Can Invisalign Fix Overbite, Underbite, Crossbite, and Other Bite Problems?

Understanding Bite Problems: Dental vs. Skeletal

Before exploring what Invisalign can and cannot correct, it is important to understand the fundamental distinction between dental malocclusions and skeletal malocclusions. This distinction determines whether Invisalign is appropriate for your case.

A dental malocclusion is a bite problem caused by the position of the teeth — the teeth are in the wrong positions, but the underlying jaw bones are properly aligned. Most mild to moderate bite problems fall into this category. Invisalign excels at correcting dental malocclusions because it applies precise, controlled forces to move teeth into their correct positions.

A skeletal malocclusion is a bite problem caused by the size or position of the jaw bones themselves — one jaw is too large, too small, or positioned incorrectly relative to the other. Severe skeletal malocclusions cannot be fully corrected by moving teeth alone; they require either growth modification (in children and adolescents) or orthognathic (jaw) surgery (in adults). Invisalign can improve the appearance of mild skeletal malocclusions but cannot fully correct severe ones.

At your consultation at ID Wellness Dental, Dr. Liya Mohammed will examine your bite, take digital X-rays, and use the iTero 3D scanner to determine whether your bite problem is dental, skeletal, or a combination — and recommend the most appropriate treatment accordingly. For a full overview of the Invisalign process, see our complete Invisalign patient guide.

Overbite: Can Invisalign Fix It?

An overbite — also called a deep bite — occurs when the upper front teeth overlap the lower front teeth more than the normal 1–3mm. A significant overbite causes the upper teeth to cover too much of the lower teeth when biting, and in severe cases, the lower teeth may bite into the roof of the mouth.

Invisalign corrects overbites using two primary mechanisms. First, precision bite ramps are built directly into the upper aligner plastic. When the patient bites down, these ramps contact the lower front teeth and gradually push the lower jaw forward into the correct position. Second, Class II elastics (rubber bands) can be attached to hooks or buttons on the aligners to apply additional forward force on the lower jaw.

Invisalign is effective for mild to moderate overbites of dental origin. Severe overbites — particularly those with a significant skeletal component — may require traditional braces with additional appliances for optimal correction. The good news is that the majority of adult overbite cases fall into the mild to moderate range that Invisalign handles well.

Underbite: Can Invisalign Fix It?

An underbite occurs when the lower front teeth protrude in front of the upper front teeth when biting. It is less common than overbite and can range from a single tooth in crossbite to a full lower jaw protrusion.

Invisalign can treat mild to moderate dental underbites — those caused by tooth positioning rather than jaw structure. In these cases, the aligners move the upper teeth forward and/or the lower teeth backward to achieve proper bite alignment. Class III elastics may be used to apply additional corrective force.

Severe skeletal underbites — where the lower jaw is structurally too large or the upper jaw is structurally too small — are among the most challenging bite problems to treat without surgery. For adult patients with severe skeletal underbites, traditional braces combined with orthognathic surgery typically produces the most stable, functional result. Dr. Liya Mohammed will be transparent about what Invisalign can realistically achieve for your specific underbite at your consultation.

Crossbite: Can Invisalign Fix It?

A crossbite occurs when one or more upper teeth sit inside (behind) the lower teeth when biting — the opposite of the normal relationship. Crossbites can affect the front teeth (anterior crossbite) or the back teeth (posterior crossbite), and they can involve a single tooth or multiple teeth.

Crossbite correction is one of Invisalign's well-documented clinical strengths. The aligners apply precise three-dimensional forces to move individual teeth into their correct positions, making them effective for both anterior and posterior crossbites. Single-tooth crossbites often respond particularly well to Invisalign treatment.

Untreated crossbites can cause uneven tooth wear, jaw pain, asymmetric jaw growth (in children), and gum recession on affected teeth. Correcting a crossbite with Invisalign not only improves the appearance of the smile but also protects the long-term health of the teeth and jaw joint. For a comparison of how Invisalign and braces approach crossbite correction, see our Invisalign vs. Braces guide.

Open Bite: Can Invisalign Fix It?

An open bite occurs when the upper and lower front teeth do not meet when the back teeth are closed, leaving a visible gap between the front teeth. It is one of the more complex bite problems to treat because it can have multiple contributing causes — including thumb sucking habits, tongue thrust, skeletal factors, and tooth eruption patterns.

Invisalign can treat mild to moderate anterior open bites, particularly those of dental origin. The aligners use a combination of tooth intrusion (pushing back teeth down) and extrusion (pulling front teeth down) to close the open bite. Vertical elastics may be used to assist with open bite closure.

The stability of open bite correction depends significantly on addressing the underlying cause. If a tongue thrust habit is contributing to the open bite, myofunctional therapy (tongue muscle retraining) should be undertaken alongside Invisalign treatment to prevent relapse. Open bite cases with a significant skeletal component may require a combination of orthodontics and surgery for full correction.

Crowding: Can Invisalign Fix It?

Dental crowding — where there is insufficient arch space for all teeth to align properly — is one of the most common reasons patients seek orthodontic treatment, and it is one of Invisalign's core strengths. The aligners progressively move crowded teeth into their correct positions by creating space through a combination of arch expansion, tooth rotation, and interproximal reduction (IPR).

Interproximal reduction (IPR) is a technique in which tiny amounts of enamel are removed from between adjacent teeth to create space. It is safe, painless, and performed with a fine disc or strip. IPR is commonly used in Invisalign treatment for moderate crowding and does not weaken the teeth when performed within appropriate limits.

Severe crowding — particularly cases where multiple teeth are significantly displaced — may require tooth extraction before Invisalign treatment to create sufficient space. Dr. Liya Mohammed will determine whether extraction is necessary at your consultation and will discuss the implications for your treatment plan and timeline.

Spacing and Gaps: Can Invisalign Fix Them?

Gaps between teeth (diastemas) are among the easiest bite problems for Invisalign to correct. The aligners apply controlled forces to move teeth together, closing the spaces progressively over the course of treatment. Small to moderate gaps typically respond quickly and predictably to Invisalign treatment.

The most common gap is between the two upper front teeth (a midline diastema). This is a highly visible cosmetic concern that Invisalign can typically address effectively. After gap closure, a retainer is essential to prevent the gap from reopening — the teeth have a natural tendency to drift back to their original positions without consistent retention.

How Invisalign Moves Teeth for Bite Correction

Bite correction with Invisalign involves more complex tooth movements than simple crowding or spacing correction. The technology has advanced significantly since Invisalign's introduction, and the current generation of aligners can achieve tooth movements that were previously only possible with traditional braces.

Key features used for bite correction include: precision bite ramps for overbite correction; precision cuts in the aligner plastic that allow elastics to be attached for jaw movement; optimized attachments (small composite bumps bonded to teeth) that give the aligners additional leverage for complex movements; and SmartForce features engineered into the aligner design to control the direction and magnitude of tooth movement forces.

For a detailed explanation of how these mechanisms work, see our guide to how Invisalign works.

Related Conditions

Untreated bite problems are associated with several secondary conditions. Temporomandibular joint (TMJ) disorders are more common in patients with significant overbite, underbite, or crossbite, as the misaligned bite places uneven stress on the jaw joint. Bruxism (teeth grinding) is often exacerbated by bite misalignment. Uneven tooth wear and enamel erosion occur when teeth contact incorrectly. Gum recession can develop on teeth in crossbite due to abnormal forces. Correcting the bite with Invisalign addresses not only the cosmetic concern but also these functional and health-related issues.

Preventive Advice

After completing bite correction with Invisalign, consistent retainer wear is the most important preventive measure. Bite problems — particularly overbite and open bite — have a higher relapse tendency than simple crowding or spacing, making lifelong nightly retainer wear especially important. Patients who had a tongue thrust habit contributing to their open bite should complete myofunctional therapy and continue the exercises long-term. Schedule annual dental check-ups so Dr. Liya Mohammed can monitor your bite stability and retainer fit over time.