Crossbite Correction: Treatment Options, Timeline, and Cost

What Is a Crossbite?

A crossbite is a type of dental misalignment, or malocclusion, where the upper and lower teeth do not meet properly when you bite down. Normally, the upper teeth sit slightly outside the lower teeth. In a crossbite, one or more upper teeth sit inside the lower teeth instead.

Crossbites can involve a single tooth or multiple teeth. They can be caused by the teeth themselves being in the wrong position (dental crossbite), by the upper or lower jaw being too narrow or too wide (skeletal crossbite), or by a combination of both. The distinction matters because it affects which treatment approach will work best.

What Causes a Crossbite?

Crossbites develop from a combination of genetic and environmental factors. Understanding the cause helps your orthodontist choose the most effective treatment approach.

• Genetics: Jaw size and shape are largely inherited. If a parent has a narrow upper jaw or a wider lower jaw, their children are more likely to develop a crossbite.
• Prolonged thumb sucking or pacifier use: Sustained sucking habits beyond age 3 to 4 can narrow the upper jaw and push the upper front teeth inward.
• Mouth breathing: Chronic mouth breathing (often from enlarged tonsils, adenoids, or allergies) can alter jaw development. The tongue normally rests against the roof of the mouth and helps widen the upper jaw during growth. Mouth breathers tend to have a lower tongue position, resulting in a narrower upper arch.
• Delayed or abnormal tooth eruption: Baby teeth lost too early or permanent teeth that come in at unusual angles can create crossbites.
• Crowding: When the upper jaw does not have enough space for all the teeth, some teeth may be pushed inward into a crossbite position.

Crossbite Correction Treatment Options

The right treatment depends on three factors: the type of crossbite (anterior or posterior), the cause (dental, skeletal, or both), and the patient's age. Your orthodontist will take X-rays, photographs, and dental impressions to create a treatment plan.

When to Treat a Crossbite: Age Considerations

The American Association of Orthodontists recommends that every child have an orthodontic evaluation by age 7. This is particularly important for crossbites because early treatment can take advantage of jaw growth to achieve results that would require surgery in an adult.

For posterior crossbites in children, treatment with a palatal expander between ages 7 and 10 is often the simplest and most effective option. For anterior crossbites involving only one or two teeth, treatment may be appropriate as soon as the permanent teeth involved have erupted.

Adolescents and adults can still achieve excellent results, though the treatment may be more complex. Adults with skeletal crossbites may need surgical assistance because the jaw bones are no longer growing. The key point: crossbites do not self-correct. Waiting typically makes treatment harder, not easier.

Crossbite Correction Timeline

Treatment duration varies based on the type and severity of the crossbite, the treatment method, and the patient's age.

• Palatal expander only: Active expansion takes 2 to 4 weeks. The expander stays in place for 4 to 6 months while bone stabilizes. Total treatment time is roughly 6 to 9 months.
• Braces for a single-tooth crossbite: 6 to 12 months in many cases.
• Braces for a multi-tooth crossbite: 12 to 24 months, sometimes combined with an expander.
• Clear aligners for a mild dental crossbite: 6 to 18 months depending on complexity.
• Jaw surgery with braces: 2 to 3 years total, including pre-surgical braces, the surgery, and post-surgical orthodontics.

Crossbite Correction Cost

The cost of crossbite correction depends on the treatment method, the complexity of your case, and your geographic location. Here are typical ranges. Costs vary by location, provider, and case complexity.

A palatal expander typically costs $1,000 to $3,000 when used as a standalone treatment. This cost is often included in the overall orthodontic treatment fee if braces follow. Traditional braces for crossbite correction range from $3,000 to $7,000. Clear aligners fall in a similar range, typically $3,500 to $7,000.

Jaw surgery costs significantly more due to the hospital and surgical fees involved. The surgical component alone can range from $20,000 to $40,000 before insurance. Medical insurance (not dental) often covers jaw surgery when it is deemed medically necessary rather than purely cosmetic.

Many orthodontic offices offer payment plans or in-house financing. Dental insurance plans that include orthodontic benefits typically cover a portion of braces or expander treatment, often up to a lifetime maximum of $1,500 to $3,000.

When to See an Orthodontist for a Crossbite

An orthodontist is a dentist who has completed 2 to 3 years of additional residency training focused on diagnosing and correcting misaligned teeth and jaws. They are the specialists trained to evaluate crossbites and design a treatment plan.

See an orthodontist if your child's upper teeth close inside their lower teeth (front or back), if your child's jaw shifts to one side when biting, or if your general dentist has identified a crossbite during a checkup. Adults should see an orthodontist if they notice uneven tooth wear, jaw discomfort, or facial asymmetry that may be related to a crossbite.

Early evaluation does not always mean early treatment. Sometimes an orthodontist will monitor a child's growth and recommend treatment at the optimal time. The evaluation itself is quick, low-cost, and gives you a clear picture of whether and when treatment is needed.