# Underbite treatment: what causes it, when aligners work and when jaw surgery is needed

An underbite means your lower teeth sit in front of your upper teeth. Sometimes the teeth are the whole story and clear aligners can help. Sometimes the jaw is the cause and the answer is surgery with a specialist. Neola Dental in Minneola, FL explains how to tell the difference.

- Fuente: https://neoladental.com/blog/underbite-treatment-minneola-fl
- Autor: Dr. Josaida Contreras, DDS
- Publicado: 2026-10-23
- Revisado: 2026-10-23
- Idioma: en
- Consultorio: Neola Dental, 825 US-27 #104, Minneola, FL 34715 · (352) 717-2177

---
An underbite means your lower front teeth sit in front of your upper front teeth, and the right treatment depends on whether the cause is your teeth or your jaw. A mild, tooth-based underbite can often be corrected with [Invisalign](/invisalign) clear aligners, with no brackets or wires. A severe, skeletal underbite usually needs jaw surgery planned by an oral surgeon and an orthodontist. At Neola Dental, a privately owned, non-corporate practice in Minneola, we treat the mild cases ourselves and refer the severe ones to the right surgeon, with a clear explanation of why. Untreated, an underbite can contribute to uneven tooth wear and chewing trouble, and only a consultation with an exam and X-rays shows which kind you have.

Wondering which type you have? Call Neola Dental at (352) 717-2177 or [book a visit online](/schedule).

## What is an underbite?

In a typical bite, the upper front teeth rest slightly in front of the lower ones, like the lid of a box over its base. The upper teeth also protect your lower lip and tongue from being bitten. With an underbite the pattern flips. The lower front teeth sit in front of the upper teeth, so the lower jaw looks like it juts forward.

Dentists classify this as a Class III malocclusion, and MedlinePlus describes it as a lower jaw that protrudes and a lower set of teeth that overlap the upper. Underbites range widely. In one person only a single upper tooth sits behind its partner. In another, the whole upper arch sits behind the lower and the chin is visibly prominent.

That range is why you cannot judge your own underbite from a photo. Two people can both say "I have an underbite" and need completely different care.

## Dental underbite vs skeletal underbite

Dentists separate underbites into two kinds, and the kind decides the treatment.

A dental underbite is about the teeth. The jaws are a normal size and relationship, but the upper front teeth tilt backward, the lower front teeth tilt forward, or both. Teeth can be moved, so this type responds to orthodontic treatment such as aligners.

A skeletal underbite is about the bone. The lower jaw is larger or sits farther forward than the upper jaw, the upper jaw is smaller or set back, or the two differences combine. Moving the teeth can hide part of the mismatch, but it cannot change the size of the jaws. That is why skeletal cases that are significant are handled with surgery.

Some people have a mix, with a small jaw difference and teeth that have tilted to compensate. Those in-between cases take the most careful evaluation, and we would rather say "this needs a specialist's opinion" than promise something the teeth cannot deliver.

## What causes an underbite?

Most underbites come from how the jaws grew, and genetics is the biggest driver. If a parent or grandparent has a prominent lower jaw, a child is more likely to have one too. MedlinePlus notes that malocclusion is most often inherited, usually through a difference in size between the upper and lower jaws.

Other causes include:

- Childhood habits such as thumb sucking, tongue thrusting, and prolonged pacifier or bottle use
- Missing, extra, or misplaced teeth that change how the arches fit together
- Jaw injuries that heal out of position
- Conditions present from birth, such as cleft lip and palate
- Rarely, growth disorders or tumors of the jaw

## Why treat an underbite?

Some people live comfortably with a mild underbite. Others do not, and there are real reasons to look into it.

When the front teeth do not meet correctly, the biting edges rub against each other in the wrong places. Over years that can chip or flatten teeth and expose the softer layer underneath.

Biting into food with the front teeth can be difficult, and some people compensate by chewing mostly on one side.

MedlinePlus lists straining the teeth, jaws, and muscles among the effects of poorly aligned bites, and says correcting moderate or severe cases can reduce the strain and may ease symptoms of jaw joint problems. If you already have jaw pain, clicking, or headaches, our page on [dental treatment for TMJ and TMD](/dental-treatment-for-tmj-and-tmd) explains what we look at.

## How to tell a mild underbite from a severe one

You can notice clues at home, but you cannot confirm the answer there.

Signs that point toward a mild, dental underbite:

- Only a few front teeth are crossed, and the rest of the bite is fairly even
- Your face looks balanced from the side

Signs that suggest a skeletal underbite:

- The chin looks prominent, or the middle of the face looks flat in profile
- Many upper teeth sit behind the lower teeth, not just a couple
- The lower jaw seems to shift forward when you bite down

None of these lists replaces an exam. A dentist checks how your teeth meet and how your jaw moves, then uses X-rays to see the bone and roots. Those images show whether the problem lives in the teeth or in the jaw, and that answer separates the aligner path from the surgery path.

## Invisalign for mild underbites

For a mild, tooth-based underbite, clear aligners can be a good fit. [Invisalign](/invisalign) moves teeth in small steps with a series of custom trays, and each one is replaced every few weeks as teeth shift. The trays come out for eating, brushing, and flossing, and most people find them far less noticeable than metal brackets.

What aligners can do for an underbite depends on the case. They can tilt the upper front teeth forward, upright the lower front teeth, and improve how the front teeth meet. They cannot change how large your jaw is. That is why we assess the case first, and why we tell you honestly if aligners alone are unlikely to give a result you would be happy with.

Treatment length depends on how far the teeth need to travel and how consistently the aligners are worn, so we do not quote timelines before an exam. Retainers afterward keep the teeth in place.

## What about traditional braces?

Braces are one of the standard options for correcting bite problems, and the American Dental Association describes how bands, brackets, and wires apply steady pressure to move teeth. Neola Dental does not offer traditional braces, so if you want braces for an underbite you would see an orthodontist who does.

Our [guide to Invisalign vs braces](/blog/invisalign-vs-braces-minneola-fl) compares how the two work, and a consultation with us will tell you whether your case sits in the range we treat or is better handled elsewhere.

## Severe and skeletal underbites: what happens

When the jaws themselves are the cause, the treatment is corrective jaw surgery, called orthognathic surgery. MedlinePlus notes that surgical reshaping to lengthen or shorten the jaw is needed in rare cases of malocclusion, and a significant skeletal underbite is one of those cases.

Neola Dental does not perform jaw surgery. If your exam and X-rays point to a skeletal problem, we refer you to specialists. The usual team is an oral and maxillofacial surgeon, who does the operation, and an orthodontist, who aligns the teeth before and after it. The orthodontist and surgeon typically plan the case together.

Here is the general sequence, which your specialists will tailor to you:

1. Evaluation: records, X-rays, and a plan with both the surgeon and orthodontist.
2. Orthodontic preparation: teeth are aligned so they will fit together correctly once the jaw moves. This phase can take many months.
3. Surgery: the surgeon repositions the jaw. It is a hospital or surgical-center procedure with recovery time afterward.
4. Finishing: the orthodontist fine-tunes the bite, and you move to retainers.

We will not guess at timelines, recovery, or cost for a procedure we do not perform. The specialists give you those after they examine you. For what we do handle in the office, see our [oral surgery page](/oral-surgery).

## Underbite in children

Underbites often show up early. A child whose lower teeth cover the upper ones when they bite down is worth mentioning at the next visit. Timing matters because a child's jaws are still growing, and some bite problems can be guided during that growth. Whether early treatment makes sense, and who should provide it, is a decision for a dentist and orthodontist after an exam.

Parents can help by watching habits. Thumb sucking and long pacifier use past the toddler years can influence how teeth and jaws develop, and a dentist can suggest ways to ease a child out of them.

## Underbite in adults

Adults ask about underbites because they never had it treated, or because wear and jaw soreness finally got their attention. Age alone is not a barrier. Teeth can move at any age when the gums and bone are healthy, which is why many adults use aligners successfully for mild bite problems.

For adults, the jaw has finished growing. That makes the mild-versus-skeletal question even more important, because a skeletal underbite will not change with growth guidance. Surgery with orthodontics is the main route for significant cases. We also check your gums, any worn or restored teeth, and any jaw symptoms before suggesting a plan.

## What to expect at your consultation

A consultation at Neola Dental is meant to answer one question: which group does your underbite fall in?

- Tell us what bothers you, whether that is the look, the chewing, the wear, or the jaw.
- We check how your teeth meet, how your jaw moves, your gums, and any wear or damage.
- X-rays show the roots and bone, which a mirror cannot.
- If aligners can reasonably help, we explain what they would do and what they would not. If your case looks skeletal, we explain why and refer you to a surgeon and orthodontist.

You will not be pushed into a treatment that does not fit. As a privately owned practice, we have no corporate quota to meet. If cost is on your mind, see our [payment options](/payment-options).

## Frequently asked questions about underbite treatment

### Can an underbite be fixed without surgery?

Often, yes, when the underbite is mild and comes from how the teeth are tilted or positioned rather than from the jaw itself. At Neola Dental we treat mild underbites with Invisalign. When the lower jaw is too large or the upper jaw too small, the bite cannot be fully corrected by moving teeth alone, and jaw surgery is usually part of the plan.

### Can an underbite be corrected in adults?

Yes. Teeth can move at any age as long as the gums and bone are healthy, so adults with mild underbites can use aligners. Adults with a skeletal underbite are different, because the jaw has finished growing and surgery is the main way to change it. An exam and X-rays tell you which group you are in.

### Is an underbite bad for your teeth and jaw?

It can be. When the front teeth do not meet the way they should, the lower teeth and the edges of the upper teeth can wear unevenly, chewing can feel awkward, and some people develop jaw soreness. A mild underbite may cause none of this. Whether yours needs treatment depends on your bite, your symptoms, and what your dentist sees.

### How do I know if my underbite is mild or severe?

You cannot reliably tell from a mirror. A mild underbite is usually limited to the teeth, while a severe one involves the size or position of the jaws and often changes the profile of the face. Only a dental exam, bite records, and X-rays can separate the two, and that answer decides whether aligners or a surgical referral is the right path.

### Does Neola Dental offer braces or jaw surgery for an underbite?

We treat mild underbites with Invisalign clear aligners. We do not offer traditional braces. If your underbite is severe or skeletal, we refer you to an oral surgeon and an orthodontist who plan corrective jaw surgery together, and we stay involved in your general dental care. Call (352) 717-2177 and we will tell you which route fits your case.

## Book an underbite consultation in Minneola

If your lower teeth sit in front of your upper teeth, you do not have to guess how serious it is. Call Neola Dental at (352) 717-2177 or [schedule online](/schedule). We serve families in Minneola, Clermont, Groveland, Winter Garden, Mascotte, and Montverde, and we will give you an honest answer about whether aligners, braces from an orthodontist, or a surgical referral fits your bite.

## Sources

- [MedlinePlus - Malocclusion of teeth](https://medlineplus.gov/ency/article/001058.htm)
- [American Dental Association, MouthHealthy - Orthodontics](https://www.mouthhealthy.org/all-topics-a-z/orthodontics)
- [American Dental Association, MouthHealthy - Braces](https://www.mouthhealthy.org/all-topics-a-z/braces)
- [MedlinePlus - Temporomandibular Disorders](https://medlineplus.gov/temporomandibulardisorders.html)