Double jaw surgery in Korea: what it does for an overbite, a recessed or lantern jaw, and the recovery time week by week
Written by KCODI medical interpreter team · English deskUpdated · 10 min read
Double jaw surgery cuts and repositions both the upper and the lower jaw. Surgeons call it orthognathic surgery, and it sits with maxillofacial work rather than with cosmetic procedures, because it changes how your teeth meet as well as how your face looks.
People fly into Seoul for it with a two-week trip booked. Our interpreters have had that conversation in the consultation room more times than any other, and it does not go well: two weeks covers the hospital stay and the first swelling, and nothing else.
This guide is the honest calendar. What the operation does, what the first six weeks feel like, when the swelling actually goes, and when it is the wrong operation for your face.
What double jaw surgery does
The surgeon cuts the upper jaw above the teeth and the lower jaw behind the molars, moves both into a planned position and fixes them with titanium plates and screws. Everything is done through incisions inside the mouth, so there is no scar on the face.
- Overbite or an overjet. The lower jaw sits too far back, so the chin looks weak and the upper teeth protrude. The lower jaw is brought forward.
- Underbite. The lower jaw sits ahead of the upper. The lower jaw is set back, sometimes with the upper jaw brought forward.
- A crooked jaw or facial asymmetry. One side has grown differently. The jaws are levelled, which is the hardest planning problem of the three.
- A long face with a gummy smile. The upper jaw is moved upward, which shortens the middle of the face and reduces gum show.
Triple jaw surgery is the same operation plus a genioplasty, where the chin bone is cut and moved as a third piece. Jaw shave, or mandible angle reduction, is different again: it narrows the jaw angle for appearance and does not change the bite. Those bone contouring options are covered in zygoma reduction and genioplasty and the Korean jawline guide.
The recovery timeline, week by week
| When | What it is like | What you can eat |
|---|---|---|
| Day 0–2 | In hospital. Heavy swelling starts, mouth held in position with elastics, nose blocked | Liquids through a syringe or cup |
| Day 3–5 | Swelling peaks. Face feels tight and numb. Discharge from hospital around here | Liquids only |
| Week 1–2 | Swelling begins to fall. Speech is thick. Stitches inside the mouth dissolve or come out | Liquids, then thin purées |
| Week 3–4 | You look swollen but recognisable. Elastics adjusted. Most people could fly | Soft purées, soft eggs |
| Week 6 | Bone union is reliable enough for normal chewing to start gradually | Soft solids |
| Month 3 | Most visible swelling gone. Numbness in the lower lip and chin improving | Normal, carefully |
| Month 6–12 | Final shape settles. Any lasting numbness is judged at this point | Normal |
The number that surprises people most is not day 3. It is month 3. Jaw surgery swelling behaves differently from nose or eyelid swelling: it comes down in a rush during the first month, then sits on a slow tail for months. Judging your face at week four is judging a swollen face.
Braces, and why the surgery is only part of it
Classic orthognathic treatment puts braces on for six to eighteen months before surgery, to line the teeth up so the jaws can meet in the new position, then keeps them on for several months afterwards. Some Korean clinics offer surgery-first protocols that reverse the order, with braces mainly after the operation.
Either way, this is not a single trip. Anyone planning jaw surgery from abroad needs an orthodontist at home who agrees to run the braces phase, and who will talk to the Korean surgeon. Ask about it at the first consultation, not at discharge. Options for the braces phase are on the orthodontics page.
Risks worth hearing in full
- Numbness of the lower lip and chin. Very common in the first months because the nerve runs through the operated bone. It usually recovers over six to twelve months, and in a minority of people some numbness is permanent.
- Bite changes. The bite can shift as swelling settles, which is why the elastics and the orthodontist matter as much as the surgery.
- Relapse. Bone can move slightly back toward its old position, more so with large movements.
- Joint symptoms. Some people develop or lose jaw joint noise and discomfort. Existing TMJ problems should be assessed before, not after. Formal tmj surgery is a different operation with a different specialist.
- General surgical risks. Bleeding, infection, plate problems that occasionally need removal, and the risks of general anesthesia.
Ask to see the simulation and the CT-based plan, not just a photo gallery. Upper jaw surgery before and after and lower jaw surgery before and after pictures are easy to select; a plan drawn on your own scan is not. What to look for in any photo pair is in reading before and after photos.
When it is the wrong operation
Jaw misalignment that shows only in photographs, with a bite that works fine, is usually better addressed with contouring or with a chin procedure. A recessed chin without a bite problem can often be corrected with a genioplasty or an implant alone, which is a week in Seoul instead of a month.
A wide lower face that is mostly chewing muscle is not a jaw surgery case at all. It responds to injections, and the way to tell is in botox before and after by area. The estimated range, stay length and visit count for bone work are on the facial contouring page.
If jaw alignment genuinely is the issue, plan the trip around the surgeon's answer rather than your flight. Four weeks in Seoul with a booked recovery stay near the clinic, an interpreter for the post-operative visits, and a home orthodontist already briefed is what a workable plan looks like. To start, answer four questions in clinic matching.
