How to Fix an Underbite

how to fix an underbite

Wondering how to fix an underbite? If you are, you’ve landed in the right place. Whether your underbite is slight or seriously noticeable, there are many reasons to correct your underbite problem and straighten your smile. From improving your confidence and emotional wellbeing to sorting out eating issues and avoiding future oral health problems, fixing your bite could be one of the best things you ever do.

At SmartSmileCo, we love helping our customers get straight, sparkling smiles conveniently, cost-effectively, and safely. Smiles that boost confidence and make brilliant things happen. So why not start your free online assessment with SmartSmileCo today and find out if you’re suitable for our comfortable, clear aligners?

What is an Underbite?

An underbite is when the lower teeth protrude forward and beyond the upper front teeth. Clinically, an underbite is also known as a class III malocclusion or prognathism. Although many people live happily with a mild alignment issue, a more pronounced misalignment can cause various problems if left untreated.

An underbite can cause:

  • Wear and cracking of teeth
  • Jaw pain or TMJ disorder
  • Speech problems
  • Chronic headaches
  • Issues when eating
  • Tooth decay
  • Mouth breathing, bacterial infections & halitosis
  • Breathing problems when sleeping, such as snoring and sleep apnea
  • Self-esteem issues

If you have an underbite or any other dental malocclusion, it’s vital to brush and floss your teeth well and at least twice a day, whether you’ve just started to investigate how to fix an underbite and are considering corrective treatment or are content to live with your underbite for now. You’ll need your teeth and gums to be healthy and in great shape to get the best results from any straightening treatment you may have in the future.


What Causes an Underbite?

Although not as common as an overbite, it’s estimated that between five and ten percent of people are affected by an underbite. So, if your lower front teeth sit in front of your front upper teeth, you’re by no means alone. Want to know how to correct your underbite and why you have this particular dental issue?

There are various reasons why you may have developed an underbite, including:


If you have an underbite, it’s most likely just in your genetic makeup, and you’ve inherited your misalignment from your family. If one of your parents or grandparents rocks an underbite, there’s a good possibility you could develop one too.

Bad Habits

Childhood habits such as thumb sucking, prolonged dummy use, and extended bottle feeding can all contribute to the development of an underbite. As can the habit of pushing your teeth forward with your tongue.


Serious facial injuries could cause jawbone damage. Even if your jawbones are repaired following an accident, they may not align properly, resulting in an underbite.

Can an Underbite be Corrected without Surgery?

Don’t worry. You’ll only need to go under the knife to correct your underbite if you have an extremely severe skeletal problem causing your malocclusion. Thanks to advances in orthodontic technology, most underbite correction is now non-invasive, pain-free, and reasonably affordable. And with SmartSmileCo, your underbite correction treatment can be carried out from the comfort of your own home.

So you don’t need to suffer the thought of a surgical procedure or put up with your bad bite anymore. Here’s how to fix your underbite safely, effectively, and without any scary surgery.

How to Fix an Underbite — Treatment Options

How is an underbite corrected? The most common correction method for underbites in adults is with orthodontic treatments, using either a metal brace or clear aligners.

Metal Braces

Wearing a metal brace to realign your bite is an effective way to fix your underbite. Made up of ligature elastic, archwire, bonding material, and metal brackets, your metal brace will be attached to your teeth by an orthodontist. So you won’t be able to remove your brace during your treatment. Bear in mind it’s likely you’ll need to wear your metal brace for two to three years to fix your malocclusion.

Clear Aligners

Correcting an underbite with clear aligners will probably be the preferred choice for most people. Clear, plastic aligners give you all the shifting power of a metal brace without having to try to pull off the mouth-full-of-metal look on a daily basis. In fact, SmartSmileCo clear aligners are so transparent, it’s highly likely no one will even notice you’re wearing them.

Our aligners are also removable. So you can take your plastic aligner out to enjoy your food and thoroughly brush your teeth. Great news!

The popularity of clear aligners has skyrocketed over recent years. And it’s not hard to see why clear aligners from SmartSmileCo are:

Crystal Clear

Virtually invisible and more transparent than other providers

Made with Tri-Layer SuperClear Technology

Much more effective than single-layer plastic aligners

Approved by Orthodontists

Qualified orthodontists and dental professionals plan and review every SmartSmileCo case

Made with Stain-Resistant Material

Much easier to keep cleaner and clearer for longer

Comfort Cut

Absolutely no gum-irritating straight-cut edges


BPA, latex, phthalate, and mercury-free


SmartSmileCo aligners cost over 70% less than traditional metal braces and many other teeth straightening alternatives

clear aligner for underbite

Correct Your Underbite Safely with SmartSmileCo

Why correct your underbite with SmartSmileCo?

  • We don’t just deal with simple teeth straightening. We can accommodate simple, moderate, and even some complex cases
  • Other providers can take weeks to produce treatment plans — we’ll review and plan your case in 3-4 days
  • See for yourself the impact that wearing our clear aligners will have on the shape of your whole mouth with a true 3D plan
  • We won’t keep you waiting for weeks on end. Once your treatment plan is approved, you can expect your delivery in just 10 days
  • If night-time retainers feature in your treatment plan, you’ll get these 1 set free of charge with SmartSmileCo. Other providers can charge up to $200 for a set of retainers


Ready to get rid of your underbite? Now you know how to fix an underbite, why not start your free online assessment with SmartSmileCo today? Correct your bite, boost your confidence, and make brilliant things happen.

smartsmileco will fix your underbite