Jaw Surgery (Orthognathic Surgery) for Bite Problems: What to Know

Editorially reviewed by the Dental.me Editorial Team · Updated July 2026

Most bite problems can be corrected by moving the teeth with braces or aligners. But some bites are the way they are because the jawbones themselves are mismatched in size or position, not just the teeth. When the skeleton is the problem, straightening the teeth alone can’t fix it. That’s where corrective jaw surgery, known as orthognathic surgery, comes in. It’s a bigger commitment than braces, so it’s reserved for cases that genuinely need it, but for the right person it can transform how they chew, breathe, speak, and look. Here’s an honest, plain-English look at what jaw surgery for bite problems involves.

What corrective jaw surgery actually is

Orthognathic surgery is surgery performed by an oral and maxillofacial surgeon to reposition the upper jaw (the maxilla), the lower jaw (the mandible), or both. The goal is to correct skeletal bite and jaw problems, meaning cases where the bones are misaligned or mismatched, rather than problems caused only by crooked teeth.

The key distinction is simple. Orthodontics moves teeth within the jaws, but it cannot move the jawbones themselves. If your lower jaw sits too far forward or your upper jaw is set back, no amount of tooth movement will change where those bones are. Surgery is what actually repositions the bone, cutting it precisely and securing it in its new position with small titanium plates and screws. That’s why severe skeletal cases need surgery and orthodontics working together, not one or the other.

When jaw surgery is needed

Jaw surgery is considered for significant skeletal discrepancies, not for minor crowding or a slightly off bite. Situations where a surgeon may raise it include:

• A severe underbite, where the lower jaw projects too far forward relative to the upper jaw.
• A severe overbite or large overjet, often because the upper jaw is forward or the lower jaw is small and set back.
• An open bite, where the front teeth don’t meet even when the back teeth are closed.
• Marked facial asymmetry, where one side of the jaw is longer or positioned differently than the other.
• A discrepancy large enough to cause real functional problems with eating, speaking, or breathing.

If you’re not sure which category your bite falls into, our overview of overbite, underbite, and crossbite is a helpful starting point before any consultation.

Why people choose it: the benefits

The reasons to consider jaw surgery are both functional and, secondarily, aesthetic. People pursue it to:

• Correct the bite for proper chewing. When jaws are severely misaligned, biting and chewing efficiently can be genuinely difficult. Repositioning the jaws lets the teeth meet the way they should.
• Ease jaw and TMJ strain. A poorly aligned skeletal bite can put uneven load on the jaw joints and muscles. Correcting the underlying structure can relieve some of that strain.
• Improve breathing and airway. Advancing the jaws can open the airway, and in some cases this helps obstructive sleep apnea. Airway concerns are a common medical reason surgery is recommended.
• Address speech difficulties that stem from the way the jaws and teeth come together.
• Improve facial balance and profile. Because the surgery changes bone position, it naturally affects the shape of the lower face, often bringing the profile into better proportion.

The typical process: a combined ortho-surgical journey

Jaw surgery is almost never a standalone procedure. It’s one stage of a combined orthodontic and surgical plan, and understanding the sequence helps set realistic expectations.

1. Braces or aligners first

Before surgery, most patients wear braces (or in some cases aligners) for roughly 12 to 18 months. This may feel counterintuitive, because your bite can look worse during this phase. The orthodontist is aligning the teeth within each jaw and positioning them so that they’ll fit together correctly once the jaws are moved into their new place. If you’re curious how this tooth movement works, see our explainer on how braces work.

2. The surgery

The surgery repositions one or both jaws and fixes them in place with small plates and screws. It’s done under general anesthesia, usually in a hospital, and often involves an overnight stay. Modern techniques generally allow the jaws to be stabilized with elastic bands rather than being fully wired shut, which makes the early recovery more manageable than the old reputation suggests. Most of the incisions are made inside the mouth, so visible scarring is typically minimal.

3. Orthodontics after surgery, then retainers

Once the jaws have healed enough, orthodontic treatment continues to fine-tune how the teeth fit together. When the bite is settled, retainers hold everything in place. From the first braces to the final retainer, the whole journey commonly takes about 1.5 to 3 years.

Recovery and what to expect afterward

Recovery from jaw surgery is real and shouldn’t be underestimated, but it’s also predictable. In broad terms:

• Swelling is significant in the first days and gradually subsides over several weeks, with the last traces taking longer.
• Diet starts as liquids and soft foods for a period, slowly progressing as the jaws heal. Planning easy, nutritious meals ahead of time helps.
• Numbness of the lip, chin, or cheek is common early on because nerves run close to the surgical area. It usually improves over weeks to months.
• Time off work or school is typically a couple of weeks initially, with energy and comfort continuing to improve after that.
• Bone healing continues over several months, even though you’ll feel more like yourself well before it’s fully complete.

Risks, cost, and how it’s evaluated

Because this is major surgery, it carries genuine risks that deserve honest discussion. These include bleeding, infection, and numbness of the lip or chin from nerve involvement, which is usually temporary but can rarely be lasting. There’s also a possibility of some relapse, where the jaws or teeth shift slightly over time. On top of that, there’s the recovery itself and the cost. Those are exactly the reasons surgery is reserved for cases that truly need it and is a decision made carefully with your care team.

Who evaluates you

Two specialists plan the treatment together: an oral and maxillofacial surgeon and an orthodontist. Evaluation typically includes detailed imaging such as a CBCT scan, along with models and photographs, so the team can plan the exact bone movements in advance. This coordinated planning is a big part of why outcomes are reliable.

Cost and insurance

Jaw surgery is expensive. The encouraging part is that, unlike purely cosmetic procedures, medical insurance may cover it when it’s considered functionally or medically necessary, for example when the bite causes eating difficulty or the jaw position contributes to sleep apnea. It’s always worth checking your specific coverage and getting the medical necessity documented.

Alternatives for milder cases

Not every bite problem needs surgery. Milder discrepancies can often be handled with orthodontics alone, or with what’s sometimes called “camouflage” treatment, where the teeth are moved to compensate for a modest skeletal difference without operating on the bones. Your specialists will tell you honestly which path fits your case.

The takeaway

Jaw surgery corrects severe skeletal bite and jaw problems that braces alone can’t fix, improving chewing, everyday function, breathing, and facial balance. It’s a combined orthodontics-plus-surgery journey that usually runs about 1.5 to 3 years, with a real recovery period and genuine risks, which is why it’s reserved for cases that truly need it. It’s often at least partly covered by medical insurance when it’s medically necessary, and it’s always planned together by an oral surgeon and an orthodontist. If you have a bite that makes eating hard, affects your breathing or speech, or looks and feels significantly off, start with a dentist or orthodontist. They can assess whether your issue is in the teeth or the bones and, if needed, refer you to an oral surgeon to explore your options.

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