How to Fix an Underbite: Treatment Options and Solutions

 An underbite is a dental condition where your lower jaw and teeth sit in front of your upper teeth when you close your mouth. While some underbites are minor and not very noticeable, others can be more pronounced, affecting your appearance and how you talk and chew. The good news is that there are many effective ways to fix an underbite, no matter your age or the severity of the condition. 

In this guide, we’ll explore what causes an underbite, why it’s important to treat it, and the different solutions available to help you achieve a healthy, confident smile.

What is An Underbite, and How Does It Impact Your Oral Health?

An underbite, also known as a Class III malocclusion, is a type of dental misalignment. Think of a healthy bite like a well-fitting lid on a jar, where the upper teeth slightly overlap the lower teeth. With an underbite, this is reversed—the lower jaw and teeth stick out, sitting in front of the upper teeth.

This misalignment can cause several issues:

  • Difficulty chewing and biting: It can be hard to bite into and chew food properly, which might lead to digestive issues.

  • Speech problems: The position of your teeth and jaw can affect how you pronounce certain sounds, such as “s” and “f,” which can lead to a lisp.

  • Uneven tooth wear: Since your teeth don’t fit together correctly, some teeth may wear down faster than others, increasing the risk of cracks and other dental problems.

  • Jaw pain: The unnatural position of your jaw can put stress on your jaw joint (the temporomandibular joint, or TMJ), leading to pain, headaches, and a “locked jaw” feeling.

  • Appearance: A prominent lower jaw can alter your facial shape, making you feel self-conscious.

The Causes of An Underbite

An underbite can happen for a few reasons, and it’s often a mix of different factors. The most common cause is genetics. If someone in your family has an underbite, there’s a higher chance you might get one too, as the size and shape of your jaws are often inherited.

Other causes include:

  • Childhood habits: As a child, habits like prolonged thumb-sucking, using a pacifier for too long, or tongue-thrusting (where the tongue constantly pushes against the lower teeth) can influence how the jaw and teeth grow.

  • Jaw and bone structure: Sometimes, the upper jaw is underdeveloped, or the lower jaw is overdeveloped, leading to an underbite.

  • Injury: A serious injury to the face or jaw can cause a misalignment if the jawbone doesn’t heal correctly.

The Effects of An Untreated Underbite

Ignoring an underbite can lead to more significant problems in the future. Beyond the daily difficulties with chewing and speaking, an untreated underbite can cause:

  • Further dental issues: Uneven tooth wear can make your teeth more prone to cavities and gum disease.

  • Chronic jaw pain: The constant strain on your jaw joint can lead to chronic pain and headaches.

  • Low self-esteem: Feeling unhappy with your smile or face shape can impact your confidence and social interactions.

It’s clear that fixing an underbite is not just about looks; it’s about your long-term health and well-being.

Treatment Options for Fixing An Underbite

The best way to fix an underbite depends on your age and how severe the condition is. A dentist or orthodontist, like dentist Cranbourne West, can help you find the right solution.

1. For Children and Teens

Fixing an underbite in children is often easier because their bones and jaws are still growing. This makes them more responsive to treatment.

  • Braces: Traditional braces are a common and effective way to fix an underbite. They use brackets and wires to gradually move the teeth and jaw into the correct position.

  • Reverse-Pull Headgear (Facemask): This device is often used for younger patients. It looks like a facemask that wraps around the head and attaches to braces or plates in the mouth. It works by gently pulling the upper jaw forward to align it with the lower jaw.

  • Palatal Expander: If the underbite is caused by a narrow upper jaw, a special device called a palatal expander can be fitted to the roof of the mouth. It gradually widens the upper jaw to create more space.

2. For Adults

Since an adult’s jawbones have stopped growing, correcting an underbite can be more complex. However, it’s definitely possible!

  • Braces: Braces are still a great option for many adults, especially if the underbite is mild to moderate.

  • Clear Aligners (like Invisalign): For some mild to moderate cases, clear aligners can be used. These are custom-made, clear plastic trays that you change every few weeks to slowly shift your teeth. They are a popular choice for adults because they are nearly invisible and can be taken out for eating and cleaning.

  • Jaw Surgery (Orthognathic Surgery): In severe cases where the jawbones are misaligned, surgery may be the best option. An oral surgeon works with an orthodontist to physically reposition the upper or lower jaw. This is a big step, but it can be life-changing for someone with a severe underbite, dramatically improving both function and appearance.

How Long Does It Take to Fix An Underbite?

The length of underbite treatment varies for everyone. It depends on factors like your age, the severity of the underbite, and the chosen treatment method.

  • Braces: For most people, braces take about 12 to 24 months to correct an underbite.

  • Jaw Surgery: While the surgery itself gives an immediate result, the full process, including wearing braces before and after the operation, can take 2-3 years.

  • Clear Aligners: Treatment with clear aligners can be quicker for mild cases, sometimes as short as 6 months, but more complex cases can take longer.

No matter the treatment, remember that consistency is key. Wearing your appliances as instructed and attending all your appointments will help keep your treatment on track.

Benefits of Fixing An Underbite

Fixing an underbite offers more than just a pretty smile. The benefits can be truly life-changing:

  • Improved oral health: A correctly aligned bite makes it easier to clean your teeth, reducing the risk of tooth decay and gum disease. It also prevents uneven wear on your teeth.

  • Better chewing and speech: You’ll be able to chew your food more effectively and speak more clearly.

  • Relief from pain: Correcting the jaw’s position can relieve the stress on your jaw joint, reducing headaches and jaw pain.

  • Boosted self-confidence: A straighter, more aligned smile can make you feel more confident in your daily life.

When to Consult a Dentist or Orthodontist for Underbite Treatment

The best time to see a professional is as soon as you notice a problem. Early treatment for children is very effective, as their jaws are still growing. Orthodontists in Australia recommend a first visit for an orthodontic check-up around age seven.

For adults, it’s never too late. If you’re concerned about your underbite, or if it’s causing you pain or discomfort, don’t wait. A consultation with the qualified dentist or orthodontist is the first step toward understanding your options. We can assess your unique situation and create a personalised treatment plan for you.

Conclusion

An underbite is a common dental issue, but with the right treatment, it’s a problem that can be fixed. Whether it’s through braces, clear aligners, or surgery, there’s a solution for everyone. Fixing your underbite is an investment in your health, your comfort, and your confidence. 

If you’re ready to take the first step towards a healthier, happier smile, it’s time to book a consultation with a dentist or orthodontist today. 

Source: How to Fix an Underbite: Treatment Options and Solutions

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