Understand Underbite: Causes & Treatment Options

Prognathism, or underbites, occurs when the lower teeth stick out beyond the upper teeth when a person’s jaw is closed. 

This misalignment can lead to difficulty chewing, speech problems, and even self-confidence issues. 

Luckily, with the advancements in orthodontic care, there are solutions for people who have underbites.

This blog post explores the causes and treatments of this condition and how orthodontics can help correct it. 

What causes an underbite?

There are several underbite causes, but the most common are:. 

Genetics—Family history plays a role in whether a person develops an underbite. Genetic factors like the shape and size of jawbones affect the alignment of the teeth and can create an underbite. 

Childhood Habits –Childhood habits such as tongue thrusting or thumb sucking can cause misalignment of the jaw and lead to an underbite. 

Trauma/Injury—Any trauma or injury to the face or jaw can create an underbite. Medical conditions such as TMJ may also contribute to this condition.

Is it bad to have an underbite?

We mentioned it before, but no matter if it’s a minor or severe underbite, it can negatively impact a person’s self-esteem. 

And while some people might be solely concerned about the appearance of their smile, underbites can also affect oral function and overall health. 

For instance, a person with an underbite can have difficulty biting and chewing food properly, leading to digestive issues. The misalignment of the teeth and jaw can even create speech impediments. 

Treatment Options for an Underbite

The best non-surgical treatment for an underbite is braces – both traditional and Invisalign. 

Traditional Braces

Traditional braces gently apply pressure with metal brackets and wires and elastic bands to gradually shift the position of the teeth and jaw into proper alignment. 

For underbites, in particular, braces move the lower teeth into the proper position while guiding the top teeth into alignment. 

At Henry Orthodontics, we customize your treatment based on your specific needs. 

We’ll progress steadily in achieving proper teeth alignment and correcting your underbite through regular adjustments.  


Invisalign is a discrete option that uses clear, custom-made aligners. These aligners fit over your teeth and gradually shift them into the proper position. 

At Henry Orthodontics, we offer Invisalign and use advanced software to design your aligners. This makes Invisalign a great option for treating underbites, as the trays are precisely made based on your needs.

If you’re struggling with an underbite, we’re ready to transform your smile and confidence! Contact us today and schedule your free consultation