An underbite is a type of dental misalignment where the lower front teeth sit in front of the upper front teeth when the mouth is closed.

In orthodontics, this is referred to as a Class III malocclusion. Underbites can range from mild to more severe and are often caused by a combination of genetic and environmental factors.

Common causes include differences in jaw growth, inherited traits, and childhood habits such as thumb-sucking or prolonged use of a dummy.

In some cases, trauma or injury to the jaw can also lead to an underbite developing.

While an underbite may affect appearance, it can also lead to practical difficulties with eating, speech, and dental health.

That’s why, when appropriate, early diagnosis and treatment can make a meaningful difference.

Why Correcting an Underbite Matters

Braces don’t just shift teeth, they help create a functional, balanced bite that supports lifelong oral health.

When the bite is properly aligned, each tooth works harmoniously, reducing wear and lowering the risk of future complications.

Treating an underbite also helps balance the facial profile and improve jaw function. For young patients, treatment can guide natural growth. For adults, it can prevent or resolve discomfort, making everyday activities like eating or speaking more comfortable.

At MP Orthodontics, we get to know your case first then we design your treatment around what matters most to you.

How Braces Can Help

Braces are a proven and effective way to treat underbites. They work by gradually moving the teeth into a more functional and comfortable position using gentle, controlled force.

In children and adolescents, braces may also assist in guiding jaw development during growth.

Depending on the type and severity of the underbite, additional orthodontic appliances may be recommended to assist with jaw positioning.

These might include elastics (rubber bands), upper jaw expanders, or temporary anchorage devices.

No two smiles are the same, so we take the time to personalise your treatment because what works for one person won’t work for everyone.

Types of Braces for Underbite Correction

There are several types of braces that may be used to correct an underbite, and the right option depends on factors like age, bite complexity, and personal preference.

• Traditional metal braces are reliable and commonly used, particularly for more complex cases. They allow precise control over tooth movement.
• Ceramic braces function similarly to metal braces but are made with tooth-coloured materials that blend in more naturally. They are often chosen by older teenagers and adults seeking a more discreet option.
• Lingual braces are attached behind the teeth, making them less visible from the front. They can be effective but may require a longer adjustment period.
• Clear aligners, such as Invisalign, are nearly invisible and removable. They are typically recommended for mild to moderate underbites and depend heavily on patient compliance.

Each method has its advantages. Your orthodontist will guide you through the choices, based on your clinical needs and treatment goals.

What to Expect During Treatment

The process starts with a comprehensive consultation. This includes digital scans, X-rays, and bite analysis to understand your individual needs.

From there, we create a step-by-step treatment plan tailored to your case.

Once braces are fitted, you’ll return regularly for adjustments. Depending on complexity, additional appliances may be introduced along the way. When active treatment ends, a retainer helps maintain your new smile.

Treatment time varies:

• Children & teens: May benefit from staged care that evolves with growth.
• Adults: Often complete treatment within 12 to 36 months.

Throughout, we work in partnership with your general dentist under our POD model – Patient, Orthodontist, Dentist for complete, coordinated care.

Costs of Underbite Treatment in Melbourne

The cost of underbite correction with braces in Melbourne can vary depending on the type of treatment and the complexity of the case. While we don’t provide generic quotes because every treatment plan is unique, families and adults exploring care can expect general price ranges such as:

These figures are estimates based on Melbourne practices and may vary depending on your specific needs and duration of treatment.

Private health insurance may provide partial rebates for orthodontic care.

If you’d like to learn more about personalised pricing or flexible payment plans, you’re welcome to enquire directly through our Orthodontic Payment Plan page.

Early vs. Late Treatment: Why Timing Matters

Underbite correction is possible at nearly any age, but timing can influence the path we take.

For children, early diagnosis allows orthodontists to monitor growth and sometimes begin treatment during key developmental windows. This is known as interceptive treatment and may include appliances that guide jaw growth before all adult teeth are present.

In teenagers, we often wait until most permanent teeth have erupted, but still benefit from the fact that the jaws are still developing. Braces combined with growth guidance tools can achieve meaningful results during this time.

Adults can also benefit from underbite treatment, though by this stage, the jaws are no longer growing. In some cases, treatment may involve braces alone, while others might require surgical support to achieve a fully functional bite. The important thing to know is that there’s no single “right age” to start, only what’s right for you or your child.

Do Adults Need Surgery to Fix an Underbite?

In certain adult cases where the underbite is due to a significant skeletal discrepancy, braces alone may not be enough to reposition the jaws. That’s when orthognathic surgery becomes part of the conversation.

This involves carefully coordinated treatment between our orthodontic team and an experienced oral and maxillofacial surgeon. The process includes:

• Braces before surgery to align the teeth
• Surgery to reposition the jaws
• Further orthodontic care to fine-tune the bite post-surgery

It’s important to know that not all adult underbites require surgery. We evaluate each case with care, explaining all options openly so that you can make an informed decision.

When surgery is needed, patients often describe it as life-changing, not just for their appearance, but for how comfortably they can chew and speak.

The Importance of Retainers

Once braces are removed, a custom retainer is provided to maintain the corrected bite. Retainers play an important role in preserving the results of treatment over the long term.

We continue to review patients after active treatment ends.

These check-ups ensure retainers are fitting well and that your bite remains stable.

Your general dentist also plays a role during this time, which is why we follow a POD model, a collaborative relationship between the Patient, Orthodontist, and Dentist to provide complete, coordinated care.

Considering Treatment? 

If you’re exploring braces for yourself or your child to correct an underbite, you likely have many questions.

That’s completely understandable.

Getting braces is a big step, so we’re here to make sure you feel clear, supported, and confident from day one.

When you’re ready, you’re welcome to get in touch to book a consultation or ask a question. We’ll meet you where you are with clarity, care, and trusted experience.

FAQ

How long does treatment usually take?

Most cases take between 12 and 36 months, though younger patients may start with a shorter phase of interceptive care.

Will it be painful?

Some discomfort is normal, particularly after adjustments. Most patients describe it as a dull ache that eases in a few days. We guide you on how to manage this comfortably.

Are there food restrictions with braces?

Yes, it’s best to avoid sticky, hard, or overly crunchy foods. We provide a clear guide at the start of treatment.

Can underbites come back after treatment?

Without a retainer, some relapse is possible. That’s why we emphasise the importance of the retention phase and regular follow-up.

Is it possible to fix an underbite without braces?

Mild cases may be treated with clear aligners. In some adult cases, surgery may be needed. We’ll advise you honestly on what’s best for your situation.

Does private health insurance cover orthodontics?

Many policies provide partial coverage. We recommend checking with your insurer, and we can help you navigate rebate options.