Jaw and Chin Contouring

Who it’s for

Anyone whose face looks wide at the back of the jaw, square at the corners, or long from lip to chin point. It shows up most in a straight-on photo and a strict profile. These are the features that change the outline of a face rather than any single detail in it.

The distinction worth knowing before the consultation is bone against muscle. A jaw can look wide because the angle of the mandible flares, which bone work fixes. Or because the masseter, the chewing muscle sitting over that angle, is bulky. Bone work does not touch muscle bulk. Clenching your jaw in the mirror and feeling the muscle harden under your fingers tells you how much of your width is which.

Who should look elsewhere first. If the upper face is what you notice in photographs, forehead and brow reconstruction does more, and surgeons will usually say so. If a thin, receding chin is the whole complaint, an implant may be all you need.

Hormones are not required. Nicotine has to stop for several weeks either side, since the gum incisions heal badly on it, and surgeons will want dental problems dealt with first. A scan of the jaw, showing the nerve channel, is not optional here.

Before your consultation

Clench your teeth hard in front of a mirror and watch the corners of your jaw. If a pad of muscle bulges when you clench and settles when you relax, part of your width is muscle. Knowing that before you sit down changes what you ask for.

How it’s done

It starts with imaging and a set of measurements. The surgeon looks at where the nerve channel runs through the jaw and how thick the bone is around it. That decides what can come off and what cannot. That is the plan, and you are entitled to see it drawn.

Jaw work has two parts that are often confused. Angle reduction, sometimes called ramus reduction, takes the flared corner of the jaw off with a saw. Body shaving then thins the outer surface of the bone forward along the jawline with a burr, blending the new angle into the front of the jaw rather than leaving a step where the saw stopped. Do the first without the second and the face can still look boxy from the front. So most surgeons do both.

The chin is the other half. A genioplasty cuts across the chin bone and moves the freed piece. Backwards to shorten it, upwards to reduce height, narrowed by taking a wedge from the middle, or forwards when the chin is receding. The bone is fixed in its new position with small plates and screws.

An implant does something different. It sits on the front of the existing bone and adds projection without removing anything. So it suits a weak chin and does nothing for a long or square one.

Almost all of this is done through the mouth, through incisions inside the lower lip and along the gum behind the back teeth. No cut on the outside of the face. The one common exception is a surgeon who prefers a small incision under the chin for an implant, which is worth asking about rather than assuming.

At the consultation

Ask to see your own scan on the screen with the nerve channel pointed out, and ask where the cuts will sit relative to it. That is the conversation that explains why the plan stops where it does, and it takes a couple of minutes.

Jaw and chin surgery recovery

The first week is dominated by your mouth, not your jaw. The incisions are inside the lip and gum. Talking is awkward, brushing is careful work, and you will be on liquids and then soft food while they heal. Most people are surprised how little sharp pain there is and how tiring the rest of it feels.

Swelling here behaves differently from the upper face. The lower third swells low and heavy, and the jawline disappears entirely for a week or so. Some people are put in a supportive strap or elastic wrap to control it. Bruising drifts down into the neck under gravity.

Chewing is what takes longest. The masseter has been lifted off the bone or worked around, and it protests for weeks. People manage soft food easily by the second or third week and a normal steak much later. The shape underneath stays hidden for a while. Month one is when people privately decide the operation did not work, which is the part worth preparing for.

The week before

Fill the fridge with food you can eat without chewing and without a straw, and find a soft toothbrush. Your mouth is where the incisions are, so the first fortnight goes much better when nothing on the shelf needs biting.

Jaw and chin surgery scars

Nothing visible on the face. The access is inside the mouth, through the lower lip and the gum behind the molars, and those incisions heal into the lining where nobody sees them. That is a real advantage of this operation and one reason it travels well in photographs.

Inside the mouth it is less tidy for a while. The incision lines feel ridged with your tongue for a month or two, and they soften. Occasionally a small band of tight tissue stays where the lip was lifted, which you can feel and cannot see.

If an implant goes in through a small cut under the chin, that one is external. A centimetre or so in the shadow below the jaw, fading to a pale line. Ask which route your surgeon uses before you assume there is no scar at all.

Sensation after jaw and chin surgery

The mental nerve supplies feeling to the lower lip and the skin of the chin, and it exits the bone exactly where the chin gets cut. It is stretched and moved out of the way during a genioplasty. Shaving the jaw works over the channel the same nerve runs in further back. So numbness after this operation is expected rather than unlucky.

For the first weeks the lower lip and chin feel like the end of a dental injection that never quite wore off. Drinking from a glass takes attention, and food on the chin goes unnoticed. Feeling comes back gradually over weeks to months, often with a phase of tingling, itching or small electric jolts that means the nerve is recovering.

Most people get most of it back. A minority are left with a patch of the lip or chin that stays dull, and a very few with a permanent numb area. I would go in expecting several months of it and treat anything faster as a bonus.

Risks and complications

Early on, the risks are those of cutting bone through the inside of the mouth. Bleeding, infection, a gum incision that breaks down, all uncommon. A collection of blood along the jaw can need draining. Infection around a plate or an implant is rarer still, but when it happens the hardware usually has to come out.

Then the shape problems. Asymmetry, because the two sides of a jaw are never identical to start with. A visible step where shaving stopped and untouched bone begins. Soft tissue that does not shrink to the smaller bone underneath, which shows as slackness along the jawline and is more likely on older or looser skin.

The risk specific to this operation comes from pushing against the anatomy rather than respecting it. Taking too much from the angle can weaken the jaw, and fracture of a thinned mandible, though rare, is the reason surgeons stop where they stop. Going too deep on the inner surface risks the nerve permanently instead of temporarily. A surgeon planning from measurements will tell you what they are leaving behind and why.

Jaw and chin surgery results

The change is in the outline. From the front a narrower jaw shortens and softens the lower face, and from the side a reshaped chin changes where the profile ends. Together they do more than either alone. That is why they are sold as a pair, and why a quote for one is not a quote for the face you were shown.

What tends to disappoint is muscle and skin rather than bone. A jaw narrowed at the bone with a heavy masseter still over it looks better but not as narrow as the plan suggested. Slack tissue over newly reduced bone can read as a softer but less defined jawline, which is not what most people had in mind.

Alternatives to jaw and chin surgery

There is nothing that removes bone except removing bone. Fillers and fat can build a chin forward, or fake a sharper jawline by adding volume around it. For a weak chin that is a genuine option. It does nothing for a wide angle or a long chin, because those need less, not more.

The useful non-bone option is muscle. If a scan says your bone is unremarkable and your width is masseter bulk, muscle-relaxing injections thin that muscle over a few months and can be repeated. Some surgeons use them as a trial before anyone commits to bone work, which I think is a sensible way round.

Between an implant and a genioplasty, the honest split is direction. An implant adds projection to a small chin and is quicker and cheaper. A genioplasty moves your own bone and is the only option if the chin needs to get shorter, narrower or to go backwards. And where the bone plan is limited by the nerve, an implant or filler on top is sometimes how the last bit of the shape gets found.

Combining jaw and chin surgery with other surgery

This is normally one item on a longer list rather than a standalone trip. Forehead and brow reconstruction is usually first in the plan, and the upper third is done first in the day. The jaw and chin follow it. Work on the thyroid cartilage in the neck sits naturally alongside, since the surgeon is already working in the lower third.

Sequencing inside the day is the surgeon's problem. The total is yours. A long list means a long anaesthetic, and adding the lower third to a full upper third makes for a heavy operating day. What a longer list does to the bill and to the operating day is set out on the facial feminisation hub.

Jaw and chin surgery cost

The thing to ask for is the split. Jaw angle reduction, body shaving along the jawline, and chin work are three items, and quotes bundle them in different combinations. A cheap jaw quote is often the angle alone, which is the part most likely to leave a step if the shaving is skipped.

Chin pricing follows the method. An implant is usually the cheaper line and a genioplasty the dearer one, since it takes longer and uses hardware. Ask whether the scan, the overnight stay and the plates are in the price or arrive separately. And ask who pays if a small asymmetry turns out to want smoothing once everything has settled.

Choosing a jaw and chin surgery surgeon

The two numbers I would ask for are how many mandible contouring cases they do in a year, and how many of those shave forward along the jawline rather than taking the angle alone. It is the second number that separates people. Jaw bone work is also done by maxillofacial surgeons outside gender care, so a high figure is easier to come by here than in some of the other FFS procedures.

More telling than either number is how they decide how much bone to remove, and what stops them. A surgeon who does this often answers with the nerve and the scan, and will show you both. One who answers with how much you want is describing a preference where anatomy makes the decision.

Photographs come last, and only the right ones. Straight-on views at a year for the width, strict profiles for the chin, both in the same light. Then follow the jawline forward from the angle with your eye, looking for a smooth run rather than a corner where the shaving stopped. If your own skin is not tight, find the older patients in the gallery.

The day after a consultation

Write down, from memory, what the surgeon said would stop them taking more bone. If you cannot repeat the reason back a day later, you were given a reassurance rather than a plan, and that is worth noticing before anyone takes a deposit.

Frequently asked questions

Will my lip and chin be numb afterwards?

Yes, for weeks to months, because the nerve supplying them sits where the bone is cut. Most feeling returns within a year. See sensation.

Will I have a scar on my face?

Not usually. The incisions are inside the mouth. Some surgeons place a chin implant through a small cut under the jaw instead. See scars.

Implant or genioplasty for the chin?

An implant adds projection to a small chin. A genioplasty moves your own bone and is the only option if the chin needs to be shorter or narrower. See alternatives.

How soon can I eat normally?

Soft food from the first week or so, most things by six weeks, and full chewing strength a few months out. See recovery.