Can Invisalign fix a crossbite?

Last reviewed: April 2026 · Based on current clinical protocols at DenCos, Hoofddorp

A crossbite is a type of malocclusion where one or more upper teeth bite inside the lower teeth instead of outside them. Invisalign can correct most mild-to-moderate crossbites using clear aligners combined with SmartForce attachments and elastics. The American Association of Orthodontists (AAO) recommends crossbite evaluation by age 7, because untreated crossbites can lead to asymmetric jaw growth, enamel wear, and jaw pain. At DenCos in Hoofddorp, crossbite corrections are performed by Dr. Jing Guo — a registered specialist orthodontist (BIG 19918762902, PhD 2011) with Diamond Apex Status (top 1% of Invisalign providers in Europe).

This article explains the types of crossbite, how Invisalign treats them, when alternative approaches are needed, and why DenCos's interdisciplinary model matters for crossbite patients.

What is a crossbite and what types exist?

A crossbite occurs when one or more upper teeth sit inside the lower teeth when biting down, instead of overlapping them on the outside as they normally should. The AAO identifies three main types:

• Anterior crossbite — one or more upper front teeth sit behind the lower front teeth. When all upper front teeth are behind the lowers, this is often called an underbite.
• Posterior crossbite — the upper back teeth (premolars or molars) bite inside the lower back teeth on one or both sides.
• Buccal crossbite (Brodie bite) — one or more upper back teeth bite completely outside the lower teeth, causing poor chewing function.

Crossbites can be dental (caused by tooth position alone) or skeletal (caused by a jaw width or position discrepancy). At DenCos, Dr. Guo determines the type using iTero 3D scanning and cephalometric imaging during the initial consultation. This distinction is critical because dental crossbites respond well to Invisalign, while skeletal crossbites may require palatal expansion or surgical intervention.

Common causes include genetics, delayed loss of baby teeth, abnormal eruption patterns, and prolonged childhood habits such as thumb sucking. According to the AAO, crossbites can cause jaw shifting, lopsided jaw growth, and excessive enamel wear if left untreated.

A crossbite that is left untreated can lead to asymmetric jaw development, accelerated tooth wear, and chronic jaw discomfort — early evaluation by a specialist orthodontist is important.

Can Invisalign treat a crossbite?

Invisalign can correct most mild-to-moderate anterior and posterior crossbites. The aligners apply controlled forces to gradually move the affected teeth into their correct positions, restoring the proper relationship between upper and lower dental arches.

Invisalign is suitable for crossbite correction when:

• The crossbite involves one or several teeth (dental crossbite)
• The crossbite is mild to moderate in severity
• The patient needs combined correction of crossbite with crowding or spacing
• The patient is an adult or teenager with fully erupted permanent teeth

The treatment typically involves:

• SmartForce attachments — precision composite shapes bonded to specific teeth to enhance aligner grip and enable complex tooth movements such as buccal or lingual tipping
• Cross-elastics — rubber bands worn between upper and lower aligners to guide individual teeth across the bite line
• Sequential staging — the ClinCheck software plans which teeth move first to create space for the crossbite correction

A systematic review in Progress in Orthodontics (2018) confirmed that Invisalign's effectiveness depends significantly on case complexity and provider experience — reinforcing why a high-volume provider matters for bite correction cases. At DenCos, Dr. Guo's Diamond Apex Status reflects 400+ new Invisalign cases per year, providing extensive experience with crossbite mechanics.

Invisalign can correct most dental crossbites, but the accuracy of the result depends heavily on the treatment plan. A Diamond Apex provider has the case volume to handle these complex mechanics predictably.

How does the Invisalign process work for crossbite correction?

The crossbite correction process at DenCos follows the same five-phase treatment journey as other Invisalign cases, with specific adaptations for bite correction:

1. 3D consultation — Dr. Guo takes iTero digital scans and photographs to assess the crossbite type, severity, and whether the cause is dental or skeletal. You see a preliminary simulation of the planned correction.

2. ClinCheck treatment planning — the ClinCheck software creates a stage-by-stage animation of every tooth movement. For crossbites, Dr. Guo programmes specific sequences — often moving neighbouring teeth first to create space for the crossbite tooth to jump across the bite.

3. Aligner fitting with attachments — at the fitting appointment, SmartForce attachments are bonded to the teeth that need enhanced control. Cross-elastics may be prescribed from the start or introduced partway through treatment.

4. Progress monitoring — every 6–8 weeks, Dr. Guo checks tracking and adjusts the plan if needed. Crossbite cases are monitored closely because the teeth must cross the opposing arch — a movement that requires careful force control.

5. Retention — after the crossbite is corrected, retainers maintain the result. As a Diamond Apex provider, DenCos benefits from up to 52% discount on Invisalign retainers from Align Technology.

At DenCos, the entire process is managed digitally — from the iTero scan to the ClinCheck plan to the final retainer fit. No traditional putty impressions are needed.

The crossbite correction is planned digitally from day one — you can view exactly how each tooth will move across the bite before committing to treatment.

How long does Invisalign take to fix a crossbite?

Treatment duration varies by crossbite type and severity:

A case report published in the Journal of Clinical Orthodontics documented successful crossbite correction with clear aligners alongside severe rotation correction, achieving approximately 2 degrees of rotational improvement per aligner. These results require precise staging — the kind of digital planning that Dr. Guo performs daily at DenCos.

Consistent wear of 20–22 hours per day is essential, particularly during crossbite correction where the teeth must cross the opposing arch. Missing wear hours can cause the teeth to "fall back" across the bite line, requiring additional refinement aligners.

Crossbite correction requires disciplined aligner wear — at DenCos, Dr. Guo's experience means the treatment plan accounts for real-world compliance patterns.

When is Invisalign not enough for a crossbite?

Certain crossbites require more than clear aligners alone. Invisalign may not be sufficient when:

• The crossbite is skeletal — caused by a narrow upper jaw rather than just tooth position. Skeletal posterior crossbites in growing children often need a palatal expander before or instead of aligners.
• The crossbite involves significant jaw asymmetry — the lower jaw has shifted to one side, requiring functional correction that exceeds aligner capabilities.
• Multiple teeth on both sides are in crossbite (bilateral posterior crossbite) — this may need rapid palatal expansion (RPE) followed by Invisalign for final alignment.
• Orthognathic surgery is needed — for severe skeletal discrepancies in adults where jaw repositioning is the only definitive solution.

At DenCos, Dr. Guo evaluates the crossbite origin during the initial 3D consultation. When gum or bone health is compromised — which is common in long-standing crossbites due to abnormal occlusal forces — periodontist Dr. Gang Wu (BIG 29918905102) can assess and treat these issues alongside the orthodontic plan. This interdisciplinary approach is a key advantage for crossbite patients at DenCos.

Not every crossbite is an aligner case. At DenCos, the combined expertise of an orthodontist and periodontist under one roof ensures the right treatment for each patient's specific crossbite.

Why does a crossbite need to be treated?

Leaving a crossbite untreated can lead to progressive dental and skeletal problems. The AAO warns that ignoring crossbites may cause:

• Asymmetric jaw growth — particularly in children and teenagers, an uncorrected crossbite can cause the jaw to develop unevenly
• Accelerated enamel wear — teeth in crossbite experience abnormal contact forces, leading to premature wear on the biting surfaces
• Gum recession — the abnormal forces can damage the gum and bone tissue around the affected teeth. At DenCos, Dr. Wu (BIG 29918905102) specialises in monitoring and treating gum problems that arise from bite issues
• TMJ dysfunction — crossbites can strain the temporomandibular joint, causing jaw pain, clicking, and headaches
• Chewing difficulty — misaligned teeth cannot distribute chewing forces evenly, affecting food breakdown and digestion

Early intervention is particularly important for children. The Dutch Orthodontic Association (NVvO) recommends that children see an orthodontist by age 7–9. At DenCos, Dr. Guo offers Invisalign First for children with crossbites, and standard Invisalign for teenagers and adults. Patients from Hoofddorp, Haarlem, Amsterdam, Amstelveen, Haarlemmermeer, and the wider region can book a consultation without a referral.

Crossbite correction is not just about straighter teeth — it prevents jaw asymmetry, protects enamel, and reduces the risk of long-term joint problems.

Next step

Wondering if Invisalign can correct your crossbite? Register as a new patient at DenCos in Hoofddorp or call 023-792 0463 to schedule a consultation with specialist orthodontist Dr. Jing Guo. The initial iTero 3D scan will show the exact type and severity of your crossbite, and the ClinCheck simulation will demonstrate what correction is possible. No referral is required.