Can an Adult Crossbite Be Fixed Without Jaw Surgery?
Yes. Most adult crossbites are corrected without surgery, using braces, clear aligners, or arch expansion to move teeth into the correct relationship. Surgery is reserved for severe skeletal crossbites where the jawbone itself has to be repositioned or widened, which is a minority of adult cases.
The deciding factor is not your age. It is whether your crossbite is dental or skeletal. A dental crossbite means the teeth are tipped or positioned wrong within jaws that are proportioned normally, and moving teeth solves it. A skeletal crossbite means the upper jaw is genuinely too narrow or misaligned relative to the lower jaw.
That distinction can only be made from records, not from a mirror. Below is what a crossbite is, how the dental-versus-skeletal call is made, which non-surgical options work for adults, when surgery is genuinely recommended, and what happens if a crossbite is left alone.
What Is a Crossbite, and Which Type Do You Have?
In a normal bite, the upper teeth sit slightly outside the lower teeth, toward the cheeks. In a crossbite, one or more upper teeth close inside the lower teeth instead. It can affect a single tooth or an entire segment of the arch, and the location determines what it is called.
Anterior crossbite
One or more upper front teeth sit behind the lower front teeth when the mouth closes. It is often confused with an underbite. The difference is scope: an underbite involves the whole lower arch sitting forward, while an anterior crossbite can involve just one or two teeth.
Posterior crossbite
One or more upper back teeth close inside the lower back teeth. This is the type most often caused by a narrow upper arch, and it frequently shows up alongside crowding. It can affect one side or both, and a one-sided posterior crossbite sometimes causes the jaw to shift as it closes.
What causes a crossbite in the first place?
The usual contributors are genetics and inherited jaw proportions, a narrow upper arch, delayed or abnormal tooth eruption, teeth erupting into the wrong position because of crowding, prolonged childhood habits such as thumb sucking or mouth breathing, and early loss of baby teeth that lets adjacent teeth drift. Many adult crossbites were present in childhood and simply never treated.
How Does the Dental vs. Skeletal Distinction Decide Whether You Need Surgery?
This is the single most important question in an adult crossbite case, and it is the reason two people with visually similar bites get completely different recommendations.
Why a dental crossbite does not need surgery
If the jaws are proportioned normally and the teeth are simply in the wrong place, the correction is tooth movement. Braces or aligners tip and translate the affected teeth back into a normal relationship. No bone is being repositioned, so there is nothing for surgery to add.
Why a skeletal crossbite is different in adults
If the upper jaw is genuinely too narrow, the correction requires widening bone, not just moving teeth. In children and adolescents the two halves of the palate have not fully fused, so a palatal expander can widen the upper jaw itself. In adults that suture is typically fused, which narrows the options: mild skeletal narrowness can often still be camouflaged by moving teeth, while significant narrowness may require a surgically assisted approach.
How is the call actually made?
From records. At BHO we take 5D iTero digital scans and digital X-rays, which show tooth positions, root angles, and the relationship between the upper and lower jaws. A scan reveals whether the upper teeth are tipped inward inside a normal arch, which points to a dental problem, or whether the entire arch is narrow, which points to a skeletal one. Nobody can tell you which one you have without imaging.
What Are the Non-Surgical Options for Correcting an Adult Crossbite?
Three approaches handle the large majority of adult crossbites, often in combination.
Braces, usually with elastics
Fixed appliances give the most precise three-dimensional control, which matters when a tooth needs to be moved outward and rotated at the same time. Elastics are commonly added to shift how the arches meet. Braces treatment generally runs 12 to 24 months for crossbite correction, depending on how many teeth are involved. At BHO we use LightForce custom brackets for patients in braces, which are designed from a 3D scan of your specific teeth.
Clear aligners
Aligners work well for mild to moderate dental crossbites and are the option most adults ask about first, because they are removable and nearly invisible. They can widen an arch to a degree by tipping teeth outward, and they can correct single-tooth anterior crossbites effectively. We treat these cases as an Invisalign Blue Diamond Top 1% provider, and aligners require 20 to 22 hours of daily wear to track on schedule.
Arch expansion and hidden appliances
Some adult cases benefit from arch development before or during alignment to create the width the bite needs. For patients who want correction without visible hardware, InBrace sits entirely behind the teeth and works continuously without tray changes or monthly tightening, with visits every 8 to 10 weeks.
Can a crossbite correct itself, or be fixed at home?
No. A crossbite does not resolve on its own in an adult, and there is no exercise, appliance sold direct to consumers, or at-home technique that safely repositions teeth against an opposing bite. Attempting it without diagnosis risks moving teeth through unsupported bone or making a one-sided jaw shift worse.
Braces vs. Aligners vs. Surgery for Adult Crossbite Correction
Here is how the realistic options compare for an adult:
| Clear aligners | Braces | Surgical correction | |
|---|---|---|---|
| Best suited to | Mild to moderate dental crossbites | Moderate to severe dental crossbites, multiple teeth involved | Severe skeletal crossbites |
| What it moves | Teeth | Teeth, with the most precise control | The jawbone itself |
| Visibility | Nearly invisible | Visible; hidden behind-the-teeth options exist | Not applicable |
| Removable | Yes, for eating and brushing | No, fixed in place | No |
| Typical length | Varies with case complexity | Roughly 12 to 24 months for crossbite correction | Orthodontics before and after the procedure |
| Compliance required | 20 to 22 hours of daily wear | Works passively; elastics need consistent wear | Surgical recovery period |
| How often it is needed in adults | Common | Common | Minority of cases |
Read the bottom row carefully, because it is the one patients most often get wrong before their consultation. Surgery is a real option for a small group of adults with genuine skeletal discrepancies, not the default path for an adult crossbite.
When Is Jaw Surgery Genuinely Recommended?
Surgery enters the conversation when the problem is structural and beyond what tooth movement can compensate for. The usual indicators are a substantially narrow or asymmetric upper jaw, a crossbite combined with a significant underbite or facial asymmetry, functional problems that persist because the jaws simply do not fit, or a case where camouflaging the discrepancy with teeth would push them into unhealthy positions.
When surgery is recommended, it is not instead of orthodontics. It is combined with it: braces or aligners position the teeth before the procedure and detail the bite afterward. If an orthodontist recommends surgery, it is reasonable to ask exactly which finding drives that recommendation and what a non-surgical compromise would look like, including what it would not fully correct.
What we see in our own practice
Our crossbite before-and-after gallery is worth reviewing on this point. One patient arrived after two other providers told him his severe crowding meant teeth would have to be extracted; Dr. Madan treated his crowding and the resulting anterior crossbite with Invisalign, no extractions. Another had a narrow upper arch and crowding that had created an anterior crossbite even after previous orthodontic work, and was also treated with aligners. Real cases, real records, no surgery.
What Happens if an Adult Crossbite Is Left Untreated?
A crossbite is not only cosmetic, and this is the part most patients underestimate. When teeth close in the wrong relationship, the forces of chewing land where the anatomy was not designed to take them.
- Uneven enamel wear. The teeth in crossbite take abnormal contact and wear faster than the rest of the arch.
- Gum recession. Teeth tipped outside their normal position can lose gum coverage on the exposed side.
- Jaw strain and asymmetry. A one-sided posterior crossbite can make the jaw shift to close, which loads the joint and muscles unevenly.
- Chewing inefficiency. Teeth that do not meet properly do less of the work, concentrating force on the ones that do.
- Worsening crowding. A narrow arch keeps competing for space, and teeth continue to drift through adulthood.
None of this happens overnight, which is exactly why adult crossbites get postponed for decades. The cost of waiting is usually paid in enamel and gum tissue that cannot be regrown, so earlier correction protects more than appearance.
Frequently Asked Questions About Adult Crossbite Correction
Is it worth fixing a crossbite as an adult?
For most patients, yes, and the reasons are functional rather than cosmetic. Correction stops the uneven enamel wear and gum recession the crossbite is causing, distributes chewing force properly, and can relieve jaw strain from a shifted closing pattern. Those benefits do not diminish with age, and the damage from leaving it is cumulative.
At what age should a crossbite ideally be corrected?
Childhood is easier, because the palate has not fused and a narrow upper jaw can be widened directly. The American Association of Orthodontists recommends a first orthodontic evaluation by age 7 for exactly this reason. That said, adults are treated successfully all the time; the earlier window simply offers more ways to address a skeletal component.
Which is better for a crossbite, braces or Invisalign?
Neither is universally better. Aligners suit mild to moderate dental crossbites and win on discretion and removability. Braces offer more precise control when several teeth need to move outward and rotate, or when elastics are doing significant work on the bite relationship. The right answer comes from your scan, not from a preference stated in advance.
What happens if I only fix the crossbite and not the crowding?
In most cases you cannot cleanly separate them, because a narrow arch is often causing both. Correcting the crossbite without addressing the space shortfall tends to relapse, since the same lack of room that pushed teeth out of position is still there. Combination cases are planned as one sequence for that reason.
Find Out Which Kind of Crossbite You Have — Before Assuming Surgery
If you have been told you might need jaw surgery, or you have simply assumed it for years, a scan will give you a real answer. Our team will image your bite, explain whether your crossbite is dental or skeletal, and show you the options that genuinely apply to your case with no pressure to decide on the spot. You can request your free consultation at any of our four Los Angeles-area locations, or call or text us at (310) 785-0770.