Key takeaways

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Underbite correction is possible at almost any age, thanks to modern orthodontic and surgical advancements. Treatment is no longer limited to children or teens.

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An underbite occurs when the lower teeth extend in front of the upper teeth, and it can affect chewing, speech, jaw comfort, and long-term oral health.

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The cause of an underbite matters. Some cases are dental and involve tooth positioning, while others are skeletal and related to jaw structure.

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Braces remain one of the most effective underbite treatment options, especially for mild to moderate cases where tooth alignment is the primary issue.

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Clear aligners can fix certain underbites discreetly, making them a popular option for adults who want a removable and less noticeable solution.

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Elastics and orthodontic appliances play a key role in guiding how the upper and lower teeth come together during treatment.

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Early treatment in children can prevent severe underbites later, as growing jaws are easier to guide and reshape.

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Palatal expanders and facemasks are effective tools for correcting underbites during childhood and early adolescence.

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Severe or extreme underbites may require jaw surgery, especially when orthodontics alone cannot correct jaw positioning.

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Treatment duration varies widely, ranging from a few months to several years, depending on severity, age, and treatment type.

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Consistency and compliance are critical. Wearing aligners, elastics, or appliances as instructed directly impacts treatment success.

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Adult underbite correction is common and effective, although treatment may take longer due to fully developed jawbones.

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Costs depend on the complexity of the case, with orthodontic-only treatments generally being more affordable than surgical options.

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A professional orthodontic evaluation is essential to determine the most effective and stable treatment plan.

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With the right approach, underbite correction improves function, comfort, facial balance, and confidence over the long term.

An underbite, also known as a Class III bite, happens when the lower teeth sit in front of the upper teeth. A bad underbite does not always start severely. It can develop over time, or it may show up early in childhood and worsen if ignored. Genetics plays a role, and lifestyle habits like thumb sucking, tongue thrusting, or prolonged pacifier use often get overlooked, yet impact an underbite. The good news is that underbite correction is no longer limited to extreme or invasive solutions. Modern orthodontics has expanded the toolbox. From braces and elastics to aligners and jaw surgery, there is now a treatment option for nearly every case.

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What causes an underbite?

Before discussing solutions, it helps to understand what causes an underbite in the first place. Not every underbite is created equal. Some underbites are dental that means the jaw structure itself is fairly normal, but the teeth have shifted into the wrong positions. While others are skeletal. In those cases, the lower jaw grows forward more than the upper jaw, creating a deeper imbalance.

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Common underbite treatment options for adults

Adult bones are no longer growing, which means treatment focuses on repositioning rather than guiding growth. Still, modern orthodontics and surgical techniques make adult underbite correction highly effective. Whether you are 25 or 55, options exist. The plan may look different, but the goal remains the same: a balanced, functional bite.

There is no single solution that works for everyone. The best approach on “how to fix a underbite” depends on severity, age, and whether the issue is dental or skeletal. Here are some underbite malocclusion treatment options.

Braces for underbite correction

A dentist fixing braces in the lower jaw of a girl.

Braces remain one of the most effective tools for correcting underbites. They work by applying controlled pressure to move teeth into better alignment over time. This pressure is gradual. It can feel uncomfortable at first. Metal braces are still widely used, though ceramic options exist for a more subtle look. Lingual braces are a discreet orthodontic option used in certain underbite treatment cases, especially when patients want effective correction without visible brackets.

Braces are especially effective when tooth positioning is the primary problem rather than jaw structure. For many patients wondering how to correct an underbite without surgery, braces are often the first recommendation.

Clear aligners

A close-up of a girl applying clear aligners.

Clear aligner systems have changed how people think about orthodontics. They are removable, discreet, and surprisingly effective for certain cases. If you are exploring how to fix an underbite without visible braces, aligners may be an option. They work best for mild to moderate underbites where jaw structure does not require repositioning. However, it should be noted that aligners require discipline. They only work if worn consistently. That trade-off is worth it for many adults who prefer flexibility.

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Tooth extraction

This part makes people nervous. Tooth extraction sounds extreme, but it is not always drastic. In some cases, overcrowding contributes to the underbite. Removing one or more teeth creates space. That space allows the remaining teeth to shift into healthier positions. Extraction is never the first choice, but it can be the most efficient solution when crowding limits movement. Extraction decisions are made carefully and supported by imaging, measurements, and long-term bite planning.

How do you fix an underbite in children

The following are some of the options for underbite correction in children.

Palatal expanders

For children, a palatal expander helps widen the upper jaw gradually. It sits on the roof of the mouth and applies gentle outward pressure over time. This device helps the upper jaw catch up with the lower jaw. It also reduces crowding and improves airflow in some cases. Results are often faster in younger patients because bone structure adapts more easily.

Reverse-pull facemask

This appliance gently pulls the upper jaw forward. It looks intimidating, but it works remarkably well when used consistently during growth years. Parents often hesitate at first. Children adjust quickly. The long-term benefit can be avoiding surgery later in life.

Growth-modification orthodontics

Sometimes treatment combines expanders, facemasks, and early braces. This approach reshapes jaw growth patterns rather than simply reacting to them. For families exploring how to fix an underbite early, growth modification offers one of the most proactive solutions available.

Surgical options for severe underbite

Not every underbite can be corrected with orthodontics alone. When the jaw structure itself is the issue, surgery becomes part of the conversation.

Jaw Surgery

Orthognathic surgery repositions the jaw into proper alignment. It is typically recommended for adults with a severe underbite or extreme underbite that affects function or facial balance.

Surgery may involve:

  • Moving the upper jaw forward

  • Repositioning the lower jaw backward

  • Adjusting both jaws for symmetry

Orthodontic treatment usually happens before and after surgery. Surgery corrects the structure. Braces or aligners fine-tune the bite. This option is often recommended when:

  • Chewing or breathing is difficult

  • The facial profile is significantly affected

  • Orthodontics alone cannot correct the bite

What to expect during underbite correction

Treatment duration

Treatment length varies widely. Mild cases may take four to six months, while complex cases may take two years or more. Surgical cases require additional recovery time. Children often respond faster. Adult treatment takes patience, but it is absolutely possible.

Professional evaluation matters

No two underbites are the same. X-rays, bite analysis, facial structure assessment, and growth evaluation all play a role in creating a treatment plan. This is where expertise matters most. A rushed diagnosis leads to compromised results.

Lifestyle adjustments

Some treatments demand daily commitment, like aligners that must be worn for the required time frame. Facemasks require consistency. The outcome depends as much on compliance as it does on the treatment itself. That reality is not glamorous, but it is honest.

Cost considerations for underbite treatment

  • Costs vary depending on treatment type, duration, and complexity.

  • Metal braces usually range between $3,000 to $7,500

  • Ceramic braces cost between $2,000 to $8,500.

  • Lingual braces range between $5,000 to $13,000

  • Clear aligners are between $1,000 and $7,000

  • Surgical treatment involves higher costs, which usually range between $20,000 to $40,000

Early intervention in children often reduces long-term expenses.

Insurance coverage differs widely. Some plans cover orthodontics partially. Others cover surgery when medically necessary. Transparency matters here. Ask questions early to understand the investment before committing.

Underbite correction

An underbite does not define you, but it does deserve attention. Whether mild or severe, early or long-standing, treatment options exist that can improve comfort, function, and confidence. Modern orthodontics offers flexibility. Surgery offers structural correction when needed. Clear aligners offer discretion, braces offer reliability. The first step is understanding your options. The second is acting on them. If you are looking forward to a hassle-free and effective underbite treatment, Caspersmile Clear Aligners can help you achieve a straighter and healthier smile. Order your plan today to kick-start your smile journey.

Frequently asked questions

faqs
Options include braces, clear aligners, elastics, expanders, facemasks, tooth extraction, and jaw surgery, depending on severity.
Yes. Many mild to moderate cases can be corrected with orthodontics alone.
Costs vary widely depending on the treatment option. Severe cases involving surgery are more expensive than orthodontic-only treatments.
Yes, adults can successfully undergo underbite correction with braces, aligners, or surgery.
It is never too late to explore treatment. Options exist at nearly any age.

References

Underbite. (2025, December 19). Cleveland Clinic. https://my.clevelandclinic.org/health/diseases/24985-underbite

Professional, C. C. M. (2025g, November 17). Palate Expander. Cleveland Clinic.
https://my.clevelandclinic.org/health/treatments/23502-palate-expander
American Orthodontic Society. Identifying and Treating Malocclusions Classes I, II, and III
(https://orthodontics.com/identifying-and-treating-malocclusions-classes/).