1999. He personally performs every operation at Seoul Cheil Plastic Surgery.

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FAQ

Square Jaw Reduction — frequently asked questions

Does square jaw surgery leave a scar?

It is typically performed through incisions inside the mouth, so there is no visible external scar.

Can it be combined with chin surgery?

Yes. Combining it with chin surgery is the basis of V-line surgery.

Is the result permanent?

Bone reshaping is permanent once healed.

Related results

← All before & after results

Get a free photo assessment

Send front and side photos. Dr. Han's team will tell you whether square jaw surgery suits you and how to plan your trip to Seoul.