What Is a Crossbite and How Is It Treated?

Published:
Updated:

The dentist says you have a crossbite – what does that mean? It’s a common dental issue. While it won’t straighten out on its own, treatment options are available to correct it.

A crossbite, sometimes called an underbite, is a form of malocclusion. It means your teeth don’t line up correctly when you close your mouth. It can affect one or two teeth or a group of teeth, like your front or back teeth.

I had an excellent experience with Dr. Behl and her entire team during my wisdom tooth extraction. I chose IV sedation, and it made all the difference. I was awake and aware throughout the procedure, but I felt completely relaxed and never experienced the panic or anxiety I usually have at the dentist. Dr. Behl and her staff were compassionate, professional, and attentive from start to finish, making sure I was comfortable every step of the way. If you have dental anxiety or avoid going to the dentist because of fear, I highly recommend Dr. Behl and her team. They provided exceptional care and made what I expected to be a stressful experience surprisingly calm and comfortable.
Response from the owner:Thank you for your thoughtful review and kind words! We’re honored by your recommendation and are so glad you had a positive experience with our team. We truly appreciate you taking the time to share your feedback!
All of the staff have been extremely incredible. Dr. Thoms was amazing & really helped calm me before my procedure. Dr. Thoms answered any & all questions I have had & was extremely understanding when it comes to having dental anxiety. Robyn was the best X-ray technician I have ever had. She felt personable but still extremely professional. Throughout my life I have been to numerous dentists in hopes of finding one that will take my extreme dental anxiety seriously & not make me feel bad for it. I have finally found my favorite dentist. The Dental Anesthesia Center is my #1 pick if I had to chose any dentist.
Response from the owner:Thanks for your kind words and for sharing your experience. We’re grateful for your trust in our team and are pleased to hear you felt supported and comfortable throughout your visit. We appreciate your recommendation and look forward to continuing to provide compassionate, patient-centered care.
Hands down the best dental office in the area! They have always taken care of me and been very accommodating. The Doctors are the BEST!!! I would HIGHLY recommend this office if you are looking for a dentist! 5+ stars all around.
Response from the owner:Thank you for your wonderful review and recommendation! We’re grateful for your kind words and are thrilled to hear that our team has provided a positive experience. We appreciate your support and look forward to serving our community with exceptional care.
I started seeing this practice as a scared middle age woman that thought she was quickly on the way to being toothless. Years later now, still working with the amazing Dr Behl and her amazing staff, I have been able to continue with my present teeth. Alway kind, full of grace, mercy and humor!
Response from the owner:Thank you for your thoughtful review. We’re honored to be part of your dental journey and appreciate your kind words about Dr. Behl and our team.
We have been taking our son to Dental Anesthesia since 2019. He gets his dental treatment and blood work done at the same time. We find the staff and Dr. Thoms highly professional. They communicate well and provide excellent treatment/services. Getting blood work done during sedation helps us a lot.
Response from the owner:Thank you for your kind words and for sharing your experience. We’re honored to be part of your family’s care. We appreciate your trust in us.

There are various treatments for crossbites and underbites. At The Dental Anesthesia Center, we can help you understand what causes it and how to treat this dental problem.

Types of Crossbites

With a normal bite, your upper teeth should be wider and sit on the outside of your bottom teeth. Each of your upper teeth touches the matching lower teeth so that the force when you chew is evenly distributed across your mouth.

If you have a crossbite, movements such as chewing and clenching cause irregular wear and damage to your teeth and jaw. There are two main types of crossbite:

  • Posterior crossbite – This occurs when your upper back teeth sit inside your bottom teeth. It may happen on only one side of your mouth or both sides. This type of crossbite affects a more significant percentage of the population and is relatively easy to correct.
  • Anterior crossbite – This is when one or more of your upper teeth sit behind your lower front teeth. This is unlike an underbite which occurs when all of your top teeth are behind your bottom teeth.

Causes of a Crossbite

There are various causes of a crossbite. They are typically caused by skeletal or dental issues or a combination of the two. Tooth growth delays, habits, upper airway problems, problems with bone structure, or genetics can cause it.

Specific causes of crossbites include the following:

  • Tongue thrust during swallowing
  • Finger or thumb sucking
  • Baby teeth that don’t fall out
  • Early baby tooth loss
  • Teeth too big to fit well for proper alignment
  • Small jaw – teeth can’t fit all your teeth
  • Cleft lip or palate
  • Chronic mouth breathing

Our teeth and bones can be pushed and twisted out of shape for various reasons. When teeth are missing or come in late, other teeth shift and drift, which causes alignment and structural issues.

How a Crossbite is Treated

The earlier the treatment, the better. A crossbite doesn’t straighten out on its own, so treating it early on, if possible during childhood, is suggested. However, a crossbite can be corrected at any age.

If your child has a crossbite, you’ll want to get them into an orthodontist as early as age 7 or 8 to begin treatment. The type of treatment used will depend on the severity and cause of the crossbite. Common crossbite treatments include:

  • Braces
  • Palatal expander
  • Clear aligners
  • Fixed palatal crib
  • Removable appliances
  • Myofunctional therapy

If you have questions about your teeth or treatment, contact The Dental Anesthesia Center. We value our patient relationships, making it our priority to deliver the gentle dental care you deserve from sedation dentists in St. Louis.

Call Us Today

The first two board-certified Dentist Anesthesiologists in the state of Missouri.

Updated: April 9, 2025

Leave a Comment