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Procedure guide · Face
Jawline ContouringJawline contouring is the group of procedures that change the outline of the lower face, either by adding definition with jaw angle and chin implants, or by reducing a wide or square jaw by shaving the bone or relaxing the masseter muscle. Removing fat under the chin is often part of it. Surgical options take 60 to 180 minutes under general anaesthesia, swelling settles over 4 to 6 weeks, and the final contour appears at 3 to 6 months.
The jawline is the outline that separates the face from the neck, and it is read as a single continuous line running from one ear, along the lower border of the jaw, around the chin and back again. That is why it is so difficult to improve by treating one point in isolation, and why jawline contouring is best understood as work on an outline rather than as an operation on a feature. A sharply defined jaw depends on four separate things: the shape and width of the bone, the bulk of the masseter muscle at the angle, the amount of fat lying over and beneath the jaw, and the tone of the skin draping across all of it. A poor outline can come from any one of these, and the treatments for each have almost nothing in common.
This is where most disappointment in jawline contouring originates. A patient who wants a sharper jaw may need fat removed, or an implant added, or a muscle relaxed, or bone taken away, or skin lifted, and those five interventions range from a 10 minute injection to major maxillofacial surgery. Being offered the clinic’s preferred procedure rather than the one your anatomy calls for is the commonest way to spend a great deal of money on a small change.
Start with the distinction that matters most, which is between width and definition. Some patients want a jaw that is narrower, usually because the lower face is square and wide. Others want a jaw that is more defined, usually because the outline is soft and blends into the neck. These are opposite problems. Narrowing a wide jaw means reducing something: bone at the angle, or the masseter muscle, or both. Defining a soft jaw means adding or revealing something: implants at the angle and chin, or removing the fat that is obscuring an outline that already exists.
For width, the first question is whether the cause is muscle or bone, and it is answered by touch rather than by imaging. Clench your teeth firmly and feel just above the jaw angle. If a firm bulge swells and subsides as you clench and relax, a significant part of the width is the masseter muscle, and botulinum toxin injected into it will reduce the bulk over 6 to 8 weeks, narrowing the lower face without surgery. If the width is unchanged whether you clench or not, and what you feel is a hard fixed edge, the cause is bone. Many people are a combination, which is why experienced surgeons often treat the muscle first and reassess 2 months later, when what remains is a far clearer picture of what surgery would actually need to achieve.
Bone reduction, marketed in many clinics as V-line surgery, is the answer where the width is genuinely skeletal. It involves removing bone from the angle and lower border of the jaw, sometimes narrowing the chin at the same time, to produce a tapered outline. It is effective and it is permanent, and it should be approached as major maxillofacial surgery rather than as a cosmetic refinement. The inferior alveolar nerve runs inside the jawbone and supplies sensation to the lower lip; the vessels behind the jaw angle can bleed significantly; and bone that has been removed cannot be replaced, so over-reduction leaves the soft tissue of the lower face poorly supported, which reads as premature ageing rather than as refinement.
For definition, the approach is usually additive. Jaw angle implants, placed through the mouth and normally fixed to bone with screws, widen and square an angle that tapers too sharply, and they are almost always combined with a chin implant or a genioplasty so the whole outline is treated rather than one end of it. Custom implants designed from a CT scan are increasingly used here, because the jaw is a long curved surface on which an approximate fit is easier to feel and to see than it would be on the cheek. Where the underlying bone is fine and the outline is simply buried, liposuction under the chin and along the jaw reveals it directly, often through the same small incision used for a chin implant.
Skin is the limiting factor that is most often ignored, and it determines whether any of this will work. Liposuction under the chin depends entirely on the skin retracting afterwards; in a patient whose skin has lost its elasticity, removing the fat that was filling it out makes the area worse, not better. The same patient needs a neck lift, which repositions and removes skin, rather than jawline contouring. A surgeon who pinches the skin under your chin and tells you honestly that liposuction alone will disappoint you is worth listening to, even though they are recommending a larger operation.
There is one situation in which none of these procedures is the right answer, and it is worth naming clearly. If your jaw looks wrong because the upper and lower jaws are mismatched, and your teeth do not meet correctly, then the problem is the position of the jaws rather than their outline. The treatment is orthognathic surgery with orthodontic preparation, which moves the jaws and corrects the bite. Contouring the outside of a jaw that is in the wrong place improves the silhouette a little and leaves the underlying discrepancy untouched. Any assessment for jawline contouring that does not include looking at how your teeth meet is incomplete.
Finally, a note on sequence for anyone considering several of these. The sensible order is usually to address muscle bulk first with an injection, because it is reversible and informative; then fat, because removing it reveals what the bone is actually doing; then structure, whether by implant or by reduction, once the surgeon can see the true outline. Patients who go straight to bone surgery without that sequence sometimes discover afterwards that a far smaller intervention would have achieved what they wanted.
Surgeons look for these points at the consultation.
Jawline contouring suits adults whose lower face outline genuinely does not match the rest of their face, whether through a weak or receding jaw, a wide or square one, or fullness beneath it, who have healthy teeth and gums, whose facial growth is complete, and who understand that the right procedure depends on whether the cause is bone, muscle, fat or skin.
Reasons a good surgeon will ask you to wait or choose something else.
Jawline contouring is avoided where a bite problem requires orthodontic or jaw surgery first, in active dental or gum infection, in uncontrolled diabetes or immunosuppression, in smokers who will not stop, in patients on bisphosphonates, and where loose skin rather than the jaw itself is the real cause of a poor outline.
Ask your surgeon which technique they recommend for you and why.
Shaped implants are placed over the angle of the jaw through incisions inside the mouth, widening and squaring a jaw that tapers too sharply. Usually combined with a chin implant or genioplasty so the whole outline is treated.
Bone is removed from the angle and lower border of the jaw to narrow a wide or square lower face. This is the core of what is marketed as V-line surgery and is a major operation.
Injections into the masseter muscle at the jaw angle shrink it over 6 to 8 weeks, narrowing a square jaw caused by muscle bulk rather than by bone. Repeated every 4 to 6 months at first.
Fat is removed from under the chin and along the jaw through a small incision in the submental crease, revealing a jaw outline that was present but hidden.
Step by step, from arrival to discharge.
Before any jawline contouring the surgeon feels the masseter while you clench, pinches the skin to test elasticity, assesses the fat under the chin, and checks how your teeth meet. Each finding points to a different procedure.
A CT scan is used where bone will be reduced or implants placed, so the plan is measured rather than judged by eye and the position of the nerve inside the jaw is known.
Masseter injections need none. Submental liposuction can be done under local anaesthesia with sedation. Implants and bone reduction are done under general anaesthesia, with bone work in a hospital setting.
Jaw angle implants and bone reduction are performed through incisions inside the mouth. Liposuction and chin implants use a small incision in the crease under the chin.
Implants are positioned along the jaw and fixed to bone with screws; bone reduction removes the angle and lower border in planned increments with the nerve protected throughout.
Wounds are closed with dissolving sutures and a compression garment or supportive dressing is applied to control swelling and hold the soft tissue against the new outline.
Frequencies follow published guidance; your personal risk depends on your health and the surgeon.
Jawline contouring covers procedures with very different risk profiles, and treating them as one is the main way patients get into trouble. Botulinum toxin to the masseter and liposuction under the chin are low-risk, largely reversible interventions. Jaw angle implants carry a genuine infection risk because they go in through the mouth. Mandibular angle reduction is major maxillofacial surgery with a real risk of nerve injury and significant bleeding, and it is irreversible.
The decision that matters most is therefore not which surgeon but which operation, and it depends entirely on what is causing the shape you dislike. A wide lower face caused by a bulky masseter muscle is treated with an injection; the same appearance caused by bone requires an operation that removes part of the jaw. Getting this wrong means either an ineffective treatment or a major operation that was never needed. Any assessment that does not include feeling the muscle while you clench, and ideally imaging of the bone, is not an assessment.
The lower face swells substantially after jawline contouring, particularly after bone work, and takes 4 to 6 weeks to settle enough to judge the outline.
The mental and inferior alveolar nerves run through the jaw and are at risk in any bone procedure. Numbness usually recovers over 3 to 6 months.
Swelling and muscle irritation limit jaw opening for 2 to 4 weeks after intraoral jawline contouring. Gentle exercises restore normal opening.
The two sides of a jaw are never identical, and bone removal or implant placement can exaggerate a difference. Planning from a CT scan reduces it substantially.
The marginal mandibular branch of the facial nerve runs along the jaw and controls the lower lip. Stretching it causes an uneven smile that usually recovers within 3 months.
Jaw angle implants are placed through the mouth, so infection risk is higher than for implants placed through skin. An infected implant is usually removed and replaced later.
The vessels behind the jaw angle can be injured during mandibular angle reduction, which is why this operation belongs in a hospital with a maxillofacial team rather than in a day-case clinic.
Recovery from jawline contouring depends entirely on which procedure was done, and quoting a single figure would be misleading. Masseter injections have no recovery at all. Submental liposuction means a compression garment for a week and bruising for two. Jaw angle implants mean a week of soft food and mouth rinses. Mandibular angle reduction is a major operation with 2 weeks off work and 6 to 8 weeks before the bone is solid.
What the surgical options share is a long tail. The lower face holds swelling stubbornly, and the jaw outline you see at 6 weeks is not the one you will have at 6 months. Patients who judge the result early are almost always looking at swelling, and surgeons will decline to discuss revision before the 6 month point for that reason.
Days 1-3
The lower face is markedly swollen and the jaw is stiff. Liquid or very soft food, antiseptic mouth rinses after everything, head elevated, cold compresses for the first 48 hours. A compression garment is often worn.
Days 4-7
Mouth opening improves slowly and speech becomes easier. The surgeon checks the intraoral wounds. Flying is generally cleared at around day 7 after bone work.
Weeks 2-4
Most visible swelling resolves and office work resumes. The jaw feels hard and tight, chewing remains limited to soft food, and numbness of the lip is recovering in patches.
Weeks 6-8
Normal diet and full exercise resume once the surgeon confirms the bone has healed. The outline of the jaw is now broadly visible but not final.
Months 3-6
Deep swelling resolves, the soft tissue settles onto the new bone or implant, and lip sensation returns in most patients. Jawline contouring should be judged at this point and not before.
Successful jawline contouring produces a lower face whose outline is continuous and clearly separated from the neck. Front on, the change is in width and taper; in profile and in three-quarter view, which is how most photographs are taken, the change is in definition along the border of the jaw. Patients often describe photographs of themselves as finally looking the way they expected to look.
The lower face is the slowest part of the face to settle, and this catches people out. Swelling remains obvious for 4 to 6 weeks and deep swelling persists for months, so the outline at 6 weeks is soft and full compared with the final one. Jawline contouring should be judged at 6 months, and surgeons will normally decline to discuss revision before then.
Longevity depends on what was done. Bone removal and implants are permanent and do not change. Botulinum toxin lasts 4 to 6 months at first, with intervals usually lengthening as the muscle stays smaller with repeated treatment. Fat removed by liposuction does not return, though the remaining cells enlarge with significant weight gain.
Ageing continues regardless. The skin and soft tissue over the jaw descend with time, so a sharp outline created at 35 softens by 55 whatever was done to the bone beneath it. This is not a failure of the surgery; it is the reason a neck lift rather than more contouring is the right answer for the same patient 20 years later.
Jawline contouring covers a price range wider than almost any other facial treatment, because the procedures inside it are so different. Masseter injections are priced per session in a clinic appointment. Submental liposuction is a short day-case procedure. Jaw angle implants are surgery plus the cost of the devices. Mandibular angle reduction is major maxillofacial surgery in a hospital with a correspondingly larger fee.
Because of that spread, a quoted price for jawline contouring means nothing until you know which procedure it refers to. Ask any clinic to itemise exactly what is included, and be wary of a single headline figure for something described only as jaw contouring.
Combining changes the arithmetic substantially. Jaw angle implants, a chin implant and submental liposuction performed together share one anaesthetic and one theatre booking, so the combined price is far below the sum of three separate operations. For anyone travelling, it also means one trip rather than three.
Why quotes for the same procedure differ, so you can compare packages fairly.
Options to weigh before deciding, surgical and non-surgical.
Narrows a jaw that is wide because of muscle bulk, with no surgery and no recovery, and reverses itself if you dislike it.
Adds definition along the jaw and chin for 12 to 18 months, and is a reliable and inexpensive way to preview what implants would do.
Where loose skin rather than the jaw itself is blurring the outline, repositioning and removing skin treats the cause that contouring cannot.
Where the jaws are mismatched and the teeth do not meet correctly, moving the jaws corrects both the bite and the outline. Contouring alone would leave the underlying problem untreated.
Ask the same questions at every consultation so you can compare answers.
Before any jawline contouring, clench your teeth and feel the area just in front of the earlobe and above the jaw angle. If a firm bulge appears and disappears as you clench and relax, the width is largely muscular, and relaxing the masseter with botulinum toxin will narrow it over 6 to 8 weeks. If the width is there whether you clench or not, and the edge you feel is hard and unchanging, it is bone.
Most people are a mixture, which is why a proper assessment matters. Surgeons who treat a lot of jaws will often start with masseter injections even when bone is clearly involved, because the muscle component resolves in 2 months and what remains is then a much clearer picture of what surgery would need to do.
V-line surgery is a marketing term for one specific version of jawline contouring: narrowing a wide lower face by removing bone from the jaw angles and often narrowing the chin as well, to produce a tapered outline. It is a real operation, but it is major maxillofacial surgery rather than a cosmetic refinement, and it is irreversible.
It is also only one of several possible answers. A patient who wants a more defined jaw usually wants definition added, not bone removed, and for them implants or fat removal are the right procedures. Treat any clinic that recommends bone reduction without examining whether the width is muscular, and without imaging, as a reason to get a second opinion.
Non-surgical jawline contouring works partly, and for some patients entirely. Botulinum toxin narrows a jaw that is wide because of masseter bulk. Dermal filler along the jaw and at the chin can add definition to a soft outline, lasting 12 to 18 months. Fat-dissolving injections under the chin reduce a modest submental fat pad over several sessions. None of these changes bone, and none produces the degree of change that implants or bone surgery do.
The sensible way to use them is as a test. Filler along the jaw shows you roughly what implants would do, for a fraction of the cost and with none of the permanence, and a good number of patients decide after that they are satisfied without an operation.
Only if fat removal is part of the plan. Fullness under the chin is caused by fat, by loose skin, by a weak chin that fails to support the tissue, or by a combination. Jaw angle implants do nothing for it. Submental liposuction removes the fat directly and is often combined with a chin implant through the same small incision, which both removes the fullness and tightens what remains.
Where the skin is loose rather than the area fat, liposuction alone makes it worse by removing the volume that was filling the skin out. That is the situation in which a neck lift, rather than jawline contouring, is the honest recommendation.
Recovery from jawline contouring depends on what was done. After masseter injections you can fly the same day. After submental liposuction, 3 to 4 days. After jaw angle implants, 5 to 7 days, so the intraoral wounds can be checked. After mandibular angle reduction, 7 to 10 days, because it is major bone surgery with a meaningful early bleeding risk.
Take soft food and mouth rinse for the journey after any intraoral procedure, keep your head elevated during the flight, and expect the lower face to swell temporarily in the cabin.
Jaw angle reduction, the most extensive form of jawline contouring, is performed routinely and safely in units that do it often, but it is major maxillofacial surgery rather than a cosmetic procedure, and the risks are of a different order from those of an implant. The inferior alveolar nerve runs inside the jawbone and supplies sensation to the lower lip; the vessels behind the jaw angle can bleed significantly; and removing too much bone leaves the soft tissue of the lower face unsupported, which ages it.
If you are considering it, choose a hospital with a maxillofacial team rather than a day-case cosmetic clinic, ask for planning from a CT scan, and ask directly how many of these operations the surgeon performs each year. Asking what they would do if you bled during surgery is not an impolite question.
Yes, and it is usually the better plan. The jawline is a continuous outline from one angle to the chin and back again, and treating only one part of it frequently makes the untreated part more obvious. Surgeons who do a lot of jawline contouring routinely combine jaw angle implants with a chin implant or genioplasty, and often with submental liposuction, in a single operation.
Combining also makes financial sense for anyone travelling, since theatre time, the anaesthetist and the trip are shared. Ask for a combined quotation rather than adding up separate ones.
How long jawline contouring lasts depends on the method. Bone removal and implants are permanent, and the outline they create does not change. Botulinum toxin lasts 4 to 6 months at first, and intervals usually lengthen with repeated treatment as the muscle stays smaller. Filler lasts 12 to 18 months. Fat removed by liposuction does not return, though remaining fat cells enlarge if you gain significant weight.
What continues in every case is ageing. The skin and soft tissue over the jaw continue to descend with time, which is why a sharp jawline created at 30 softens by 50 regardless of what was done to the bone underneath.
Jawline contouring does not change the bite when the right operation was chosen. Implants sit on the outside of the bone and do not affect the teeth. Mandibular angle reduction removes bone from the outer surface and lower border, away from the dental arches. Masseter injections temporarily weaken chewing strength but do not change how the teeth meet.
The exception is important. If your jaw looks wrong because the jaws themselves are mismatched, and your teeth do not meet correctly, then the correct treatment is orthognathic surgery with orthodontic preparation, which does change the bite deliberately. Contouring the outside of a jaw that is in the wrong position treats the appearance and leaves the function untouched.
Masseter botulinum toxin is the one form of jawline contouring with essentially no recovery. The injection takes a few minutes, there is no downtime, and most people return to work immediately. The narrowing appears gradually over 6 to 8 weeks as the muscle reduces with disuse, rather than immediately.
The one thing to expect is a temporary change in chewing. Biting into tough food such as steak or hard bread feels weaker for the first 4 to 6 weeks, and a small number of people notice a change in the shape of their smile if the injection spreads to a neighbouring muscle, which resolves as the effect wears off.
Correctly sized jaw angle implants read as bone structure rather than as surgery, because jawline contouring restores or creates an outline the face could plausibly have had. The results people recognise as artificial are over-sized ones, where the jaw is wider or more angular than the rest of the face supports, and the effect is particularly harsh in a thin face.
Custom implants designed from a CT scan reduce this risk, because they follow the shape of your own bone rather than approximating it. If you are having off-the-shelf implants, ask to hold them, and be sceptical of any recommendation for the largest size available.
Masseter injections need none. Submental liposuction needs 3 to 5 days, mostly for bruising and the compression garment. Jaw angle implants need about 10 days, largely because of swelling and the soft diet. Mandibular angle reduction needs 2 weeks as a minimum, and longer if your job involves speaking to people all day.
Across all of them, plan for looking swollen for longer than you feel unwell. Most patients are comfortable well before they are presentable, and booking a photographed event within 3 months of surgical jawline contouring is a reliable way to be disappointed by a good result.
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