How to Fix an Underbite: Best Treatment Options and Solutions

• November 28, 2024
• Dr. Catherine-Anne Walsh

An underbite, where the lower teeth overlap the upper teeth due to the forward positioning of the lower jaw, can impact not only the appearance of your smile but also your oral health and overall comfort.

This condition, clinically known as a Class III malocclusion, may lead to challenges with chewing, speech and even breathing. Fortunately, there are various solutions for how to fix an underbite, ranging from non-invasive orthodontic methods to corrective surgery. Let’s explore the causes, treatment options and benefits of achieving perfectly aligned teeth.

What Causes an Underbite?

Underbites can develop due to several factors, often starting in childhood. These may include genetic influences, certain habits, or uneven jaw growth, which can create an imbalance in the alignment of the upper and lower teeth. Some common causes include:

• Genetics
• Childhood habits (e.g., thumb-sucking, mouth breathing)
• Uneven jaw growth
• Upper jaw forward or protruding jaw

Fixing an underbite can improve chewing efficiency, speech clarity and overall jaw comfort.

Diagnosing an Underbite

To determine the most suitable underbite treatment, a dental professional will typically perform a comprehensive assessment, including X-rays and an evaluation of the upper and lower jaw alignment. This diagnostic process helps identify whether underbite surgery or orthodontic treatment can bring the upper front teeth and lower teeth into their correct position.

Non-Surgical Treatment Options

Braces and Clear Aligners

For patients with mild to moderate underbites, traditional braces or clear aligners can effectively shift misaligned teeth into their proper position. This treatment gradually aligns permanent teeth and improves bite function, making it easier to achieve straight teeth.

Expanders and Other Orthodontic Devices

Young patients, particularly those whose baby teeth are still present, may benefit from an upper jaw expander. This appliance widens the upper jaw, helping to improve alignment before adult teeth fully develop. By widening the jaw, this approach can address early jaw misalignment and prevent the need for more extensive treatments later.

Retainers and Occlusal Splints

Mild cases of underbite, especially those involving jaw misalignment rather than severe structural issues, may be managed with retainers or occlusal splints. These devices encourage teeth to straighten over time and help alleviate symptoms like chronic jaw pain associated with Temporomandibular Joint Disorder (TMJ) issues.

Surgical Treatment Options

In severe cases, particularly when a severe underbite affects daily comfort or function, underbite surgery may be recommended. Known as orthognathic jaw surgery, this procedure involves repositioning one or both jaws for improved alignment.

Orthognathic Jaw Surgery

Orthognathic surgery corrects jaw misalignment and aligns the upper and lower jaws to improve facial symmetry and oral function. During this surgery, the lower jaw or upper jaw may be repositioned, depending on the individual’s needs, to achieve a correct position for healthy teeth and jaws.

Mini-Screws or Plates

Some patients may benefit from less invasive surgical options, such as mini-screws or plates, which are placed to support orthodontic treatment and guide jaw growth. These devices provide a stable foundation for underbite treatment and are often recommended for patients who require minimal structural changes.

Choosing the Right Underbite Solution

Whether you’re considering braces or surgery, the right treatment for your underbite will depend on several factors, such as age, the severity of the underbite and any existing dental conditions.

Consulting with a specialist, such as those at The Dentist at 70 Pitt Street, will ensure you receive an accurate diagnosis and customised treatment plan. They can help you navigate options to fix your underbite, improving not only your smile but also your overall oral health and quality of life.

Addressing an underbite early can prevent further complications with jaw alignment and dental wear.

Conclusion

Underbite correction offers both aesthetic and functional benefits, from healthy teeth to enhanced jaw alignment. By exploring your options, you can choose the treatment that best aligns with your dental health goals. Book a consultation with The Dentist at 70 Pitt Street to discover the most effective solution for your underbite and take the first step toward a balanced, aligned smile.

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FAQs

Below you can find more FAQs about how to fix an underbite but if you need any more information, please don’t hesitate to contact us. Or you can use the online form to book an appointment.

Can an underbite lead to further dental issues if left untreated?

Yes, untreated underbites can lead to uneven wear on teeth, increasing the risk of tooth decay over time. The imbalance may also strain the jaw, potentially causing discomfort and affecting oral health overall.

What is the approximate cost of orthognathic surgery for underbite correction?

The orthognathic surgery cost varies depending on the complexity of the procedure and any additional treatments required, so it’s best to discuss specific pricing with your dental specialist during a consultation.

Will fixing an underbite help straighten my teeth?

Yes, correcting an underbite often involves aligning the bite and can help straighten teeth. Treatment may involve braces or clear aligners, depending on the severity of the misalignment.

Why do my upper teeth extend behind my lower teeth in an underbite?

In an underbite, the upper teeth extend behind the lower teeth due to the forward positioning of the lower jaw. Treatment options are available to bring the bite into proper alignment.

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