Can Clear Aligners Fix an Underbite?
Start Your Journey Today

Can Clear Aligners Fix an Underbite?

February 12, 2026

Curious on what is underbite and if clear aligners can fix it? Underbite is a type of malocclusion (improper bite) where your lower front teeth protrude beyond your upper front teeth. While a mild underbite may not cause any teething issues (pun intended), it may affect your oral health. Let's dive in to learn more about underbites and what we can do to treat this teeth condition!

Quick answer: when aligners can help vs when they can’t

Clear aligners are often a good option for mild to moderate underbites that are mainly due to tooth positioning (rather than a major jaw mismatch). With the help of attachments, elastics, or bite ramps, many people can see meaningful bite improvements within around 4–6 months, especially in cases without significant skeletal differences.

For more pronounced underbites driven by jaw structure, such as a noticeably forward lower jaw or a retrusive upper jaw, aligners may have more limited ability to correct the bite on their own. In these situations, orthodontists often recommend a combined approach, which can include braces and, when needed, jaw surgery, to achieve the most stable and predictable result. Certain vertical bite patterns (like deep bites or open bites) can also require more individualized planning to optimize outcomes.

Understanding underbite teeth and its implications

Underbites come in different forms, with their severity varying from mild to more pronounced cases. The primary cause is a misalignment of the upper and lower jaws, where the lower teeth protrude beyond the upper teeth. Left untreated, underbites can lead to various complications, affecting not only oral health but also your overall well-being. While mild cases may not cause significant problems, severe underbite can often lead to various functional and aesthetic concerns. That's why early intervention is important to prevent it from getting worse.

Stylized Link Example

Read more: Underbite Explained: Causes, Classifications and Treatments Options

Underbite vs overbite: the difference

The way that the teeth overlap determines whether an underbite or an overbite. When the mouth is closed, the lower teeth sit in front of the upper teeth due to an underbite, which is caused by the lower jaw projecting forward. On the other hand, an overbite occurs when the lower front teeth are partially or completely covered when the mouth is closed due to the upper front teeth overlapping them vertically. Want to know about your current teeth condition? Let's keep reading.

Common symptoms of underbite

It is essential to recognize the symptoms of an underbite to facilitate timely intervention. Identifying these signs encourages individuals to seek professional assessment and intervention in order to address the root cause. Several indicators that may aid in identifying an underbite include:

  • Visible protrusion of the lower jaw: This presents the most noticeable indication of an underbite, impacting facial aesthetics.
  • Difficulty chewing and biting: The misalignment in the bite poses a challenge to proper food chewing, potentially resulting in inefficient breakdown.
  • Speech difficulties: Underbites can influence speech patterns, leading to issues like lisping or slurring.
  • Jaw pain and discomfort: The misalignment places stress on the jaw muscles and joints, causing pain and discomfort.
  • Trouble closing or opening the mouth fully: In severe instances, there may be restrictions in the full range of jaw movement.
  • Biting the inside of the cheek or tongue: Misaligned teeth heighten the risk of unintentionally biting the soft tissues inside the mouth.
  • Facial asymmetry: Over time, an underbite can modify facial features, including a shorter upper jaw and a more prominent chin.

Effects of underbite:

Neglected underbites may give rise to various complications impacting both oral health and overall well-being. Correcting underbite at an early stage can help prevent effects such as:

  • Increased risk of tooth decay and gum disease: The misaligned teeth can be harder to clean properly, increasing the risk of cavities and gum inflammation.
  • Temporomandibular joint disorder (TMJ): The misalignment can strain the jaw joint and cause pain or discomfort leading to TMJ pain, headaches, and earaches.
  • Wear on teeth: Underbite tends to have a wear effect on the teeth. It can cause asymmetrical wear on teeth that increases the likelihood of dental issues like cavities and gum disease.
  • Sleep apnea: In severe cases, the underbite can contribute to sleep apnea by obstructing the airway to cause breathing difficulties during sleep.
  • Low self-esteem and social anxiety: The aesthetic concerns associated with underbites can affect self-confidence and social interactions.

Understanding these complications underscores the importance of early intervention and corrective measures like underbite braces to prevent the progression of these issues.

How aligners correct an underbite (attachments, elastics, staging)

In orthodontic care, clear aligners are typically designed as a series of trays worn in sequence (“staging”). Each stage is planned by a dental professional to apply small, controlled tooth movements over time. Treatment length varies based on individual diagnosis, bite condition, and wear compliance.

When needed, tooth-coloured attachments can be placed by a dentist to help the aligners grip specific teeth and improve movement control. Some treatment plans may also include elastics (rubber bands) prescribed and monitored by a dentist to support bite alignment.

Zenyum Invisible braces is an orthodontic method used by dental experts to help align teeth for a better smile. It features a set of fully customized invisible braces that are crafted with the aid of dental experts to snugly fit into your teeth. Based on the severity of the underbite condition, Zenyum invisible braces can be used to correct teeth alignment. Through gradual application of pressure, Zenyum invisible braces enable teeth movement over a period of time based on the severity of the teeth condition.

Zenyum focuses on connecting you with our partnered dentists for assessment and treatment planning. Any attachments, elastics, and clinical decisions are provided and overseen by the dentist, based on your individual suitability.

Get your teeth straightened with Zenyum

Align your teeth today for a better smile tomorrow!

Zenyum invisible braces being used by dental experts for underbite teeth

FAQs

Can you fix an underbite without braces?

In some cases, mild underbites may be improved with invisible braces (clear aligners). Since every bite is different, it’s best to consult a qualified dental professional to assess your teeth and recommend the most suitable treatment approach for your specific condition.

How long do you have to wear braces for an underbite?

Treatment time varies depending on the severity of the underbite and how consistently the aligners are worn. Mild cases may take around 3 months onward, while more complex cases can take up to 15 months. A partnered dentist can confirm your suitability and provide a more accurate timeline based on your individual bite and treatment plan.

Start Your Journey Today

How to get started with Zenyum Aligners

Start your Smile Check

Answer a few questions, and take four teeth pictures. It only takes a few minutes!

Book an appointment

Receive a call from us to schedule your dentist appointment

Visit your dentist

You’ll have 3D scans and X-rays taken of your teeth by your dentist

Approve your plan

Give the green light for your Zenyum aligners to go into production after approved by your dentist.