Palatal Expansion

Make | Types | Cost | Pros & Cons

What Is Palatal Expansion?

Orthodontics, the branch of dentistry that focuses on correcting dental and facial irregularities, offers a range of treatment options to address malocclusions or misalignments of teeth and jaws. Palatal expansion, also known as rapid maxillary expansion or maxillary expansion, is a common orthodontic procedure used to widen the palate, which is the roof of the mouth. The palate consists of two halves, known as the maxilla, which are located on the upper jaw and are fused together at the midline.

Palatal expansion can be an effective treatment for a variety of conditions related to a narrow upper jaw, including crossbites, crowding of teeth, and other bite issues.

What is Palatal Expansion?

How does it work?

Palatal expansion is achieved using orthodontic appliances called palatal expanders, which are designed to apply controlled, gentle pressure on the maxillary bones to gradually separate them and create additional space. This allows for the expansion of the maxilla and the correction of the dental and facial irregularities associated with a narrow upper jaw. Palatal expansion is most commonly performed during childhood or adolescence when the jaw is still growing and more amenable to modification. However, it can also be performed in adults, although it may require additional steps and careful consideration of individual patient factors.

What is a Palate Expander?

A palate expander is an orthodontic appliance used to widen the maxilla or the roof of the mouth. Palate expanders are custom-made devices that are typically attached to the upper teeth and are used to apply controlled, gentle pressure on the maxillary bones to gradually separate them and create additional space. Palate expanders can address various dental and facial issues associated with a narrow upper jaw, including crossbites, crowding of teeth, impacted teeth, and aesthetic concerns.


What is a palatal expander made of?

Palate expanders can come in various designs and types, depending on the specific needs of the patient and the treatment goals. They are typically made of metal or acrylic material and may have different activation mechanisms, such as screw-based or spring-based systems, to allow for gradual expansion. Palate expanders are typically fixed appliances, meaning they are bonded to the teeth and cannot be removed by the patient. They are adjusted periodically by the orthodontist to achieve the desired amount of expansion and treatment outcomes.


Types of Palatal Expanders

There are several types of palatal expanders that can be used to achieve palatal expansion. The choice of palatal expander depends on various factors, including the age of the patient, the severity of the malocclusion, the desired amount of expansion, and the treatment goals. Some of the common types of palatal expanders include:

  • Rapid Palatal Expander (RPE)

    This is the most commonly used type of palatal expander and is typically used in children and adolescents. It consists of a metal framework that is bonded to the upper teeth and a screw in the middle that can be activated to gradually expand the maxilla. RPEs are typically activated by turning the screw with a special key, usually once or twice a day, to achieve the desired amount of expansion.

  • Haas Expander

    This is a type of RPE that has an acrylic plate covering the entire palate, making it more comfortable for the patient. The Haas expander is usually used in younger patients or those with a sensitive gag reflex.

  • Hyrax Expander

    This is another type of RPE that has a wider screw and is activated using a special key. The Hyrax expander is typically used in cases that require a more rapid or greater amount of expansion.

  • Quad Helix Expander

    This is a spring-based expander that uses a series of coils and helices to apply continuous pressure on the maxilla for gradual expansion. The Quad Helix expander does not require activation with a key and is typically used in cases that require minimal expansion.

  • Removable Palatal Expander

    This is a removable appliance that can be taken in and out by the patient and is typically used in cases that require minor expansion or in patients who may not tolerate a fixed appliance.

  • Implant-supported Palate Expander

    This type of palatal expander is anchored to dental implants placed in the palate, providing additional stability and control during the expansion process. Implant-supported palate expanders are typically used in cases where traditional palatal expanders may not be suitable due to anatomical limitations or other factors.

Say Goodbye to Crooked Teeth: Get Palatal Expansion Treatment Today!

Straighten your teeth and improve your oral health with palatal expansion treatment. Contact us to learn more about our services and to schedule a consultation.

Call Now

Who needs palatal expansion?

Palatal expansion may be recommended for individuals who have a narrow maxilla, or a narrow upper jaw, which can result in a variety of dental and facial issues. Some of the common conditions that may necessitate palatal expansion include:

  1. Crossbite: A crossbite occurs when the upper teeth fit inside the lower teeth, resulting in a misaligned bite. A narrow maxilla can contribute to a crossbite, and palatal expansion may be used to widen the palate and correct the crossbite.
  2. Crowding of teeth: A narrow maxilla can result in insufficient space for teeth to properly align, leading to crowding or overlapping of teeth. Palatal expansion can create additional space in the dental arch, allowing for proper alignment of teeth.
  3. Impacted teeth: A narrow maxilla can also cause teeth to become impacted, meaning they are unable to fully erupt or emerge from the gums. Palatal expansion can create adequate space for impacted teeth to properly align and erupt, preventing the need for extractions or more invasive procedures.
  4. Breathing difficulties: In some cases, a narrow maxilla can contribute to breathing difficulties, such as sleep-disordered breathing or obstructive sleep apnea. Palatal expansion may be used to widen the airway and improve breathing patterns, particularly in growing children.
  5. Aesthetic concerns: A narrow maxilla can affect the appearance of the face and smile, leading to aesthetic concerns. Palatal expansion can help create a more balanced and harmonious facial profile by widening the palate and improving dental alignment.

It is important to note that not everyone with a narrow maxilla requires palatal expansion. Orthodontic treatment, including palatal expansion, is typically recommended based on a comprehensive evaluation by an orthodontist, taking into consideration the individual’s specific dental and facial characteristics, treatment goals, and overall oral health.


How much does a palatal expander cost?

The cost of palatal expansion in Ontario can vary depending on various factors, such as the type of expander used, the complexity of the case, the duration of treatment, and the experience and expertise of the orthodontist. Generally, the cost of palatal expansion can range from $ 2,000 to $ 5,000 in Ontario. It is essential to note that these estimates are just a general range, and the actual cost can be significantly different depending on individual cases and specific orthodontic practices. It is recommended to consult with a qualified orthodontist to determine the exact cost of palatal expansion and to discuss the available payment options and insurance coverage.

Pros & Cons

Advantages of Palatal Expansion

Palatal expansion has several advantages for patients who require orthodontic treatment. Some of the main advantages of palatal expansion include:

  • Wider dental arches: Palatal expansion can help widen the dental arches, creating more space for crowded teeth to properly align. This can result in better overall dental alignment, improved occlusion (bite), and enhanced facial aesthetics.
  • Better breathing and sleep quality: Palatal expansion can also help improve breathing and sleep quality in patients with breathing issues, such as sleep apnea or narrow nasal passages. By widening the maxilla, palatal expansion can increase the nasal airway space and reduce airway resistance, leading to improved breathing and better sleep quality.
  • Reduced need for extractions: Palatal expansion can often help create enough space for the teeth to properly align without the need for extractions. This can be particularly beneficial in cases where there is crowding or overlapping of teeth and can help preserve natural teeth.
  • Improved orthodontic outcomes: Palatal expansion can improve the outcomes of other orthodontic treatments, such as braces or Invisalign. By creating more space for the teeth to align, palatal expansion can facilitate smoother and more efficient orthodontic treatment.
  • Enhanced facial aesthetics: Palatal expansion can also have positive effects on facial aesthetics. A wider dental arch can contribute to a broader smile, a more harmonious facial profile, and improved facial balance.

Disadvantages of Palatal Expansion

While palatal expansion can offer many benefits, there are also some potential disadvantages and limitations to consider. These include:

  • Discomfort and soreness: Palatal expansion can cause discomfort and soreness, particularly during the initial stages of activation. This can be managed with pain medications or other remedies recommended by the orthodontist, but it may still be uncomfortable for some patients.
  • Speech changes: Palatal expansion may temporarily affect speech, particularly in younger children who are still developing their speech skills. However, most patients adapt to the expander within a short period of time, and speech returns to normal.
  • Compliance and maintenance: Palatal expanders require regular adjustments and maintenance by the orthodontist and compliance with the treatment plan is crucial for successful outcomes. Patients need to be committed to following the orthodontist’s instructions and attending regular appointments for adjustments.
  • Potential risks and complications: Palatal expansion, like any orthodontic treatment, carries some risks and potential complications, such as discomfort, gingival recession, tooth tipping or tilting, relapse, and soft tissue irritation. However, these risks are generally low and can be managed by an experienced orthodontist.
  • Anatomical limitations: Palatal expansion may not be suitable for all patients due to anatomical limitations, such as a thin palate or other factors. In such cases, alternative treatment options may need to be considered.


How long does palatal expansion treatment take?

The duration of palatal expansion treatment can vary depending on the individual case and the type of expander used. Rapid Palatal Expanders (RPE) are typically activated for a period of 2-3 weeks, while other types of expanders may require longer activation periods. The overall treatment duration may range from several months to over a year, depending on the desired outcome and the patient’s response to treatment.

Does palatal expansion hurt?

Palatal expansion may cause some discomfort or soreness, particularly during the activation process. However, the discomfort is usually temporary and can be managed with over-the-counter pain medications. The level of discomfort may vary from person to person, and it typically subsides after the initial adjustment period.

How do I know if I or my child need palatal expansion?

Orthodontists typically determine the need for palatal expansion based on a thorough evaluation of the patient’s dental and facial structure. Common indications for palatal expansion may include crossbite, crowding of teeth, narrow upper jaw, impacted teeth, breathing difficulties, or sleep apnea. If you or your child exhibit any of these issues, it is best to consult with an orthodontist for a proper evaluation.

What types of palatal expanders are available?

There are several types of palatal expanders available, including Rapid Palatal Expanders (RPE), Haas Expander, Quad-Helix Expander, and Removable Palatal Expanders. These expanders may differ in design, activation method, and materials used, but they all aim to widen the maxilla to create more space in the dental arch.

Can adults undergo palatal expansion?

Yes, palatal expansion is not limited to children and adolescents. While palatal expansion is more commonly done during the growing years when the maxilla is still developing, adults can also benefit from palatal expansion in certain cases. However, the treatment approach may vary for adults, and additional factors such as bone density and growth patterns may need to be considered.

Can palatal expansion correct a crossbite?

Yes, palatal expansion can be an effective treatment option for correcting a crossbite. Crossbite is a condition where the upper teeth are positioned inside the lower teeth, and it can result in bite misalignment and other dental issues. Palatal expansion can widen the upper jaw, correct the crossbite, and create a more balanced bite.

What is the role of retainers after palatal expansion?

Retainers are an important part of the post-treatment phase in palatal expansion. After the desired expansion is achieved, a retainer is typically used to maintain the new position of the maxilla and prevent relapse. Retainers can be either fixed or removable, and they need to be worn as instructed by the orthodontist to ensure the stability of the results.

Can palatal expansion help with sleep apnea?

Palatal expansion has been shown to be beneficial in certain cases of sleep apnea. Sleep apnea is a condition where breathing is interrupted during sleep, and it can be caused by various factors, including a narrow upper jaw and nasal passages. Palatal expansion can widen the maxilla and improve the airflow, potentially helping to alleviate sleep apnea symptoms in some cases.

Can palatal expansion improve facial aesthetics?

Yes, palatal expansion can have a positive impact on facial aesthetics. By widening the upper jaw, palatal expansion can create a more symmetrical and balanced facial appearance. It can also help improve the alignment of the teeth, which can enhance the overall esthetics of the smile and facial profile.

Are there any risks or side effects associated with palatal expansion?

Palatal expansion is generally considered to be a safe and effective orthodontic treatment. However, like any dental or orthodontic procedure, there may be some risks and side effects. These can include temporary discomfort, soreness, or pain during the activation process, and possible effects on speech or swallowing. In rare cases, there may be risks associated with the use of appliances, such as allergic reactions or injuries to oral tissues. It is important to consult with a qualified orthodontist and follow their instructions carefully to minimize any potential risks or side effects.

Get the Perfect Smile with Palatal Expansion!

Palatal expansion is a valuable orthodontic treatment option that can provide numerous benefits for individuals with narrow upper jaws and related dental and skeletal issues. It is a well-established technique with a long history of successful outcomes. If you or your child have concerns about a narrow upper jaw, crowding of teeth, crossbite, breathing difficulties, or other related issues, consult with a qualified orthodontist to determine if palatal expansion may be a suitable treatment option. Proper evaluation, diagnosis, and treatment planning by Dynasty Tower Dental at North York, Toronto; to achieve optimal results with palatal expansion treatment.

Call Now