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What is a Crossbite? – Types, Causes, & How to Fix it

Welcome to our comprehensive guide on crossbites, where we unravel the intricacies of this dental condition, shedding light on its various types, underlying causes, and proven solutions. Join us on a journey to understanding what a crossbite is and discovering how to effectively address this issue for optimal oral health.

What is a Crossbite?

A crossbite is a dental misalignment characterized by the improper meeting of upper and lower teeth when the jaws are closed. This condition, though diverse in presentation, can significantly impact oral health. In this article, dentist peoria az we will explore the types of crossbites, delve into their causes, and provide valuable insights into fixing this dental challenge.

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Types of Crossbites

1. Anterior Crossbite

The anterior crossbite is a form of misalignment where the upper front teeth sit behind the lower front teeth during biting. This condition can result in uneven wear on the teeth and potential jaw complications if not addressed promptly.

2. Posterior Crossbite

In a posterior crossbite, the upper teeth, on one or both sides of the mouth, bite on the inside of the lower teeth. This misalignment can impact facial symmetry and hinder proper jaw development.

3. Unilateral Crossbite

A unilateral crossbite occurs when the misalignment affects only one side of the mouth. This asymmetry can lead to functional issues and may contribute to uneven wear on the affected side.

4. Bilateral Crossbite

Contrastingly, a bilateral crossbite involves misalignment on both sides of the mouth. This form of crossbite can pose challenges in chewing and may necessitate comprehensive orthodontic intervention.

Causes of Crossbites

Understanding the root causes of crossbites is fundamental to developing effective treatment strategies. While genetic factors play a role, several common causes contribute to the development of this dental misalignment:

1. Genetics

A genetic predisposition to crossbites can influence jaw structure and tooth positioning. Family history may be a key factor in determining an individual’s susceptibility to this condition.

2. Habits and Lifestyle

Certain habits, such as thumb-sucking, prolonged pacifier use, or tongue thrusting, can impact dental alignment, particularly in children. Identifying and addressing these habits early on is crucial for preventing crossbites.

3. Jaw and Tooth Discrepancies

Discrepancies in the size of the upper and lower jaws or individual tooth size can lead to misalignment during the closure of the jaws. This discrepancy may be a contributing factor to the development of crossbites.

Identifying Crossbites

Recognizing the signs of a crossbite is essential for timely intervention. Common indicators include:

  • Uneven wear on the teeth
  • Jaw pain or discomfort
  • Asymmetrical facial appearance
  • Difficulty chewing or biting

If you notice any of these signs, seeking professional dental advice is paramount to addressing the issue promptly.

Effective Solutions for Crossbites

Addressing a crossbite promptly is crucial to prevent further complications. Various treatment options are available, depending on the severity and type of crossbite:

1. Orthodontic Treatments

Orthodontic solutions, including traditional braces or clear aligners, are effective in correcting mild to moderate crossbites. These treatments work by gradually realigning the teeth to achieve optimal positioning.

2. Palatal Expanders

For cases involving a narrow upper jaw, palatal expanders may be recommended. These devices widen the upper jaw, addressing the imbalance in jaw size and facilitating proper alignment.

3. Surgical Intervention

In severe cases, surgical correction may be necessary to reposition the jaw and achieve proper alignment. This option is typically explored when other non-invasive methods prove insufficient.

Preventing Crossbites

While some factors leading to crossbites may be beyond our control, adopting preventive measures can contribute to maintaining optimal oral health:

  • Regular Dental Check-ups: Schedule routine dental visits to monitor oral development and address any emerging issues.
  • Early Orthodontic Evaluation: Consult with an orthodontist at an early age to identify and address potential alignment problems.


A thorough understanding of crossbites, encompassing their types, causes, and effective solutions, empowers individuals to take proactive steps toward optimal oral health. If you suspect a crossbite or have concerns about your dental alignment, seek professional guidance promptly to ensure timely and appropriate intervention.